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2016年7月29日星期五

Global Humidity Sensor Industry 2016 Market Trends, Sales, Supply, Demand, Analysis & Forecast to 2021

The Global Humidity Sensor Industry report gives a comprehensive account of the Global Humidity Sensor market. Details such as the size, key players, segmentation, SWOT analysis, most influential trends, and business environment of the market are mentioned in this report. Furthermore, this report features tables and figures that render a clear perspective of the Humidity Sensor market. The report features an up-to-date data on key companies’ product details, revenue figures, and sales. Furthermore, the details also gives the Global Humidity Sensor market revenue and its forecasts. The business model strategies of the key firms in the Humidity Sensor market are also included. Key strengths, weaknesses, and threats shaping the leading players in the market have also been included in this research report.
The report gives a detailed overview of the key segments in the market. The fastest and slowest growing market segments are covered in this report. The key emerging opportunities of the fastest growing Global Humidity Sensor market segments are also covered in this report. Each segments and sub-segments market size, share, and forecast are available in this report. Additionally, the region-wise segmentation and the trends driving the leading geographical region and the emerging region has been presented in this report.
The study on the Global Humidity Sensor market also features a history of the tactical mergers, acquisitions, collaborations, and partnerships activity in the market. Valuable recommendations by senior analysts about investing strategically in research and development can help new entrants or established players penetrate the emerging sectors in the Humidity Sensor market. Investors will gain a clear insight on the dominant players in this industry and their future forecasts. Furthermore, readers will get a clear perspective on the high demand and the unmet needs of consumers that will enhance the growth of this market.

Table of Content

Chapter One Humidity Sensor Industry Overview
1.1 Humidity Sensor Definition
1.1.1 Humidity Sensor Definition
1.1.2 Product Specifications
1.2 Humidity Sensor Classification
1.3 Humidity Sensor Application Field
1.4 Humidity Sensor Industry Chain Structure
1.5 Humidity Sensor Industry Regional Overview
1.6 Humidity Sensor Industry Policy Analysis
1.7 Humidity Sensor Industry Related Companies Contact Information




2016年7月26日星期二

Global Industry Analysis on Humidity Sensor Market, 2015 – 2021

Humidity sensors are sensors that convert the moisture content in air, gases, bulk materials or soil into an electric output signal. It is a humidity sensor device which is also known as hygrometer measures and regularly updates the relative humidity in air. It measures both air temperature and air moisture. Humidity sensor is composed of two metal plates with a non-conductive polymer film between them. The film collects moisture from the air which causes minute changes in the voltage between the two plates. Humidity sensors are generally used in textile machines, woodworking machines, printing and paper machines for measuring humidity in air.
Some of the major advantages of humidity sensors over conventional sensors low power requirement, easy implementation and betterment of transducer performance such as sensing elements, structure design, principle of mechanism, and fabrication technologies. Major disadvantages of humidity sensor market are high cost, frequent mirror contamination and insatiability under continuous use.
Miniaturization of electronic device is one of the major trend in the global humidity sensor market. Technology advancement and increasing demand in devices with high end feature are driving the market for humidity sensor. On the other hand continuous reduction in prices of sensors due to the introduction of more competitive technologies and higher associated costs are restraining the market growth. The humidity sensor market is segmented on the basis of unit of measurement, by product type, by application and by geography. On the basis of type the market is segmented into Relative humidity sensor and Absolute humidity sensor. Further, relative humidity sensor is further sub-segmented into ceramic, semiconductor and organic polymer processing and absolute humidity sensor are sub-segmented into solid moisture and mirror based sensor. On the basis of type humidity sensor is segmented into Thermoset sensor, thermoplastic sensor, bulk thermoplastic sensor, lithium chloride sensor and thermoset polymer capacitor sensor. Further on the basis of application the market is segmented into food industry, mining industry, cement industry and pharmaceutical industry. On the basis of geography the market is segmented into North America, Latin America, Western Europe, Eastern Europe, Asia-Pacific, Japan and Middle East & Africa

Key geographies evaluated in this report are:
• North America
o U.S
o Canada
• Europe
o France, Germany, Italy, Spain, and the UK
o Eastern Europe
o CIS
• APAC
o China
o India
o Japan
o Australia
o Others
• Latin America
o Argentina
o Brazil
o Others
Key features of this report
• Drivers, restraints, and challenges shaping the Humidity Sensor market dynamics
• Latest innovations and key events in the industry
• Analysis of business strategies of the top players
• Humidity Sensor market estimates and forecasts(2015 -2021)

ISweek(http://www.isweek.com/)- Industry sourcing & Wholesale industrial products

2016年7月25日星期一

Humidity Sensor Market 2016: Global Industry Insights, Statistics, Demand and forecasts to 2021

The 'Global and Chinese Humidity Sensor Industry, 2011-2021 Market Research Report' is the detailed comprehensive analysis of the current state of the global Humidity Sensor industry with a focus on the Chinese market. The report provides deep knowledge of historical information, forecasts, company profiles, technologies, market drivers, market trends and related parameters within the Humidity Sensor Industry. The report includes accurate and sharp information on global and Chinese market which would help to take better decisions and make positive paces for your association to possible micro levels. The report covers various sectors semiconductors, energy, pharmaceuticals, chemical, technology, food and beverages etc.

In the starting of the report provides overview of the industry including definition, products, applications, technology, its end users etc. Then, the report represents major payers of the Chinese market in at the intentional level. In this part, the report includes company profile, product stipulation, installed capacity, latest trend, competitor’s strategies, shifting product dynamics form the point of view of consumers and 2011-2016 market shares for each company. The reports represent statically data, generated revenue, production capacity, supply and demand, profit and loss, import and export and many more. The further market is segmented on basis of types, products, technology, end user, application, and geography whichever applicable for the competitive landscape analysis.

The report estimates 2016-2021 market resent trends for Humidity Sensor industry. Our aim provides deep and accurate analysis about the different topics related to Humidity Sensor industry. The report consists of detailed analysis of upstream and downstream demand, market dynamics, quantitative forecasting and forward-looking insight of the market.In the end, the report use stratified research methodology for a new project of Humidity Sensor Industry. The reports strive to serve the overall research requirement of clients for 2011-2021 global and Chinese Humidity Sensor industry. It is covering all important parameters to sustain in a competitive edge.


2016年7月22日星期五

Sensors in Smartphones: Galaxy S4 Adds Pressure, Temperature, and Humidity Sensors

Samsung recently launched their latest salvo in the smartphone wars, the Galaxy S4. Most tech writers couldn't decide whether they’d rather be bored by the phone or pan its ridiculous Broadway-style launch (see below, circa 17:20)—a little from column A, a little from column B, perhaps? We don’t write about every smartphone release, but this one caught our eye. The S4 includes a barometer, thermometer, and hygrometer (to measure humidity)—the first major smartphone to do so.
If you could care less about 13 megapixels on a smartphone camera but love to dream about the big data potential of smartphone sensors, these three are pretty cool additions. Temperature, pressure, and humidity are key weather station measurements.
Currently, smartphone or tablet users can buy external weather stations compatible with their devices. There’s even a selection of apps to record and analyze the data. But the only folks buying external weather stations are a few steps away from driving down Tornado Alley measuring wind speed and diameter of hail.
Bundle those humidity sensors into the top selling smartphone in the world, however, and it’s a different ballgame. Pair these sensors with a few compelling apps, and instead of tens of thousands of weather stations, researchers could hypothetically have millions inside a year. (Samsung shipped 215 million smartphones in 2012!)
Why couldn’t these sensors do for weather what Google Maps does for traffic?
As readers likely know, Google strips smartphone GPS data of personal information, assembles it, and sends it back to users as real-time traffic estimates. The results are increasingly accurate traffic forecasts and route time estimates—a serious improvent on chopper reports from the local radio station.
Using millions of smartphone data points, developers could knock out apps rendering detailed heat, humidity, and pressure maps and bundle them into weather apps. The data would be available at any given point in time, but maybe more powerfully, it would be available over time.
We’re talking billions of data points blanketing the globe each year. Climate studies might draw on smartphone data to inform their studies and reports. Why not?
The problem is, no one knows how accurate these new sensors are. The Galaxy S4 isn’t due out until May at the earliest. Further, unlike traffic-measuring GPS, for weather sensors to be useful, people will likely have to use them with the intent to measure. Mostly, smartphones are in climate-controlled rooms or pockets. Frankly, I’d rather not know the temperature, pressure, and humidity of my neighbor’s pants.
It seems almost inevitable, however, that more scientific sensors will become common in smartphones. As a side effect of the “specs” arms race, they could improve in quality dramatically. Not all these sensors will be used properly by every smartphone owner, but that’s the beauty of it. Manufacturers shipped 712 million new devices in 2012 alone. Even if weather bugs account for but 1% of that total, you've got seven million new mobile weather stations.

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2016年7月19日星期二

NEW Heated Humidity Sensor For Weather Measurements

Austrian sensor specialist E+E Elektronik will be introducing its new HMC03M heated humidity sensor at Meteorological Technology World Expo 2016.
The HMCO3M combines a silicon substrate, a capacitive humidity sensor and a heating resistor.
The heater is used for fast recovery after condensation or icing and is positioned all around the humidity sensor. This leads to uniform temperature throughout the structure and to best measuring performance in high-end weather observation.
The HMC03M has extremely short response times, even at very low temperature in the upper atmosphere, and outstanding linearity over the entire working range of 0 to 100 %RH and -80 to 120 °C (-112 to 248 °F).
The HMC03M is ideal for radiosondes and weather balloons.
E+E will also present its EE33-M transmitter, designed for reliable and long-term stable humidity and temperature measurement in high-end meteorology applications such as early detection of icy conditions.
It can calculate values such as dew point, frost point and wet bulb temperature, absolute humidity and enthalpy.
Thanks to the heated, monolithic humidity and temperature sensor and additional probe heating, the EE33-M is highly accurate (even close to 100 %RH) and recovers extremely fast after condensation, while the E+E proprietary coating protects the sensor against corrosive and electrically conductive pollution.
Visit E+E at the Meteorological Technology World Expo 2016 booth: 6020
Meteorological Technology World Expo 2016 is being held in Madrid Spain at Feria de Madrid, an event for any company or organisation looking for more accurate and next-generation weather forecasting and climate-change measurement technologies and services. Now in its sixth year, this global exhibition attracts over 165 exhibiting companies and 2,500+ attendees from over 70 countries. Meteorological Technology World Expo is organised by the publishers of Meteorological Technology International magazine.


2016年7月13日星期三

Low-humidity sensor based on a quartz-crystal microbalance coated with polypyrrole/Ag/TiO2 nanoparticles composite thin films

Novel low-humidity sensors were fabricated by the in situ photopolymerization of polypyrrole/Ag/TiO2 nanoparticles (PPy/Ag/TiO2 NPs) composite thin films on a quartz-crystal microbalance (QCM). The characterizations of the thin films were analyzed by scanning electron microscopy(SEM) and atomic force microscopy (AFM).

The sensitivity increased with the doping amount of TiO2 NPs. The PPy/Ag/50 wt% of TiO2 NPs composite thin films exhibited excellent sensitivity (0.0246 −[1]Hz/[1]ppmv at 171.1 ppmv), linearity (R2 = 0.9576) and a short response time(12 s at 55.0 ppmv). The low-humidity sensing mechanism was elucidated in terms of surface texture and the nanostructural morphology of the composite materials.

Additionally, based on the dynamic analysis of adsorption, the association constants of water vapor molecules with PPy/Ag and PPy/Ag/50 wt% TiO2 NPs composite thin films were estimated to be 81.6 and 227.9M−1, respectively, explaining the effect of adding 50 wt% TiO2 NPs to PPy/Ag; the sensitivity to low humidity increased as the association constant increased.


2016年7月11日星期一

Global Industry Analysis on Humidity Sensor Market, 2015 – 2021

Humidity sensors are sensors that convert the moisture content in air, gases, bulk materials or soil into an electric output signal. It is a humidity sensor device which is also known as hygrometer measures and regularly updates the relative humidity in air. It measures both air temperature and air moisture. Humidity sensor is composed of two metal plates with a non-conductive polymer film between them. The film collects moisture from the air which causes minute changes in the voltage between the two plates. Humidity sensors are generally used in textile machines, woodworking machines, printing and paper machines for measuring humidity in air.

Some of the major advantages of humidity sensors over conventional sensors low power requirement, easy implementation and betterment of transducer performance such as sensing elements, structure design, principle of mechanism, and fabrication technologies. Major disadvantages of humidity sensor market are high cost, frequent mirror contamination and insatiability under continuous use.

Miniaturization of electronic device is one of the major trend in the global humidity sensor market. Technology advancement and increasing demand in devices with high end feature are driving the market for humidity sensor. On the other hand continuous reduction in prices of sensors due to the introduction of more competitive technologies and higher associated costs are restraining the market growth. The humidity sensor market is segmented on the basis of unit of measurement, by product type, by application and by geography. On the basis of type the market is segmented into Relative humidity sensor and Absolute humidity sensor. Further, relative humidity sensor is further sub-segmented into ceramic, semiconductor and organic polymer processing and absolute humidity sensor are sub-segmented into solid moisture and mirror based sensor. On the basis of type humidity sensor is segmented into Thermoset sensor, thermoplastic sensor, bulk thermoplastic sensor, lithium chloride sensor and thermoset polymer capacitor sensor. Further on the basis of application the market is segmented into food industry, mining industry, cement industry and pharmaceutical industry. On the basis of geography the market is segmented into North America, Latin America, Western Europe, Eastern Europe, Asia-Pacific, Japan and Middle East & Africa.

Key points covered in the report
1) Report segments the market on the basis of types, application, products, technology, etc (as applicable)
2) The report covers geographic segmentation
North America
Europe
Asia
RoW
3) The report provides the market size and forecast for the different segments and geographies for the period of 2010 to 2020
4) The report provides company profiles of some of the leading companies operating in the market
5) The report also provides porters five forces analysis of the market.




2016年7月8日星期五

Visually readable and highly stable self-display photonic humidity sensor

A visually readable and highly stable self-display photonic humidity sensor has been fabricated through the fast magnetically induced self-assembly of carbon-encapsulated superparamagnetic colloidals, followed by an instant radical polymerization to fix the photonic crystal structures inside a polyacrylamide glycol gel matrix.

Because of the use of magnetic assembly and radical-polymerization, we can quickly and conveniently prepare the photonic humidity sensor on a large scale with arbitrary shape which has an important significance in large-scale industrial production. The photonic humidity sensor can self-display brilliant colors from navy blue to light red as the relative humidity changes from 11% to 97%. The whole shift of the reflection wavelength is nearly 160 nm, which almost covers the whole visual region and its intensity is readable by the naked eye.

In addition, cycle tests demonstrate that the photonic humidity sensor has a good stability and reproducibility in its diffraction signal. Therefore, coupled with low cost and no power consumption, the photonic humidity sensor system can realize colorimetric detection of humidity, similarly to pH indicator paper.


2016年7月7日星期四

Humidity sensors principle, mechanism, and fabrication technologies: a comprehensive review

Humidity measurement is one of the most significant issues in various areas of applications such as instrumentation, automated systems, agriculture, climatology and GIS. Numerous sorts of humidity sensors fabricated and developed for industrial and laboratory applications are reviewed and presented in this article.

The survey frequently concentrates on the RH sensors based upon their organic and inorganic functional materials, e.g., porous ceramics (semiconductors), polymers, ceramic/polymer and electrolytes, as well as conduction mechanism and fabrication technologies. A significant aim of this review is to provide a distinct categorization pursuant to state of the art humidity sensor types, principles of work, sensing substances, transduction mechanisms, and production technologies.

Furthermore, performance characteristics of the different humidity sensors such as electrical and statistical data will be detailed and gives an added value to the report. By comparison of overall prospects of the sensors it was revealed that there are still drawbacks as to efficiency of sensing elements and conduction values. The flexibility offered by thick film and thin film processes either in the preparation of materials or in the choice of shape and size of the sensor structure provides advantages over other technologies. These ceramic sensors show faster response than other types.


2016年7月6日星期三

What benefit does a humidity sensor give?

I'm buying an extractor fan for a bathroom with a new shower. I'm interested to find out what the benefit will be of doubling the cost of the unit to £160 of a humidity sensor?

I haven't got one but at a guess, the humidity sensor would be there to turn the fan on/off according to the humidity level to limit humidity and hence prevent/reduce condensation. So probably an advantage for rooms with humidity issues - bathrooms/showers, kitchens. Not much use where the fan is used purely to remove odours - toilets.

£160 sounds a lot, have you had a look online - Screwfix, Toolstation etc?

The benefit of a humidity sensing extractor fan, as opposed to a timer-based unit, is that it will only run when it's needed to get rid of the excess humidity following a shower.

Timer-based ones which are linked to the light switch (as is normal) will come on every time someone goes into the bathroom, even if there's no need for them to do so, leading to unnecessary noise and to the fan chucking nice warm air out of the house for no reason.

So, humidity sensor based ones will save money in fan running costs (fairly trivial), heating costs (slightly less trivial) and reduce unnecessary noise.

I'm not sure if that's worth £80.

Our en suite bathroom has a pull-cord extractor fan with a timer, so at least it only comes on when we choose to switch it on when having a shower.


2016年7月4日星期一

Design of a Humidity Sensor Tag for Passive Wireless Applications

This paper presents a wireless humidity sensor tag for low-cost and low-power applications. The proposed humidity sensor tag, based on radio frequency identification (RFID) technology, was fabricated in a standard 0.18 μm complementary metal oxide semiconductor (CMOS) process. The top metal layer was deposited to form the interdigitated electrodes, which were then filled with polyimide as the humidity sensing layer.

A two-stage rectifier adopts a dynamic bias-voltage generator to boost the effective gate-source voltage of the switches in differential-drive architecture, resulting in a flat power conversion efficiency curve. The capacitive sensor interface, based on phase-locked loop (PLL) theory, employs a simple architecture and can work with 0.5 V supply voltage. The measurement results show that humidity sensor tag achieves excellent linearity, hysteresis and stability performance. The total power-dissipation of the sensor tag is 2.5 μW, resulting in a maximum operating distance of 23 m under 4 W of radiation power of the RFID reader.

1. Introduction

Humidity measurement is essential for a wide range of applications in many fields including meteorology, agriculture, industrial control, medical instruments, etc. Humidity sensors usually measure relative humidity (RH) rather than absolute humidity. Relative humidity is the ratio of the moisture level to the saturated moisture level at the same temperature and pressure and expressed as a percentage.


2016年7月1日星期五

Positive impedance humidity sensors via single-component materials

Resistivity-type humidity sensors have been investigated with great interest due to the increasing demands in industry, agriculture and daily life. To date, most of the available humidity sensors have been fabricated based on negative humidity impedance, in which the electrical resistance decreases as the humidity increases, and only several carbon composites have been reported to present positive humidity impedance. However, here we fabricate positive impedance humidity sensors only via single-component WO3−x crystals. The resistance of WO3−x crystal sensors in response to relative humidity could be tuned from a negative to positive one by increasing the compositional x. And it was revealed that the positive humidity impedance was driven by the defects of oxygen vacancy. This result will extend the application field of humidity sensors, because the positive humidity impedance sensors would be more energy-efficient, easier to be miniaturized and electrically safer than their negative counterparts for their lower operation voltages. And we believe that constructing vacancies in semiconducting materials is a universal way to fabricate positive impedance humidity sensors.
Introduction
Resistivity-type humidity sensors, which can perceive and record the change in electrical resistance in response to that in environmental humidity, have been investigated with great interest due to the increasing demands in industry, agriculture and daily life. To date, most of the available humidity sensors have been fabricated based on negative humidity impedance, in which the electrical resistance decreases as the humidity increases. However, due to their lower operation voltages, positive humidity impedance sensors would be more energy-efficient, easier to be miniaturized and electrically safer than their negative counterparts. Thus they would have wider applications in protectors for integrated circuits from humidity, energy-efficient automatic air humidifiers, and so on. But so far only several carbon composites have been reported to present positive humidity impedance.
In sensing materials, semiconductor metal oxides are one of the most promising candidates for solid-state chemical sensors due to their high sensitivity, and quick response and recovery. Among them, tungsten oxides are very important semiconducting materials, finding applications in gas sensing together with photocatalysis and electrochromism. Focusing on gas sensors, tungsten oxides can be applied for a variety of gases, such as H2S, O2, NOx, COx, NH3 and so on. Particularly, the sensors for H2O (humidity) based on WO3 (the only reported tungsten oxide based sensors in literature) are WO3 nanowire humidity sensor on chip manufactured using CMOS-MEMS technique and WO3 thin-film sensor fabricated using deposition technology. But in most cases, they also functionalize in a composite, just like poly-2,5-dimethoxyaniline/WO3 composites, the mixture of Cr2O3 and WO3, and polyaniline/WO3 composites. And none of them exhibits positive-sensitive property to himidity. As for the sensing mechanism, the response of WO3 to relative humidity (RH) is generally attributed to the water dissociative chemisorptions process that would result in the formation of hydroxyl groups on the surface of WO3 crystals; and then, electrons are accumulated on the WO3 surface. As a result, the resistance of WO3 crystals decreases with increasing RH. To the best of our knowledge, no study focuses on the influence of oxygen vacancies density of metal oxides on humidity sensing property.
Furthermore, unlike most of the oxygen-deficient metal oxides, which are not stable (especially in humid condition), WO3−x crystals with a variety of oxygen-deficient stoichiometries, such as WO2.72, WO2.8, WO2.83 and WO2.9, can be easily prepared, since they are stable, ordered phases with precise stoichiometries. And the early studies revealed that oxygen vacancy can consistently account for the defect level and trap assisted conduction in semiconducting oxides. Among them, Gillet and co-workers even indicated that the density of oxygen vacancy in WO3 would be affected by water vapor when the experiments were performed in air. These facts inspire us to design and fabricate various WO3−x humidity resistors in which the different densities of oxygen vacancy might induce and modulate the humidity sensitivity.
Therefore, here we developed an approach to prepare oxygen-deficient tungsten oxides (WO3−x) nano-/micron-structures (NMS) only by heating WO3 powder in S atomsphere in a vacuum tube furnace, and with the structured WO3−x crystals, humidity sensors were fabricated simply by screen-printing them onto ceramic substrates with Ag-Pd interdigital electrodes. Surprisingly, a positive humidity-sensitive property was found in the sensors prepared by single-component WO3−x crystals with high density of oxygen vacancies. And the resistance of WO3−x crystal sensors in response to relative humidity could be tuned from a negative to positive one by increasing the compositional x. We believe that our method not only provides a new avenue for fabricating highly effective positive humidity sensors by various metal oxides, but also creates a powerful platform to understand and design desirable semiconducting oxides humidity sensors. In addition, the findings on the positive resistance characteristics of single-component material humidity sensors can not only extend the application of humidity-sensitive resistor in different types of miniaturized devices, but also enrich and compensate for the humidity-sensing principles.

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2016年6月27日星期一

Silver Nanoparticle Polymer Composite Based Humidity Sensor

Silver nanoparticles were synthesised by a chemical reduction process in order to produce an aqueous colloidal dispersion. The resulting colloids were then characterised by a combination of UV-Vis spectroscopy, dynamic light scattering, X-ray diffraction and transmission electron microscopy and the nanoparticles were found to have an average diameter of 20–22 nm.

The Ag/polymer nanocomposites were then applied to platinum interdigital electrodes as sensor coatings and the capability of the resulting sensor as a humidity detector investigated. With the application of 1 V, a current developed which was found to be directly proportional to humidity levels.

The humidity sensor gives a reversible, selective and rapid response which is proportional to levels of humidity within the range of 10% RH to 60% RH. An investigation into the mechanism of the sensor’s response was conducted and the response was found to correlate well with a second order Langmuir adsorption model.

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2016年6月25日星期六

Install a Humidity Sensor to Automatically Control Your Exhaust Fan

Exhaust fans help prevent mold and mildew in bathrooms and basements, but when left on, they waste electricity. Automate this process by installing a humidity sensor to replace the fan switch.

A humidity sensor includes a manual fan switch, but if your sensor is setup correctly it should turn on and off based on the humidity in the room. With most sensors you can also tell it how long it should run when it senses a certain level of humidity.

Installing a humidity sensor is a DIY project, but you must first determine if your switch box has a neutral wire, which is required to install a device like this. Watch the video above to check out the full instructions. The Leviton humidity sensor shown runs $31.49 from Amazon.

2016年6月24日星期五

New Research : Humidity Sensor Market, 2015 - 2021

Humidity sensors are sensors that convert the moisture content in air, gases, bulk materials or soil into an electric output signal. It is a humidity sensor device which is also known as hygrometer measures and regularly updates the relative humidity in air. It measures both air temperature and air moisture. Humidity sensor is composed of two metal plates with a non-conductive polymer film between them. The film collects moisture from the air which causes minute changes in the voltage between the two plates. Humidity sensors are generally used in textile machines, woodworking machines, printing and paper machines for measuring humidity in air.

Some of the major advantages of humidity sensors over conventional sensors low power requirement, easy implementation and betterment of transducer performance such as sensing elements, structure design, principle of mechanism, and fabrication technologies. Major disadvantages of humidity sensor market are high cost, frequent mirror contamination and insatiability under continuous use.

Miniaturization of electronic device is one of the major trend in the global humidity sensor market. Technology advancement and increasing demand in devices with high end feature are driving the market for humidity sensor. On the other hand continuous reduction in prices of sensors due to the introduction of more competitive technologies and higher associated costs are restraining the market growth. The humidity sensor market is segmented on the basis of unit of measurement, by product type, by application and by geography. On the basis of type the market is segmented into Relative humidity sensor and Absolute humidity sensor. Further, relative humidity sensor is further sub-segmented into ceramic, semiconductor and organic polymer processing and absolute humidity sensor are sub-segmented into solid moisture and mirror based sensor. On the basis of type humidity sensor is segmented into Thermoset sensor, thermoplastic sensor, bulk thermoplastic sensor, lithium chloride sensor and thermoset polymer capacitor sensor. Further on the basis of application the market is segmented into food industry, mining industry, cement industry and pharmaceutical industry. On the basis of geography the market is segmented into North America, Latin America, Western Europe, Eastern Europe, Asia-Pacific, Japan and 

Middle East & Africa
The key players dominating this market include Aptina Imaging Corporation, Autoliv Inc., Continental AG, Corrsys-Datron Sensorsystem GmbH, CTS Corporation, BEI Sensors, Kavlico Corporation, Delphi Corporation, Bourns Inc., Denso Corporation, Freescale Semiconductor Inc., GE Sensing & Inspection Technologies, Custom Sensors & Technologies Inc., Hamamatsu Photonics KK, Hamlin Electronics LP, Hella KGaA Hueck & Co., Hitachi Automotive Systems, Honeywell Sensing & Control, Infineon Technologies North America Corp., Melexis Microelectronic Integrated Systems N.V, Melexis Inc., Omron Corporation, OSRAM Opto Semiconductors GmbH, Robert Bosch GmbH, etc.

Key geographies evaluated in this report are:
North America
U.S
Canada
Europe
France, Germany, Italy, Spain, and the UK
Eastern Europe
CIS
APAC
China
India
Japan
Australia
Others
Latin America
Argentina
Brazil
Others

Key features of this report
Drivers, restraints, and challenges shaping the Humidity Sensor market dynamics
Latest innovations and key events in the industry
Analysis of business strategies of the top players
Humidity Sensor market estimates and forecasts(2015 -2021)





2016年6月20日星期一

Advanced platform for humidity and temperature sensors

Sensirion’s Platform3x consists of a group of humidity and temperature sensors with different precision levels and features.
The Platform3x is optimally designed for individual applications on the market. Whether for the cost-conscious, the groundbreaking or the high-end product that demands the best humidity sensor and temperature sensor, the Platform3x suits every discipline and provides a solution for all precision classes and various interfaces.
The SHT3x combines the strengths of the established SHT1x, the SHT2x and the advanced SHTC1 series in a single product. 
The SHT3x includes a user programmable alert function, where the sensor can be used as a humidity and temperature guard.
Moreover, Sensirion’s latest innovation contains an analogue ratiometric voltage output. This is the first fully calibrated and linear digital/analogue humidity and temperature sensor.
The SHT3x series thus combines multiple functions and various interfaces (I2C, voltage out) with a user-friendly, very wide operating voltage range (2.4 to 5.5 V). 
Like all sensors from Sensirion, the SHT3x is based on the CMOSens Technology. In addition, the technology enables a small footprint of 2.5 x 2.5 mm with a height of 0.9mm. So Sensirion has once again launched one of the smallest humidity sensors for applications over 2.4V. 


2016年6月17日星期五

Humidity sensor using cross-linked poly (chloromethyl styrene)

A resistive-type humidity sensor was prepared using a poly(chloromethyl styrene) (PCMS) film which was simultaneously cross-linked and quaternized. The impedance dependence on humidity for samples with various reaction degrees was measured. The sorption isotherm curves of water vapor in the cross-linked films were obtained using the quartz crystal microbalance method for the various samples. It was found that the degree of hysteresis depends on the density of the quaternary ammonium group, which affects the diffusion coefficient of the water molecules in the film.

oshiro Sakai received his BS degree in chemistry from Kyushu University in 1958. From 1958 until 1968 he was a research chemist at the Government Industrial Research Institute. In 1968 he was appointed Associate Professor in industrial chemistry at Ehime University. He received his Doctor of Science degree from Kyushu University for his studies on ESR of methacrylate radical in 1970. Since 1974 he has been Professor in the Department of applied Chemistry of Ehime University. His main interests are properties of functional polymers and applications in the field of chemical sensors.

Masanobu Matsuguchi received his BS and MS degrees in chemistry, from Kyushu University in 1984 and 1986, respectively. After graduating, he is now a lecturer in the Department of Applied Chemistry of Ehime University. In 1994, he received his Doctor of Science degree from Kyushu University of his studies on water sorption behavior in hydrophilic film. His research is on gas sensors using polymer materials.

Teruyuki Hurukawa received his B.E. and M.E. degree in applied chemistry from Ehime University in 1996 and 1998, respectively. He is now working for Nishikawa Rubber Industry.




Global Automotive Humidity Sensor Market 2016

Market.Biz has recently launched new Market Research Report on “Automotive Humidity Sensor Market” is a in-depth and professional survey on Automotive Humidity Sensor Market.

The research study Global Automotive Humidity Sensor Industry offers strategic assessment of the Global Automotive Humidity Sensor market. The industry report focuses on the growth opportunities, which will help the Global Automotive Humidity Sensor industry to expand operations in the existing markets.

Major Manufacturers Analysis of Automotive Humidity Sensor :-
(with Company Profile, Product Picture and Specifications, Sales Volume, Sales Revenue, Sale Price and Gross Margin and Contact Information)- Analog Devices, Inc., Continental AG, Delphi Automotive Plc, Epcos AG, Honeywell International Inc., Measurement Specialities Inc., Melexis NV, NXP Semiconductors, On Semiconductor Corporation, Robert Bosch GMBH, Sensata Technologies, Inc., Sensirion AG and Stmicroelectronics.

The study assess new product and service positioning strategies in the Global Automotive Humidity Sensor market. Furthermore, the new and evolving technologies and their impact on the Automotive Humidity Sensor market is analyzed in detail in this report.

After that, Automotive Humidity Sensor industry development policies as well as plans are discussed and manufacturing processes as well as cost structures for Automotive Humidity Sensor market. This report “Worldwide Automotive Humidity Sensor Market” also states import/export, supply and consumption figures and Automotive Humidity Sensor market cost, price, revenue and Automotive Humidity Sensor market’s gross margin by regions (United States, EU, China and Japan), as well as other regions can be added in Automotive Humidity Sensor Market area.

The leading players in the Global Automotive Humidity Sensor market have been profiled in this report. The key Automotive Humidity Sensor market players with their business overview, marketing strategies, strategic alliances and acquisitions are included in this Automotive Humidity Sensor market report. The report (Worldwide Automotive Humidity Sensor Market) features significant industry insights, Automotive Humidity Sensor market expectations, and key developments, which will help firms operating in the Automotive Humidity Sensor market to make informed business decisions.

Detailed business overview, Automotive Humidity Sensor market revenue analysis, strategies, and SWOT analysis of the key players has been included in the report. Players in the Global Automotive Humidity Sensor market are aiming to expand their operations to emerging regions. Further, companies in the Automotive Humidity Sensor market are focusing on innovation and positioning their products at competitive prices. An in-depth Automotive Humidity Sensor supply chain analysis in the report will give readers a better understanding of the Automotive Humidity Sensor market.

The report also delivers a detailed segment-based assessment of the Global Automotive Humidity Sensor market. The segments along with their sub-segments have been analyzed in this report. Furthermore, the report (Worldwide Automotive Humidity Sensor Industry) evaluates the trends that will help to fuel the growth of the individual sectors. The key segments of the Global Automotive Humidity Sensor market along with their market forecasts both in terms of revenue and volume have been covered in the Automotive Humidity Sensor market research study. The worldwide Automotive Humidity Sensor market report also talks about the emerging geographical sectors in Automotive Humidity Sensor market and the trends that will drive the industry across these regional segments.

ISweek(http://www.isweek.com/)- Industry sourcing & Wholesale industrial products


2016年6月12日星期日

Understanding the way that humidity sensors operate

 Humidity sensors receive different names such as moisture sensors, moisture or humidity analysers or hygrometers. However, no matter how they are called, what is important to know is that they perform a delicate monitoring activity that is in charge of controlling the humidity or moisture level present in a certain product, substance or environment.
Humidity analysers or sensors are extremely sensitive technical devices that are used in different and varied industrial processes where it is required to keep a constant and adequate moisture level in order to ensure that the final product keeps up with the quality standards.
The human and animal food industry, the wood industry, pharmaceutical and chemical companies as well as the leather manufacturing factories are well familiar with the humidity sensors and are also well aware of their importance. In fact, they know that a well operating hygrometer can make the difference between a tempting bowl of breakfast cereal and a gluey one or that a too wet manufacturing environment can severely damage the process of producing dog or cat food for your pets. In the wood industry, if the wood is too wet or too dry it can really damage the furniture making process and an inadequate moisture level can severely affect the effectiveness of a chemical compound.
There are different kinds of hygrometers and, of course, they come in different sizes so that they can adapt to every manufacturing process. Factory operators need to understand how these highly sensitive devices operate in order to know how to adjust them, how to interpret the results and be able to tell if everything is all right or is not.
Analog humidity sensors relies on a system based in a capacitor in order to measure the relative humidity in the air. The sensor is made of glass or ceramics, elements that are highly sensitive to humidity, and the insulator that is in charge of absorbing the water is made of a material that consists of a polymer that absorbs and releases water according to the relative humidity present in the selected environment. Thus, the insulator modifies the charge level in the capacitor and shows which is the moisture level so that it can be corrected if necessary.
Digital moisture sensors are more modern. They function with the help of two very little sensors that are adjusted to the relative moisture level present in the selected area.This pair of sensors are then turned into the digital format through a chip that is also placed in the circuit.

 ISweek(http://www.isweek.com/)- Industry sourcing & Wholesale industrial products

2016年6月10日星期五

Sensing mechanism of a porous ceramic as humidity sensor

Porous ceramics made from ceramic fiber, kaolin and sodium salt of carboxylmethyl cellulose (CMC) was investigated as a humidity sensor.

Ac impedance at a frequency of 100 Hz was utilized to measure resistance of samples under various humid atmospheres. The conductivity changed by about 4–5 orders of magnitude when the relative humidity (RH) varied from 10 to 90%. Other properties such as reproducibility and response time were also recorded and found satisfactory.

The sensing mechanism was discussed based on their microstructures, such as surface area, mesopore volume and sodium content. In general, at low humidity, surface area and water adsorption plays the dominant role, while at high humidity, mesopore volume and capillary condensation become important. Positive correlation exists between resistance and quantities of water taken up by the sample. Our results also indicated the key contribution from the extractable sodium at surface in promoting conductivity through water adsorption.

Kan-Sen Chou received his bachelor degree from National Taiwan University in 1972 and doctoral degree from Iowa State University in 1979. After working briefly at Ames Laboratory (USDOE), he joined the faculty of Chemical Engineering Department at National Tsing Hua University (NTHU), Hsinchu, Taiwan till date. His main research interests include ceramic powder processing, thin film deposition and various applications such as chemical sensor.

Tzy-Kuang Lee obtained his master degree from Chemical Engineering Department of NTHU in 1997. He carried out most of the experimental work reported in this article.
Feng-Jiin Liu is now both a doctoral candidate at Chemical Engineering Department of NTHU and also an instructor of Chemical Engineering Department at National Lien Ho College of Technology and Commerce, Miaoli, Taiwan. His principal research area is in the fabrication and application of porous ceramic materials.