Self Contained Sensor Analog Proximity Sensor - RPS-150A

· Adjustable Zero & Span
· Broad Sensing Beam
· Range 2 to 40″ or 5 to 80″
· LED Strength Indicator
· Analog Current & Voltage Outputs
· Selectable Inverted & Non-Inverted Outputs
· Short Circuit & Reverse Polarity Protected
· Limit Switch Style Housing

• Model Number: RPS-150A
• Data Sheet:
• category： Sensors| ultrasonic sensor

Product Specification

RPS-150A Self Contained Sensor
Analog Proximity Sensor
Max Range: 80 Inches

Features
· Adjustable Zero & Span
· Broad Sensing Beam
· Range 2 to 40″ or 5 to 80″
· LED Strength Indicator
· Analog Current & Voltage Outputs
· Selectable Inverted & Non-Inverted Outputs
· Short Circuit & Reverse Polarity Protected
· Limit Switch Style Housing

RPS-150A Overview
The RPS-150A analog ultrasonic sensor is mounted in a limit switch style housing and is completely self contained. It is powered by 20-30VDC, and is reverse polarity protected. It also has a wide beam angle which enables it to detect a target that is not at right angles. A flat target can tilt up to 35 degrees and still be detected. The RPS-150A has 2 short circuit protected analog outputs, 4-20mA and 0-10VDC. These outputs can easily be inverted and can be scaled over almost any range by means of adjusting the zero & span control. For set-up purposes an LED signal strength indicator is provided. The RPS-150A ultrasonic sensors can be used as level control devices for liquid level and bulk materials.

This LED is green when not detecting and fades to RED as a target moves into place, depending on how much reflected signal is coming back from the target. The frequency of operation is 38.5kHz. There are two ranges available in this model 2″ to 40″ or 5″ to 80″. It also features a quick disconnect (QD) receptacle. The housing is constructed of PBT plastic and has standard 30mm x 60mm limit switch mounting dimensions as well as side holes for mounting the sensor on its side.

Specifications

RPS-3000PVC & RPS-4000 Ultrasonic Level Sensor - RPS-3000PVC / RPS-4000

· Simple Calibration
· Non-Contact
· Temperature Comp.
· Sensitivity Control
· Level Sensor
· Self-Contained
· LED Indicator
· Quick Disconnect
· Level Control
· Microprocessor Design

• Model Number: RPS-3000PVC / RPS-4000
• Data Sheet:
• category: Sensors| ultrasonic sensor

Product Specification

RPS-3000PVC & RPS-4000 Ultrasonic Level Sensor
Features
· Simple Calibration
· Non-Contact
· Temperature Comp.
· Analog 4-20mA Output
· Sensitivity Control
· Level Sensor
· Self-Contained
· LED Indicator
· Quick Disconnect
· Level Control
· Microprocessor Design

These self-contained Ultrasonic Sensors provide level control of both liquid and bulk materials. This gives the user a viable alternative to bubblers, floats, capacitance probes, and pressure transmitters.

With sensing ranges of 30 and 40 feet respectively many tanks are within reach. Their incorporation of a microprocessor design makes it possible to achieve signal conditioning. This gives the sensor the ability to process the return ultrasonic echo and distinguish between false targets and real targets.

With the incorporation of a microcontroller into the design of the RPS-3000PVC and RPS-4000 many of the common problems facing long range sensing applications have been overcome. Software was then written to optimize the performance characteristics of the sensors. The artificial intelligence analyzes and conditions the return ultrasonic echo. This process filters out any false echoes and electrical noise. An additional task that the microcontroller does is temperature compensation.

Specifications

MB1261 XL-MaxSonar-EZL1 High Performance Ultrasonic Rangefinder - isweek

● Same beam pattern as the MB1210
● Long range of 1068cm to large targets
● Low power consumption
● Easy to use interface
● Detects smaller objects
● Requires use of less sensors to do same job
● Can detect people up to approximately 11 feet
● 3.3v to 5v operational voltage

• Model Number: MB1261
• Data Sheet:
• category: Sensors&Transmitters| ultrasonic sensor

Product Specification

MB1261
XL-MaxSonar-EZL1
High Performance Ultrasonic Rangefinder

Product Description
The XL‑MaxSonar‑EZL1 offers a lower hardware gain and a smaller, narrower detection zone than the MB1260. This makes the XL‑MaxSonar‑EZL1 a great choice for people detection applications. In addition to detecting small objects, the XL‑MaxSonar‑EZL1 can also detect large targets to the extended range of 1068 cm (420 inches).

MB1261 Features and Benefits
● Same beam pattern as the MB1210
● Long range of 1068cm to large targets
● Low power consumption
● Easy to use interface
● Detects smaller objects
● Requires use of less sensors to do same job
● Can detect people up to approximately 11 feet
● 3.3v to 5v operational voltage

MB1261 Applications and Uses
● Great for people detection
● Security
● Motion detection
● Used with battery power
● Autonomous navigation
● Educational and hobby robotics
● Collision avoidance
● Long range detection

Product Specifications
● Resolution of 1 cm
● 10Hz reading rate
● 42kHz Ultrasonic sensor measures distance to objects
● RoHS Compliant
● Read from all 3 sensor outputs: Analog Voltage, RS232 Serial, Pulse Width
● Virtually no dead zone, objects closer than 25 cm range as 25 cm
● Operates from 3.3-5.5V
● Low 3.4mA average current requirement
● Small, light weight module
● Designed for easy integration into your project or product
● Operational Temperature from 0˚C to +65˚C (32˚F to +149˚F)
● Real-time automatic calibration (voltage, humidity, ambient noise)
● Firmware filtering for better noise tolerance and clutter rejection
● 200,000+ Hours Mean Time Between Failure
● Wide and sensitive beam, detects small targets to significant distances
● Maximum range of 1068 cm (420 inches)
● Hardware gain of 2000
● Long range, medium detection zone for small targets

how many different  sensors are available inside a smartphone?

There are many sensors available inside a Smartphone.
1. Proximity Sensor

Optoprox Proximity Sensor

Name:Optoprox Proximity Sensor
Model:OptoProx Series
Switching Distance from Sensor Face to Target:10mm

A proximity sensor is a sensor able to detect the presence of nearby objects without any physical Scansiona il QrCode per vedere il profilo Contact di {name} e clikka per creare il tuo GRATIS is comprised of an infrared LED and an IR light detector. It is placed near the earpiece of a phone, and for a good reason – when you place the handset up to your ear, the sensor lets the system know that you're most probably in a call and that the screen has to be turned off. The sensor works by shining a beam of invisible to humans infrared light which is reflected from a nearby object and picked up by the IR detector.

2. Light sensors




A phone's light sensor is what measures how bright the ambient light is. The phone's software uses this data to adjust the display's brightness automatically – when ambient light is plentiful, the screen's brightness is pumped up, and when it is dark, the display is dimmed down. An interesting fact is that high-end Samsung Galaxy phones use an advanced light sensor that can measure white, red, green, and blue light independently. And that's not overkill. In fact, the Adapt Display feature uses this data to fine tune image representation.


3. Barometer sensor

Smart Precision Barometer and Altimeter

Application Examples
High Accuracy Altimetry
Smartphones / Tablets
GPS Dead Reckoning
Map Assist, Navigation
Weather Station Equipment

Higher-end phones have a built-in barometer – a sensor that can measure atmospheric pressure. Data measured by it is used to determine how high the device is above sea level, which in turn results in improved GPS accuracy.This sensor is really cool

4. Magnetometer

The digital compass that's usually based on a sensor called magnetometer provides mobile phones with a simple orientation in relation to the Earth's magnetic field. As a result, your phone always knows which way is North so it can auto rotate your digital maps depending on your physical orientation.

5.Hall Sensor:

A Hall effect sensor is a transducer that varies its output voltage in response to a magnetic field. Hall effect sensors are used for proximity switching, positioning, speed detection, and current sensing applications.
The main function of this proximity sensor is to detect how close your smartphone's screen is to your body. When you use your smartphone, it detects the position of ear with respect to screen and turns off the light of screen and saves battery. Also proximity sensor stops the accidental touch, unwanted input during talk. This sensor also detects the signal strength, interference sources and amplify or filter by use of Beam Forming Technique. Thus, in a nutshell, proximity sensor detect the presence of body like cheek, face or ear and stops the web surfing, music or video during talk/calling and save the battery. After the conversation, it resumes the same function which was stopped earlier during talk.

Animated Hall effect

Discovery :It was discovered by Edwin Hall in 1879.
wikilink for Hall effect: Wikipedia

6.Accelerometers:

Accelerometers (Gravity Sensors)are  devices that can measure acceleration (the rate of change in velocity),  but in smartphones, they're able to detect changes in orientation and  tell the screen to rotate. Basically, it helps the phone know up from  down.

All accelerometers have two fundamental parts:
1. A housing attachment to the object  whose acceleration we want to measure.
2. A mass that, while tethered  to the housing, can still move.

For example assume a spring and a heavy ball. If you move the housing up, the ball lags behind stretching the spring.  If we measure how much that spring stretches, we can calculate the force  of gravity.

Inside the smartphone accelerometer chip, engineers have created a tiny accelerometer out of  silicon. It has, of course, a housing that's fixed to the phone, and a  comb-like section that can move back and forth. That's the seismic mass  equivalent to the ball. The spring in this case is the flexibility of  the thin silicon tethering to the housing. Now clearly, if we can  measure the motion of this central section we can detect changes in  orientation.
The motion of the springs causes a change in value of capacitance which is sensed by a sensor which scales it to current signals to communicate with the brain of the smartphone.
And all of this happens in a matter of a microseconds !! :P

7.Gyroscope:

The gyroscope is a sensor that can provide orientation information as well, but with greater precision. Thanks to this particular sensor, Android's Photo Sphere camera feature can tell how much a phone has been rotated and in which direction. It is also used by Google's Sky Map for telling what constellation you're pointing a phone at.


8.Thermometer:

Some folks might remember that the Samsung Galaxy S4 bragged with a thermometer for measuring ambient temperature. However, there's a thermometer in pretty much any smartphone, and some handsets might have more than one of them. The difference is that they're used to monitor the temperature inside the device and its battery. If a component is detected to be overheating, the system shuts itself down to prevent damage. And speaking of the Galaxy S4, it pioneered the use of an air humidity sensor in a smartphone. Data provided by it was used in the S Health application to tell whether or not the user was in their "Comfort Zone" – one with optimal air temperature and humidity.

Sensor Availability

While sensor availability varies from device to device, it can also vary between Android versions. This is because the Android sensors have been introduced over the course of several platform releases. For example, many sensors were introduced in Android 1.5 (API Level 3), but some were not implemented and were not available for use until Android 2.3 (API Level 9). Likewise, several sensors were introduced in Android 2.3 (API Level 9) and Android 4.0 (API Level 14). Two sensors have been deprecated and replaced by newer, better sensors.
below Table  summarizes the availability of each sensor on a platform-by-platform basis. Only four platforms are listed because those are the platforms that involved sensor changes. Sensors that are listed as deprecated are still available on subsequent platforms (provided the sensor is present on a device), which is in line with Android's forward compatibility policy.

What IS Mass flow sensor and How Often Does the Mass Air Flow Sensor Need to Be Replaced?

A mass (air) flow sensor (MAF) is used to find out the mass flowrate of air entering a fuel-injected internal combustion engine.

• 
  

  FS7002 Mass flow/clog sensors

  FS7002 series mass flow/clog sensors can be used for open air space flow measurement or applied for clog sensing in an open space configuration.

The air mass information is necessary for the engine control unit (ECU) to balance and deliver the correct fuel mass to the engine. Air changes its density as it expands and contracts with temperature and pressure. In automotive applications, air density varies with the ambient temperature, altitude and the use of forced induction, which means that mass flow sensors are more appropriate than volumetric flow sensors for determining the quantity of intake air in each cylinder. (See stoichiometry and ideal gas law.)
There are two common types of mass airflow sensors in use on automotive engines. These are the vane meter and the hot wire. Neither design employs technology that measures air mass directly. However, with additional sensors and inputs, an engine's ECU can determine the mass flowrate of intake air.
Both approaches are used almost exclusively on electronic fuel injection (EFI) engines. Both sensor designs output a 0.0–5.0 volt or a pulse-width modulation (PWM) signal that is proportional to the air mass flow rate, and both sensors have an intake air temperature (IAT) sensor incorporated into their housings for most post OBDII vehicles. Vehicles prior to 1996 could have MAF without an IAT. An example is 1994 Infiniti Q45.
When a MAF sensor is used in conjunction with an oxygen sensor, the engine's air/fuel ratio can be controlled very accurately. The MAF sensor provides the open-loop controller predicted air flow information (the measured air flow) to the ECU, and the oxygen sensor provides closed-loop feedback in order to make minor corrections to the predicted air mass. Also see MAP sensor.
How Often Does the Mass Air Flow Sensor Need to Be Replaced?

• 
  

  Mass Flow Sensors

  FS1015 Series can measure a flow up to 150 SLPM. ISO-15mm connection model is readily applicable to ventilators and/or anesthesia equipments.

The mass air flow sensor is quite a complex little component of multiport fuel injection systems with a critical role in the performance of your engine. Not only does it work hard, but it’s rather fragile due to its design. Because of this fact, it may need to be replaced at some point.

The design and function of the mass air flow sensor

To understand the reason for replacement, you need to know how this mass air flow (MAF) sensor works. The MAF features a sensing element, which tells how much air is flowing through. This element is made either of platinum wire and called a hot wire design or nickel foil grid with the tile of a hot film design. Both are delicate and may be damaged if you try to clean them. For this reason, it’s better to replace the sensor than to attempt to clean it and continue using it.
The MAF sensor measures the amount of air that comes into the system. It provides this information to the engine computer, allowing the system to adjust the amount of fuel needed to maintain the correct ratio.

Why an MAF sensor needs to be replaced

If the sensor gets dirty, it won’t be able to read the airflow. When the MAF sensor doesn’t work, the engine may idle roughly, hesitate, and have difficulty starting. It may even stall on you while driving, which is no fun.
The most common cause for the sensor to become dirty is an air filter that doesn’t get replaced when needed. When the air filter is clogged, it allows more dirt and debris to slip by and accumulate on the sensor. Routine maintenance and air filter replacement can extend the life of your MAF sensor and ensure it continues to work correctly. While the exact timing varies based on where and how much you drive, a good rule to follow is every 10,000 to 12,000 miles.
Industry Sourcing - isweek.com | Wholesale Industrial Products

CO2 Oxygen Sensor

Reading CO2 and oxygen levels in remote areas can be challenging. That's why we were excited to see S8 CO2 sensor and UV Flux oxygen sensor installed on a drone for high-altitude atmospheric testing.
The project is the brainchild of RYF Technologies. Last year, they began testing CO2 sensors to create a handheld CO2 monitor for the Chilean market. A requirement for the new monitor was that it used a built-in barometric sensor to automatically adjust the CO2 level for extreme changes in altitude in the Andes Mountains. The monitor uses a built-in micro pump to quickly change the air around the sensor and improve response time as measurements are taken.
Once the prototype was complete, RYF decided to change to our low-power S8 CO2 Sensor. The S8 is one of the smallest non-dispersive infrared (NDIR) sensors on the market, and is able to measure CO2 levels up to 5% in a very small and low-power package.
In addition to measuring CO2, the monitor was upgraded to measure oxygen using our UVFlux Oxygen Sensor. This low-power sensor is specifically designed for battery powered applications. Temperature and relative humidity sensors were also installed.
The final step in the project was to install the complete package in an off the shelf drone. In field testing, the package has been successfully proven to record CO2, oxygen, temperature, humidity and barometric pressure in real time up to 500 meters (1,640 feet) from the controller. This will make the new drone useful for scientific environmental analysis and studies in cities, fires, volcanos, factory chimneys, or anywhere not easily accessible for field air quality testing.
All sensor data is collected, processed and stored using custom software developed and prototyped on an Arduino microprocessor.
The completed drone package is still a prototype. New case designs are being created and tested at RYF Technologies using their in-house 3D printer.