Gas sensors based on Non-Dispersive Infrared (NDIR) techniques have
continuously gained in popularity over the past decades.
A
number of clear trends in gas sensor design are visible today – gas sensors are
getting smaller, consuming lesser power, and unit sensor cost is decreasing.
NDIR gas sensing technology continues to build on the potential to complement
and replace conventional gas measurement technologies, such as Electrochemical,
PID, TCD, etc.
Axetris
Infrared Sources based on thin film technology help gas sensor designers
capitalize on these trends.
Smaller
The trend to miniaturize gas sensors is driven by increasing demand for portable implementation. Though NDIR gas sensors have continuously shrunk in size over the years, this trend is expected to further accelerate with increased adoption of gas sensors in mobile, wearable and IoT (internet of Things) applications.
The trend to miniaturize gas sensors is driven by increasing demand for portable implementation. Though NDIR gas sensors have continuously shrunk in size over the years, this trend is expected to further accelerate with increased adoption of gas sensors in mobile, wearable and IoT (internet of Things) applications.
Axetris
offers the EMIRS50 product line of Infrared Sources, where the emitting area is
a tiny 0.8x0.8 mm2. The EMIRS50 products have been designed
especially for use in miniature gas sensors.
Leaner
Parallel to the trend towards miniaturization of gas sensors, the demand to decrease power consumption for battery-based use has intensified. Today, gas sensors are being developed which use a few milliwatts of power during normal operation.
Parallel to the trend towards miniaturization of gas sensors, the demand to decrease power consumption for battery-based use has intensified. Today, gas sensors are being developed which use a few milliwatts of power during normal operation.
Axetris
Infrared Sources have a very short time constant which enables the possibility
to use a very short duty cycle. This means, that a meaningful signal for gas
concentration can be generated, even at very low nominal power. At the same
time, the black platinum emissivity layer used in Axetris Infrared Sources
delivers high electrical/optical efficiency.
Cost-Effective
For high-volume gas sensor applications in the automotive industry or for wearable devices, a very low unit sensor cost is a prerequisite.
For high-volume gas sensor applications in the automotive industry or for wearable devices, a very low unit sensor cost is a prerequisite.
Axetris Infrared Sources are manufactured using a wafer-based fabrication
process. This allows for ease of production scalability, enabling very low unit
costs at high volumes.
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