Component · Photonics, MEMS & Sensors
Gas sensor
A sensor that detects gas concentration through a change in the resistance of a heated metal oxide film, the absorption of infrared light at a characteristic wavelength, or an electrochemical reaction.
Selectivity and drift are the recurring challenges.
- Also known as
- MOX sensor, NDIR sensor, VOC sensor
- Type
- Component
- Domain
- Photonics, MEMS & Sensors, Sensors
Notes
Micro-hotplate MEMS structures made metal oxide sensors low-power enough for phones and wearables.
Related terms
- Humidity sensor
- MEMS
- Temperature sensing
- Air quality monitoring
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