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A nondispersive infrared sensor (or NDIR sensor) is a simple spectroscopic sensor often used as a gas detector.It is non-dispersive in the fact that no dispersive element (e.g a prism or diffraction grating as is often present in other spectrometers) is used to separate out (like a monochromator) the broadband light into a narrow spectrum suitable for gas sensing.
A carbon dioxide sensor or CO 2 sensor is an instrument for the measurement of carbon dioxide gas. The most common principles for CO 2 sensors are infrared gas sensors ( NDIR ) and chemical gas sensors.
Electrolyte–insulator–semiconductor sensor; Energy-dispersive X-ray spectroscopy; Fluorescent chloride sensors; Holographic sensor; Hydrocarbon dew point analyzer; Hydrogen sensor; Hydrogen sulfide sensor; Infrared point sensor; Ion-selective electrode; ISFET; Nondispersive infrared sensor; Microwave chemistry sensor; Morphix Chameleon ...
Carbon monoxide (CO) and carbon dioxide (CO 2) are measured by non-dispersive infrared (NDIR) light absorption based on the Beer-Lambert law. [49] CO can also be measured using electrochemical gel sensors and metal-oxide semiconductor (MOS) detectors, which are used in household carbon monoxide detectors. [50]
The design from 1975 (pictured above) is a Nondispersive infrared sensor. It is the first improved analyzer that is able to detect more than one component of a sample gas at one time. Earlier analyzers were held back by the fact that a particular gas also has lower absorption bands in the infrared.
Depending on the application, the sensitive but less selective sensor is either acoustic or non-imaging electro-optical. The selective sensor is forward looking infrared radiation (FLIR). Electro-optical components of Rocket Launch Spotter system. RLS uses two TADIRCM sensors, an INU, and a smaller field-of-view single-color (FLIR) camera on ...
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