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OCIEngine is an infrared spectrometer that measures Volatile Organic Compounds (VOC) in the air. It is specific to analyse a molecule of interest, such as ethanol.
These sensors are specific to analyze a particular gas among those:
Infrared radiation passes through the sensor’s measuring chamber. When air is introduced, the molecules of interest absorb part of the radiation, reducing the intensity of the optical signal. This measurement is then used to calculate the concentration of a specific gas following the Beer-Lambert law:
concentration = log10 (Intensity IR / Intensity zero IR) / Optical Length
Thanks to the heating chamber that is thermal stabilized, the measuring cell can operate with dry or wet gas without condensing and achieve good accuracy. The low mechanical profile and limited power consumption facilitates the integration into final device. Single or dual gas analysis can be selected and adapted to end-user application.
Exhaled air analysis
CO2 in breath analysis