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The power consumed by the CO2 sensor depends on several interrelated factors. Attached application note describes the fundamentals that underpin the low power design of GSS sensors and how to calculate the power consumption of each device.
All GSS sensors use a technique called non‐dispersive infra‐red (NDIR) sensing where light is injected into the optical measurement chamber, which contains the gas of interest. The light that passes through the optical cavity is detected by the photo diode. The signal from the photo‐diode is digitised by the microcontroller and compared with a reference level stored in memory. The microcontroller can then calculate the level of CO2 in the optical measurement chamber. The power consumed by the CO2 sensor depends on several interrelated factors.
Gas Sensing Solutions the specialists in CO2 sensing. GSS its in-house engineering and technical teams have many years’ experience in solid-state carbon dioxide gas sensor development.