Machinery & Equipment
Non-Dispersive Infrared (NDIR) Sensor
Infrared (IR) techniques are very popular in gas detection technology since many gases have characteristic vibration/rotation absorption spectra with narrow, non-overlapping bands in the infrared spectrum between 2 μm and 20 μm. Key to this process is the selection of the correct absorption wavelength for measurement. The wavelengths from the optical source can be separated spatially using prisms or diffraction gratings. This is known as dispersive separation. Alternatively,…
- Types
- NDIR CO2 Sensors · NDIR Methane (CH4) Gas Sensors · NDIR CO Sensors
- Applications
- Industrial Security · Environmental Protection · Medical
5 editions31 December 2025