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Non-Dispersive Infrared (NDIR)

How it works

Non-Dispersive Infrared (NDIR) sensors detect gas concentrations by measuring the absorption of infrared light at specific wavelengths. A light source emits infrared light through a gas sample. The target gas absorbs light at certain wavelengths, reducing the intensity detected by a sensor. By comparing this intensity with a reference wavelength, the gas concentration is determined. NDIR sensors are widely used for detecting gases like CO2, as they offer high accuracy and stability without requiring moving parts.

Advantages

  • High Accuracy: NDIR sensors provide precise gas concentration measurements, especially for gases like CO2 and methane.

  • Long-Term Stability: They maintain accuracy over time with minimal calibration needs.

  • Selective Measurement: NDIR targets specific gas wavelengths, reducing cross-sensitivity to other gases.

  • Durability: No moving parts make NDIR sensors robust and reliable in harsh environments.

  • Low Maintenance: Minimal wear and tear result in lower maintenance costs.

  • Fast Response: Quick detection and measurement of gas concentrations.

Enquire now

SensorX Solutions GmbH

Qubo Business Park

Kägiswilerstrasse 17

6060 Sarnen, Switzerland

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