Cubic NDIR CH4 Sensor Solutions For Industrial Safety And Environmental Monitoring

Monitoring methane is crucial. Methane gas poses both a potential risk of fire and explosion and serves as a major component of greenhouse gases, significantly impacting the environment. Timely monitoring of methane concentration can effectively prevent accidents, reduce greenhouse gas emissions, and safeguard both personnel safety in many industries.

Cubic, a manufacturer of gas sensors and gas analyzers, has leverage its mature NDIR technology to develop miniature NDIR CH4 sensor SJH Series, widely applicable in various scenarios where flammable and explosive gases exist.

NDIR Principle

Non-dispersive infrared (NDIR) gas sensing technology relies on Lambert-Beer's law, where each gas absorbs specific infrared wavelengths. An infrared source emits a beam through the gas sample chamber, and a detector measures the absorption at characteristic wavelengths. Using embedded software algorithms, the gas concentration is determined. The term "non-dispersive" means the wavelength is not pre-filtered.

Different gases have unique absorption spectra based on their molecular structure. Overlapping absorption peaks can cause interference, as can moisture in the wavelength range. Effective NDIR gas measurement requires addressing cross-interference, temperature and humidity effects, and component noise, which involves integrating gas path, circuitry, optical design, and software algorithms.

Cubic Miniature NDIR CH4 Sensor

Cubic miniature NDIR CH4 sensor SJH Series is a versatile intelligent infrared gas sensor that detects flammable gases present in the air. It exhibits excellent selectivity, stable performance, and long lifespan, with built-in temperature compensation. Cubic miniature NDIR sensor CH4 SJH Series is a compact, high-performance sensor created by tightly integrating mature infrared absorption gas detection technology with micro-mechanical processing and exquisite circuit design.