Working Principle of Optical Gas Imaging

Optical gas imaging is a kind of infrared technology that could see invisible industrial gases.

All objects in nature whose temperature is higher than absolute zero (-273.15°C) can emit infrared radiation. The intensity of infrared radiation depends on the target temperature. The infrared thermal camera converts invisible infrared radiation into visible infrared images according to the temperature difference or radiation difference between the target and the background or between various parts of the target.

After absorbing infrared radiation at specific wavelengths, infrared radiation difference will cause between the gas and the background. 

The gas leak detection infrared detector with built-in narrowband filter only receives the infrared band near the gas infrared absorption peak, and can convert the gas into visible infrared images through the radiation difference between the gas and the background. 

The optical gas imaging camera can quickly detect the gas without temporarily stopping the production line by identifying the infrared radiation difference between the gas and the background and visualizing the gas whether the leakage exists, and accurately locate the leakage source.

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