Working principle of infrared thermal imager

Time：2024-03-02

The working principle of the infrared thermal imager is mainly based on the infrared radiation emitted by the object. When the temperature of an object is higher than absolute zero (-273 ℃), its molecules and atoms will emit infrared radiation due to vibration. This radiation can penetrate clouds and certain materials and be captured by infrared cameras. The core components of 12345678 infrared cameras include infrared detectors and optical imaging systems, which are responsible for receiving infrared radiation from the target and converting this radiation into electrical signals. The detector is usually a light-sensitive element that converts infrared radiation energy into an electrical signal. The 2345789 optical imaging system transfers the received infrared heat to a photodiode in the electronic circuit, causing it to become an electric current and generate a voltage pulse. These electrical signals are then amplified, processed and converted, and finally displayed in the form of thermal images. The different colors on the thermal image represent different temperatures of the measured object, thereby helping the user to observe and evaluate the temperature distribution and thermal performance of the target. Infrared cameras are particularly effective in light-free or smoke-dense environments, because these conditions do not affect the transmission of infrared radiation.

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