The thermal radiation of objects is found behind the visible red spectrum of light.
This range is called the infrared wavelength range.
Infrared cameras are used to make the temperatures of the “thermal radiation” (wavelength between 1µm and 20µm) visible.
The camera consists of a lens, a spectral filter, the detector (sensor) and appropriate electronics for amplification, linearization and corresponding signal processing.
Infrared cameras are used in many areas, because they allow the measurement of difficult to access or moving objects with short measurement and response times.
During the measurement there is no influence on the object to be measured.
In the field of plastics technology, infrared cameras are used, for example, for testing and monitoring the injection molding process.
Principle structure of an infrared camera
(1) measuring object
(2) lens
(3) spectral filter
(4) detector
(5) electronic
(6) display or communication
Infrared camera for use in manufacturing
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