The specifications of the lens decisively determine the optical path of the infrared thermometer, which is
characterized by the ratio Distance to Spot size. The spectral filter selects the wavelength range, which is
relevant for the temperature measurement. The detector in cooperation with the processing electronics
transforms the emitted infrared radiation into electrical signals.
The advantages of noncontact thermometry are clear - it supports:
• temperature measurements of moving or overheated
objects and of objects in hazardous surroundings
• very fast response and exposure times
• measurement without inter-reaction, no influence on the
• measuring object
• non-destructive measurement
• long lasting measurement, no mechanical wear
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