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Basics of Infrared Thermometry

thermoIMAGER TIM 64

Basics of Infrared Thermometry

Depending on the temperature each object emits a certain amount of infrared radiation. A change in the

temperature of the object is accompanied by a change in the intensity of the radiation. For the

measurement of “thermal radiation” infrared thermometry uses a wave-length ranging between 1 μ and

20 μm.

The intensity of the emitted radiation depends on the material. This material contingent constant is

described with the help of the emissivity which is a known value for most materials (see enclosed table

emissivity).

Fig. 11.1 The electromagnetic spectrum with for pyrometers used infrared area

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MICRO-EPSILON TIM 160 Spezifikationen Seite 64