MICRO-EPSILON TIM 160 Dokumentacja Pobierz pdf (Strona 70)

Emissivity

12.3

thermoIMAGER TIM 70

Characteristic Emissivities

In case none of the methods mentioned above help to determine the emissivity you may use the

emissivity tables ►Appendix A and B. These are average values, only. The actual emissivity of a material

depends on the following factors:

• temperature

• measuring angle

• geometry of the surface

• thickness of the material

• constitution of the surface (polished, oxidized, rough, sandblast)

• spectral range of the measurement

• transmissivity (e.g. with thin films)

Fig. 12.5 Setting of the emissivity in the software TIM

Connect under the menu configuration (device)

1 2 ... 65 66 67 68 69 70 71 72 73 74 75 ... 79 80

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MICRO-EPSILON TIM 160 Dokumentacja Strona 70