RayTek 54301 operating instructions 4Basics

Basics
4Basics
4.1MeasurementofInfraredTemperature
AllsurfacesemitinfraredradiationTheintensityofthisinfrared
radiationchangesaccordingtothetemperatureoftheobject.
Dependingonthematerialandsurfaceproperties,theemitted
radiationliesinawavelengthspectrumofapproximately1to20μm.
Theintensityoftheinfraredradiation(”heatradiation”)isdependent
onthematerial.Formanysubstancesthismaterial‐dependent
constantisknown.Thisconstantisreferredtoasthe”emissivity
value”.
Infrared