LumaSense Technologies M67 - Manual (Page 10)

M67, M67S Manual
9
4.2 Application to temperature measurement
Only, thermal radiation from the object being measured should enter the INFRADUCER. Otherwise, the electrical current
generated by the infrared detector will no longer be dependent strictly on the temperature of the object in question. Thus, it is
important to shield the instrument if necessary from extraneous sources of thermal radiation.
The method used to ensure minimal radiation interference in the INFRADUCER is to employ an optical focusing
system. This concentrates the energy from a spot located on the surface of the target, on to the detector in the instrument.
Should any extremely hot objects lie immediately behind or in front of small targets, shielding may become necessary. These
considerations are discussed further in section 5, page 10 of this manual.
Finally, the design of the INFRADUCER allows selection of the spectral response range, expressed in terms of the range of
wavelengths over which most of the radiation is received, depending on the temperature range and characteristics of the target.