Radiometric sensor device for non-contact temperature measuring and method for radiometric, contactless temperature monitoring of a sensing zone

摘要

The invention relates to a radiometric sensor device for contactless temperature measurement in a detection area (5), which comprises: an antenna (2) for the reception of radio - and / or microwave radiation (r) and outputting of a microwave signal (s1) and means (3, 4, 8) for receiving and evaluation of the microwave signal (s1) and outputting an output signal (s2).According to the invention, it is provided in this case thatthe means for receiving and revaluation of the microwave signal (s1) from the microwave signal (s1) successive discrete reference values (tb_i) determining and of time changes of the discrete reference values (tb_i) determine whether a relevant change in temperature in the area of coverage (5) takes place is.For this purpose, the means preferably on:a radiometer - means (3) for receiving of the microwave signal (s1) and output of an analog band-signal (b) anda detecting means (4) for receiving and evaluation of the band-signal and determination of the discrete reference values (tb_i) a time and temperature behavior in the area of coverage (5).Furthermore, it is provided a corresponding method.