DEVICE FOR MEASURING THE TEMPERATURE OF PARABOLIC-TROUGH SOLAR COLLECTOR TUBES, AND TEMPERATURE MEASUREMENT METHOD

摘要

The invention relates to a device for measuring the temperature of parabolic-trough solar collector tubes, comprising: - a module for detecting the electromagnetic radiation originating from the inner tube (2) and the outer tube (1) of a parabolic-trough solar collector, said module in turn comprising at least one detector means (8) consisting of a pair formed by a photodiode (11) and a thermopile (10), such that the thermopile (10) and the photodiode (11) measure in non-overlapping spectral ranges, a diaphragm (12) made from low-emissivity material and located next to the detector means (8), and electronic means for amplifying and filtering the signals detected by the detector means (8); a control module (6) including means for receiving, processing and storing the measurements obtained in the detection module; and a casing (4) containing at least one detection module.