A
detector constructed from a material having a large temperature
coefficient of
resistance. Absorption of radiation gives rise to a change in
resistance. A bolometer is named according to its active component, e.g. thermistor bolometer,
semiconductor bolometer, superconductor bolometer.
Source:
PAC, 1995, 67, 1745
(Nomenclature, symbols, units and their usage in spectrochemical analysis-XI. Detection
of radiation (IUPAC Recommendations 1995))
on page 1752