The characteristics of a thermistor, a metal-film bolometer, and a pyroelectric detector were investigated with the aim of attaining a highly reliable bolometric measurement. The spurious signal which appears on a pyroelectric detector was sufficiently eliminated by setting a mask close to the detector, thus avoiding the direct incidence of photons at the electrode. Whether a signal was true or false could be determined from the integrated value of the signal. Calibrations were performed with a HeNe laser in consideration of reflections on the detector surface. No time drift was observed on the sensitivity determined in such a way. The radiation power measured with a pyroelectric detector agreed within 10% with that measured with a calibrated metal-film bolometer.
No takes yet. Share an insight, caveat, or question.
Ogawa et al. (1986) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: