High optical efficiency dual spectra pyrometer

Details High optical efficiency dual spectra pyrometer High optical efficiency dual spectra pyrometer

1985-11-14

1988-10-25

Laroche, Eugene R.

Optics: measuring and testing

Optical pyrometers

Plural color responsive

356 43, 374127, G01J 518

Patent

active

047799773

ABSTRACT:
A high optical efficiency dual spectra pyrometer for measuring the temperature of a target includes an optical guide for collecting and guiding a target optical beam to a detection module which comprises an interference filter and photodetectors adjustably positioned to provide efficient coupling of the target optical beam thereto. The pyrometer additionally includes a signal processor which receives the signals from the photodetectors, as well as signals indicative of an estimated fireball equivalent black body temperature and the spectral width difference between the two detector signals, and provides a compensated temperature signal.

REFERENCES:
patent: 4222363 (1980-09-01), Gebhart
patent: 4326798 (1982-04-01), Kahn
patent: 4616137 (1986-10-01), Goff et al.
T. G. R. Beynon, "Radiation Thermometry Applied to the Development and Control of Gas Turbine Engines", American Institute of Physics, 1982, pp. 471-477.
W. H. Atkinson, R. R. Strange, "Pyrometer Temperature Measurements in the Presence of Reflected Radiation", Proceedings of the Conference of the American Society of Mechanical Engineers, Aug. 1976, pp. 1-8.

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