Dual spectra optical pyrometer having a serial array of photodec

Details Dual spectra optical pyrometer having a serial array of photodec Dual spectra optical pyrometer having a serial array of photodec

1985-11-14

1987-07-21

LaRoche, Eugene R.

Optics: measuring and testing

Optical pyrometers

Plural color responsive

374127, G01J 518

Patent

active

046814345

ABSTRACT:
A novel dual spectra optical pyrometer is characterized by a serial array of photodetectors. The first photodetector absorbs a spectral portion of a target optical beam incident thereto, and passes the remainder optical beam to the second photodetector. Signals from both photodetectors are provided along with signals indicative of the first detector's spectral absorption and an estimate of the equivalent black body temperature of a fireball to a signal processor which provides a compensated temperature signal therefrom.

REFERENCES:
patent: 3454769 (1969-07-01), Dynes
patent: 4222663 (1980-09-01), Strange
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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