Reflection corrected radiosity optical pyrometer

Details Reflection corrected radiosity optical pyrometer Reflection corrected radiosity optical pyrometer

1985-11-14

1987-11-24

LaRoche, Eugene R.

Optics: measuring and testing

Optical pyrometers

Plural color responsive

356 43, 374127, G01J 560

Patent

active

047084740

ABSTRACT:
A reflection corrected radiosity optical pyrometer includes an optical guide for receiving a target optical beam from a turbine blade in a jet engine. The target optical beam is provided to a detector module that divides the target optical beam into two beams, one having a spectral width selected to be less than the target optical beam spectral width. A signal processor receives signals from the detector module indicative of the energy of the two beams, calculates a reflection corrected energy signal directly therefrom and provides a correct target temperature signal.

REFERENCES:
patent: 4222663 (1980-09-01), Gebhart et al.
patent: 4326798 (1982-04-01), Kahn
patent: 4619533 (1986-10-01), Lucas 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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