Thermal measuring and testing – Temperature measurement – Combined with diverse art device
Patent
1985-11-15
1988-08-23
Cuchlinski, Jr., William A.
Thermal measuring and testing
Temperature measurement
Combined with diverse art device
374144, 374127, 374121, 356 45, G01J 500, G01K 114
Patent
active
047657529
ABSTRACT:
A radiation thermometer comprises two radiation detectors for detecting radiation in wavelength bands centered on two different wavelengths .lambda..sub.1,.lambda..sub.2 (where .lambda..sub.1 >.lambda..sub.2) from a rotating body such as a gas turbine motor and for generating first and second signals S.sub.1,<S.sub.2 >respectively related to the radiance profile around said body and the average radiance around said body. A time averaging circuit generates a signal <S.sub.1 >representing an average value of said first signal. A dividing circuit generates a signal related to the ratio of <S.sub.1 >to <S.sub.2 >; and a monitor monitors at least one of said signals, predetermined arithmetic combinations of said signals, and quantities related thereto and provides corresponding output signals.
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Beynon, "Infrared Radiation Thermometry Applied to the Development and Control of Gas Turbines", High Temperature Technology, Nov. 1982 pp. 85-91.
Beynon Thomas G. R.
Kirby Peter J.
Cuchlinski Jr. William A.
Land Infrared Limited
Will Thomas B.
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