Pyrometer

Details Pyrometer Pyrometer

1989-02-08

1990-12-18

Teska, Kevin J.

Boots, shoes, and leggings

374121, 2503381, 356 45, G01J 500

Patent

active

049791338

ABSTRACT:
A pyrometer according to the present invention calculates a temperature of a target to be measured by means of light emitting device for emitting reference light having three wavelengths to the target, and light measuring portions for measuring the intensity of the reference light, the intensity of light reflected by the target, the intensity of light transmitted through the target and the intensity of light radiated by the target, respectively with respect to each of the three wavelengths. The transmitted light measured value of the reference light transmitted through the target is used for temperature calculation in addition to the measured values of the reference light, the reflected light and the radiated light, and therefore even if the target is a semi-transparent object, the true temperature thereof can be calculated.

REFERENCES:
patent: 4411519 (1983-10-01), Tagami
patent: 4647774 (1987-03-01), Brisk et al.
patent: 4657385 (1987-04-01), Pointer
patent: 4679934 (1987-07-01), Ganguly et al.
patent: 4708493 (1987-11-01), Stein
patent: 4797840 (1989-01-01), Fraden
patent: 4823291 (1989-04-01), Berman
patent: 4859065 (1989-08-01), Bibby
Applied Optics, R. J. Brown, B. G. Young, Dec. 1975, vol. 14, No. 12, pp. 2927-2934.

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