Thermal measuring and testing – Temperature measurement – In spaced noncontact relationship to specimen
Patent
1989-01-30
1992-03-24
Cuchlinski, Jr., William A.
Thermal measuring and testing
Temperature measurement
In spaced noncontact relationship to specimen
G01J 500
Patent
active
050981978
ABSTRACT:
Method and device for direct, non-contact temperature measure of a body. A laser beam is reflected from the surface of the body and detected along with the Planck radiation. The detected signal is analyzed using signal correlation technique to generate an output signal proportional to the Johnson noise introduced into the reflected laser beam as a direct measure of the absolute temperature of the body.
REFERENCES:
patent: 3878723 (1975-04-01), Blalock et al.
patent: 3986775 (1976-10-01), Chang et al.
patent: 4002975 (1977-01-01), Erickson et al.
patent: 4634290 (1987-01-01), Rosencwaig et al.
patent: 4804264 (1989-02-01), Kirchhofer et al.
Brophy et al., The Review of Scientific Instruments, vol. 36, No. 12, Dec. 1965, pp. 1803-1806, "Correlator-Amplifier for Very Low Level Signals".
Blalock Theron V.
Maxey Lonnie C.
Roberts Michael J.
Shepard Robert L.
Breeden David E.
Cuchlinski Jr. William A.
Hamel Stephen D.
Moser William R.
The United States of America as represented by The United States
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