Optics: measuring and testing – Oil testing
Patent
1974-12-26
1976-10-19
Corbin, John K.
Optics: measuring and testing
Oil testing
356 45, G01J 544, G01J 560
Patent
active
039867757
ABSTRACT:
The remote temperature measurement of a fluid is determined by Raman backscattered radiation from the fluid where the fluid is subjected to intense pulses of laser radiation generated at a remote location. The backscattered radiation is filtered to selectively attenuate reflected radiation from the laser and is transmitted to a detector system which individually counts the detected radiation in each of two different radiated frequencies. A divider generates a ratio of the count which is transformed by a function generator to produce an output signal indicative of fluid temperature.
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Chang Chin H.
Leonard Donald A.
Young Lee A.
Corbin John K.
Hansen Henry
Punter Wm. H.
Sciascia R. S.
The United States of America as represented by the Secretary of
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