Accession Number : ADD001736

Title :   Remote Measurement of Fluid Temperature.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Chang,Chin H

Report Date : 26 Dec 1974

Pagination or Media Count : 16

Abstract : This patent application pretains to the remote temperature measurement of a fluid which 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.

Descriptors :   *Raman spectra, *Temperature measuring instruments, *Liquids, Patents, Pulsed lasers, Counters, Wavelengths, Water, Polymers, Monomers, Temperature, Laboratory equipment, Laser beams, Backscattering

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE