Accession Number : ADD009807

Title :   Fiber Optic Spectrophone for Remote Sensing.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Giallorenzi,Thomas G ; Leslie,Daniel H ; Trusty,Gary L ; Davis,Charles M

Report Date : 30 Jul 1982

Pagination or Media Count : 31

Abstract : A fiber optic optoacoustic spectroscopy device for the remote detection of trace quantities of gases. The device includes a fiber optic spectrophone located in the vicinity of the gases to be detected. A modulated excitation laser beam is transmitted to the spectrophone from a remote source via an optical fiber linkage. Similarly a remotely fiber optic interferometer is coupled to a fiber optic pressure detector in the spectrophone via optical fiber linkages. The device allows the spectrophone to be physically and electrically separated from the other parts of the device containing electrical apparatus such that the danger of explosion involved in the detection of explosive gases is reduced. (Author)

Descriptors :   *Patent applications, *Spectrophones, *Remote detectors, *Trace gases, Spectroscopy, Fiber optics, Laser beams, Excitation, Light transmission, Fiber optics transmission lines, Linkages, Optical interferometers, Energy absorbers, Pressure measurement, Explosive gases

Subject Categories : Test Facilities, Equipment and Methods
      Atomic and Molecular Physics and Spectroscopy
      Fiber Optics and Integrated Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE