Accession Number : ADD006432

Title :   Fiber Optic Acoustic Sensor.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Bucaro ,Joseph A ; Carome ,Edward F ; Dardy,Henry D

Report Date : 24 Jul 1979

Pagination or Media Count : 6

Abstract : An optical fiber acoustical sensor for detecting sound waves in a fluid medium. An optical fiber coil through which a light beam is transmitted is placed in a fluid medium. A sound wave propagating through the fluid medium and incident on the optical fiber coil changes the index of refraction of the optical fiber at the area of incidence. The index change causes a phase shift in the transmitted light which is detectable to denote the presence of the sound wave. (Author)

Descriptors :   *Patents, *Acoustic detectors, *Fiber optics, *Acoustic detection, *Acoustic waves, Fluids, Light transmission, Sound transmission, Wave propagation, Refractive index

Subject Categories : Acoustic Detection and Detectors
      Fluid Mechanics
      Fiber Optics and Integrated Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE