Accession Number : ADD013064

Title :   Interferometric Fiber Optic Hydrophone Winding Machine.

Descriptive Note : Patent, Filed 9 Feb 84, patented 2 Jul 85,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Matthews,William G ; Whitaker,Todd E

Report Date : 09 Jul 1985

Pagination or Media Count : 9

Abstract : A machine for winding, in a selected and consistent manner, a fiber optic filament on a compliant elastometric mandrel, which assembly responds to acoustic waves by producing variations in diameter and light transmission characteristics of the fiber optic means. A motor rotates the mandrel at a selectable speed. A timing belt couples the mandrel rotation to a traversing mechanism supporting an optical fiber carrying reel and is adjustable to variably convert the rotary to linear motion. The shaft supporting the reel has brake means for adjusting the tension on the fiber. The fiber feeds over an idler roll which operates to count the number of meters of fiber wound on the mandrel, and then passes under a tension sensing roll. By varying mandrel rotation speed, traversing speed and reel drag, compliant hydrophone mandrels can have optical fibers wrapped therearound having many different fiber lay angles and fiber tension, thus permitting production of hydrophones of desired characteristics.

Descriptors :   *PATENTS, *FIBER OPTICS, *HYDROPHONES, *MANDRELS, *TENSION, *TRAVERSING MECHANISMS, *WINDING, ACOUSTIC WAVES, FEEDING, FIBERS, LIGHT TRANSMISSION, LINEARITY, MOTION, ROTATION, ELASTIC PROPERTIES, PRODUCTION, VELOCITY, DETECTION, ROLL, COUPLING(INTERACTION), TIME, TRAVERSING MECHANISMS

Subject Categories : Mfg & Industrial Eng & Control of Product Sys
      Acoustic Detection and Detectors
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE