Accession Number : ADP008948

Title :   A Field-Worthy Profiling Fiber-Optic Diode Laser Doppler Velocimeter,

Corporate Author : QUEST INTEGRATED INC KENT WA

Personal Author(s) : Liu, H. -T. ; Bondurant, P. D. ; Gustafson, W. T. ; Marvin, M. H. ; Srnsky, R. A.

Report Date : 23 JUL 1992

Pagination or Media Count : 6

Abstract : A prototype prefiling fiber-optic Doppler velocimeter (FODLDV) for flow measurements in coastal waters was developed, fabricated, and testbed in the laboratory and in the field. The two-component FODLDV, a backscattering version of a field-proven diode laser Doppler velocimeter (DLDV), consists of a fiber optic probe and link, an optronic module, a digital fast fourier transform-based signal processor, and a data acquisition and control system. The fiber-optic probe and link are mounted on a traverse that facilitates velocity profiling up to a range of 3 m, operating in a move-stop-and-sample mode from a stationary platform. One of the components was tested extensively in the laboratory. (Author)

Descriptors :   *LASER VELOCIMETERS, *FIBER OPTICS, FIELD EQUIPMENT, DOPPLER EFFECT, SEMICONDUCTOR LASERS, SEMICONDUCTOR DIODES, WATER FLOW, COASTAL REGIONS, DIGITAL SYSTEMS, FOURIER TRANSFORMATION.

Subject Categories : Optical Detection and Detectors
      Fiber Optics and Integrated Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE