Accession Number:

ADA091762

Title:

Experimental and Analytical Development of the Application of a Transit Laser Velocimeter

Descriptive Note:

Final rept. Mar-Sep 1979

Corporate Author:

SPECTRON DEVELOPMENT LABS INC COSTA MESA CA

Personal Author(s):

Report Date:

1980-11-01

Pagination or Media Count:

188.0

Abstract:

Spectron Development Laboratories, Inc. has designed, constructed and demonstrated a rugged, compact, and reliable coaxial backscatter laser transit anemometer system. Measurements have been made through a 1.25 inch thick window without seeding at a range of 400 mm from very clean air at 1200 ms with 80 mW of laser power incident on the sampling volume and a 100 mm diameter collection lens. The system employs many refined andor new techniques which include specially prepared single fiber optic light guides, spatial filtering of flare light from the opposite spot, high gain photomultiplier tubes with preamplifiers, filterdiscriminators which reject single photon events and estimate pulse center time, microcomputer control of optics and electronics, with on-line flow parameter estimation and graphics display.

Subject Categories:

  • Electrooptical and Optoelectronic Devices
  • Computer Hardware
  • Test Facilities, Equipment and Methods
  • Fiber Optics and Integrated Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE