Accession Number:

ADA238393

Title:

The Development of a Fiber-Optic Readout Pressure Transducer

Descriptive Note:

Final rept. Jun 1990-Jan 1991

Corporate Author:

BATTELLE MEMORIAL INST RESEARCH TRIANGLE PARK NC

Personal Author(s):

Report Date:

1991-06-01

Pagination or Media Count:

25.0

Abstract:

An all-optical pressure measurement system has been developed that uses a highly reflective diaphragm as the sensing element for a pressure transducer. This type of pressure transducer offers improved sensitivity, free from electrical and magnetic disturbances. Laser light is reflected off of the fibers end and from the diaphragm. The reflections travel back into the same fiber and are combined interferometrically to create interference fringes. These fringes shift proportionally to the diaphragms deflection. The return signal is sent to a photodetector and analyzed for pressure variations.

Subject Categories:

  • Test Facilities, Equipment and Methods
  • Fiber Optics and Integrated Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE