Abstract

Fiber sensors are being proposed for the measurement of diverse environmental parameters. In this paper we are proposing the use of fiber sensors in the monitoring of the pressure in the o-ring of the Space Shuttle boosters. Both single fiber and interferometric systems are presented. The measurement of both pressure and temperature will be discussed, and novel techniques for measuring these quantities independently will be presented. Theoretical analysis and experimental results will be compared. Both multi-wavelength and heterodyning methods are going to be introduced and tested. Sensitivity and dynamic range of the system will be analyzed.

© 1992 Optical Society of America