Share Email Print

Proceedings Paper

Fiber optical liquid level sensor under cryogenic environment
Author(s): Chengning Yang; Steve Chen; Alex A. Kazemi
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

This paper reports a preliminary experimental investigation and characterization of an optical fiber based liquid level detection system for applications in aerospace industry. The sensor system is composed of a multiplexed array of point liquid probes. Two different designs of the probe were fabricated and tested. Probe tests were conducted in water/air and liquidlgas nitrogen environments. Response speed of the liquid probe was measured and compared experimentally with a Linear Variable Differential Transducer (LVDT). In addition, the multiplexing of multiple liquid probes using an OTDR device was successfully demonstrated. Finally, a novel liquid probe made by direct polishing the fiber tip is proposed, which may provide further miniaturization and performance improvements.

Paper Details

Date Published: 1 March 2001
PDF: 10 pages
Proc. SPIE 4204, Fiber Optic Sensor Technology II, (1 March 2001); doi: 10.1117/12.417426
Show Author Affiliations
Chengning Yang, Univ. of Maryland/College Park (United States)
Steve Chen, Univ. of Maryland/College Park (United States)
Alex A. Kazemi, Boeing Co. (United States)

Published in SPIE Proceedings Vol. 4204:
Fiber Optic Sensor Technology II
Brian Culshaw; Michael A. Marcus; Brian Culshaw; James A. Harrington; Michael A. Marcus; Mohammed Saad, Editor(s)

© SPIE. Terms of Use
Back to Top