Fiber optical liquid level sensor under cryogenic environment

被引：72

作者：

Yang, CN

Chen, SP

Yang, GG

机构：

[1] Univ Maryland, Dept Mech Engn, Smart Mat & Struct Res Ctr, College Pk, MD 20742 USA

[2] Univ Coll Northampton, Fac Sci Appl, Northampton NN2 6JD, England

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2001年 / 94卷 / 1-2期

关键词：

liquid level detection; cryogenic; fiber optic sensors; liquid nitrogen; hydrogen;

D O I：

10.1016/S0924-4247(01)00663-X

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper reports a preliminary experimental investigation and characterization of an optical fiber-based liquid level detection system for applications in cryogenic environment. The sensor system comprises a multiplexed array of point liquid probes. Two different designs of the probe were fabricated and tested. Probe tests were conducted in water-air, liquid-gas nitrogen environments. The multiplexing of multiple liquid probes using an optical time domain reflectometer (OTDR) device was successfully demonstrated. In addition, response time of the liquid probe was measured and compared experimentally. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：69 / 75

页数：7