Athermal fibre cavity etalon for ultra-high-sensitivity strain sensing

Authors
Patrick, HJ Wright, BM Greenblatt, AD Homrighaus, ZJ Friebele, EJ
Citation
Hj. Patrick et al., Athermal fibre cavity etalon for ultra-high-sensitivity strain sensing, ELECTR LETT, 35(11), 1999, pp. 920-921
Citations number
4
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
ELECTRONICS LETTERS
ISSN journal
00135194 → ACNP
Volume
35
Issue
11
Year of publication
1999
Pages
920 - 921
Database
ISI
SICI code
0013-5194(19990527)35:11<920:AFCEFU>2.0.ZU;2-9
Abstract
An ultra-high sensitivity static strain sensor with 300n epsilon/degrees C thermal apparent strain has been fabricated by constructing a fibre etalon cavity of concatenated fluoride and silica fibre sections bonded to a low t hermal expansion coefficient graphite composite strut tube. The athermal ca vity is 30 times less temperature-sensitive than a simple fluoride or silic a cavity, while retaining the same response to physical strain.