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Title: Optical fiber pressure and acceleration sensor fabricated on a fiber endface

Abstract

A fiber optic sensor has a hollow tube bonded to the endface of an optical fiber, and a diaphragm bonded to the hollow tube. The fiber endface and diaphragm comprise an etalon cavity. The length of the etalon cavity changes when applied pressure or acceleration flexes the diaphragm. The entire structure can be made of fused silica. The fiber, tube, and diaphragm can be bonded with a fusion splice. The present sensor is particularly well suited for measuring pressure or acceleration in high temperature, high pressure and corrosive environments (e.g., oil well downholes and jet engines). The present sensors are also suitable for use in biological and medical applications.

Inventors:
; ; ;
Publication Date:
Research Org.:
Virginia Tech Intellectual Properties, Inc., Blacksburg, VA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175769
Patent Number(s):
7,054,011
Application Number:
10/911,635
Assignee:
Virginia Tech Intellectual Properties, Inc.
DOE Contract Number:  
FC36-01G011050
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Zhu, Yizheng, Wang, Xingwei, Xu, Juncheng, and Wang, Anbo. Optical fiber pressure and acceleration sensor fabricated on a fiber endface. United States: N. p., 2006. Web.
Zhu, Yizheng, Wang, Xingwei, Xu, Juncheng, & Wang, Anbo. Optical fiber pressure and acceleration sensor fabricated on a fiber endface. United States.
Zhu, Yizheng, Wang, Xingwei, Xu, Juncheng, and Wang, Anbo. Tue . "Optical fiber pressure and acceleration sensor fabricated on a fiber endface". United States. https://www.osti.gov/servlets/purl/1175769.
@article{osti_1175769,
title = {Optical fiber pressure and acceleration sensor fabricated on a fiber endface},
author = {Zhu, Yizheng and Wang, Xingwei and Xu, Juncheng and Wang, Anbo},
abstractNote = {A fiber optic sensor has a hollow tube bonded to the endface of an optical fiber, and a diaphragm bonded to the hollow tube. The fiber endface and diaphragm comprise an etalon cavity. The length of the etalon cavity changes when applied pressure or acceleration flexes the diaphragm. The entire structure can be made of fused silica. The fiber, tube, and diaphragm can be bonded with a fusion splice. The present sensor is particularly well suited for measuring pressure or acceleration in high temperature, high pressure and corrosive environments (e.g., oil well downholes and jet engines). The present sensors are also suitable for use in biological and medical applications.},
doi = {},
url = {https://www.osti.gov/biblio/1175769}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {5}
}

Patent:

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