Fiber optic vibration sensor
Abstract
A fiber optic vibration sensor utilizes two single mode optical fibers supported by a housing with one optical fiber fixedly secured to the housing and providing a reference signal and the other optical fiber having a free span length subject to vibrational displacement thereof with respect to the housing and the first optical fiber for providing a signal indicative of a measurement of any perturbation of the sensor. Damping or tailoring of the sensor to be responsive to selected levels of perturbation is provided by altering the diameter of optical fibers or by immersing at least a portion of the free span length of the vibration sensing optical fiber into a liquid of a selected viscosity.
- Inventors:
-
- Harriman, TN
- Lenoir City, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 869702
- Patent Number(s):
- 5381492
- Assignee:
- Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01H - MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- DOE Contract Number:
- AC05-84OR21400
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- fiber; optic; vibration; sensor; utilizes; single; mode; optical; fibers; supported; housing; fixedly; secured; providing; reference; signal; free; span; length; subject; vibrational; displacement; respect; indicative; measurement; perturbation; damping; tailoring; responsive; selected; levels; provided; altering; diameter; immersing; portion; sensing; liquid; viscosity; reference signal; optical fibers; fiber optic; optical fiber; single mode; signal indicative; mode optical; selected level; vibration sensor; vibration sensing; sensor utilizes; optic vibration; fibers supported; fixedly secured; /385/73/250/356/
Citation Formats
Dooley, Joseph B, Muhs, Jeffrey D, and Tobin, Kenneth W. Fiber optic vibration sensor. United States: N. p., 1995.
Web.
Dooley, Joseph B, Muhs, Jeffrey D, & Tobin, Kenneth W. Fiber optic vibration sensor. United States.
Dooley, Joseph B, Muhs, Jeffrey D, and Tobin, Kenneth W. Sun .
"Fiber optic vibration sensor". United States. https://www.osti.gov/servlets/purl/869702.
@article{osti_869702,
title = {Fiber optic vibration sensor},
author = {Dooley, Joseph B and Muhs, Jeffrey D and Tobin, Kenneth W},
abstractNote = {A fiber optic vibration sensor utilizes two single mode optical fibers supported by a housing with one optical fiber fixedly secured to the housing and providing a reference signal and the other optical fiber having a free span length subject to vibrational displacement thereof with respect to the housing and the first optical fiber for providing a signal indicative of a measurement of any perturbation of the sensor. Damping or tailoring of the sensor to be responsive to selected levels of perturbation is provided by altering the diameter of optical fibers or by immersing at least a portion of the free span length of the vibration sensing optical fiber into a liquid of a selected viscosity.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1995},
month = {Sun Jan 01 00:00:00 EST 1995}
}
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