Fiber-optic voltage sensor
Abstract
A fiber optic voltage sensor is described which includes a source of light, a reference fiber for receiving a known percentage of the light and an electrostrictive element having terminals across which is applied, a voltage to be measured. The electrostrictive element is responsive to the applied voltage to assume an altered physical state. A measuring fiber also receives a known percentage of light from the light source and is secured about the electrostrictive element. The measuring fiber is provided with a cladding and exhibits an evanescent wave in the cladding. The measuring fiber has a known length which is altered when the electrostrictive element assumes its altered physical state. A differential sensor is provided which senses the intensity of light in both the reference fiber and the measuring fiber and provides an output indicative of the difference between the intensities.
- Inventors:
- Publication Date:
- Research Org.:
- EG and G Rocky Flats, Inc., Golden, CO (United States). Rocky Flats Plant
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 10104644
- Patent Number(s):
- PATENTS-US-A7551834
- Application Number:
- ON: DE92003823; PAN: 7-551,834
- Assignee:
- Dept. of Energy
- DOE Contract Number:
- AC04-76DP03533
- Resource Type:
- Patent Application
- Resource Relation:
- Other Information: PBD: 1990
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION; VOLTMETERS; DESIGN; INVENTIONS; FIBER OPTICS; ELECTRIC POTENTIAL; LIGHT SOURCES; OPTICAL FIBERS; 440800; 440600; MISCELLANEOUS INSTRUMENTATION; OPTICAL INSTRUMENTATION
Citation Formats
Wood, C B. Fiber-optic voltage sensor. United States: N. p., 1990.
Web.
Wood, C B. Fiber-optic voltage sensor. United States.
Wood, C B. 1990.
"Fiber-optic voltage sensor". United States.
@article{osti_10104644,
title = {Fiber-optic voltage sensor},
author = {Wood, C B},
abstractNote = {A fiber optic voltage sensor is described which includes a source of light, a reference fiber for receiving a known percentage of the light and an electrostrictive element having terminals across which is applied, a voltage to be measured. The electrostrictive element is responsive to the applied voltage to assume an altered physical state. A measuring fiber also receives a known percentage of light from the light source and is secured about the electrostrictive element. The measuring fiber is provided with a cladding and exhibits an evanescent wave in the cladding. The measuring fiber has a known length which is altered when the electrostrictive element assumes its altered physical state. A differential sensor is provided which senses the intensity of light in both the reference fiber and the measuring fiber and provides an output indicative of the difference between the intensities.},
doi = {},
url = {https://www.osti.gov/biblio/10104644},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Dec 31 00:00:00 EST 1990},
month = {Mon Dec 31 00:00:00 EST 1990}
}