Fibre optic sensor
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United States of America Patent
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-
Mar 10, 1992
Grant Date -
N/A
app pub date -
Aug 14, 1989
filing date -
Aug 16, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A fibre optic sensor 1 comprises a body 2 of a matrix material which includes an embedded length of optical fibre 3. When the body 2 is exposed to an external disturbance, mechanical and strain forces arising internally can be transmitted to the fibre 3 and will modify the passage of light therein. Pulsed light through the fibre 3 can be sensed for example by interferometry to measure the disturbance. This can provide an inexpensive and sensitive sensor construction which is capable of the remote detection of various parameters.
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