Optical fiber temperature sensor
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United States of America Patent
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Mar 1, 1994
Grant Date -
N/A
app pub date -
Nov 13, 1992
filing date -
Nov 15, 1991
priority date (Note) -
Expired
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Abstract
An optical fiber temperature sensor including an optical fiber (1) which has a mirror (3) at its end, and which is associated with temperature-sensitive means, means for launching a signal into said fiber and means for receiving the signal reflected by said mirror back along the fiber, said temperature-sensitive means being a section of amplifying optical fiber (10) bonded to said optical fiber (1), cooperating with a light pump source, and doped with a chosen rare-earth element.
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