Optical fiber temperature sensor

Details Optical fiber temperature sensor Optical fiber temperature sensor

1992-11-13

1994-03-01

Yasich, Daniel M.

Thermal measuring and testing

Temperature measurement

In spaced noncontact relationship to specimen

25022711, 385 12, 374161, G01J 508, G01K 1100

Patent

active

052901033

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.

REFERENCES:
patent: 4002975 (1977-01-01), Erickson et al.
patent: 4136566 (1979-01-01), Christensen
patent: 4542987 (1985-09-01), Hirschfeld
patent: 4708494 (1987-11-01), Kleinerman
patent: 4785174 (1988-11-01), Hodges et al.
patent: 4906106 (1990-03-01), Kaufmann et al.
patent: 4986671 (1991-01-01), Sun et al.
Journal of Lightwave Technology, vol. 9, No. 2, February 1991, New York, US, pp. 261-265; Nobuyuki Kagi E. A.: "Temperature Dependence Of The Gain In Erbium-Doped Fibers".

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