Optical sensing apparatus and method

Details Optical sensing apparatus and method Optical sensing apparatus and method

G - Physics

01

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325/1, 73/3, 73/

G01L 11/02 (2006.01) G01B 11/16 (2006.01) G01D 5/353 (2006.01) G01K 1/02 (2006.01) G01P 15/00 (2006.01) G02B 6/04 (2006.01) G02B 6/14 (2006.01) G02B 6/28 (2006.01)

Patent

CA 1116884

ABSTRACT OF THE DISCLOSURE A sensor for measuring stress, temperature, pressure, sound, etc. comprising an optical waveguide, preferably an optical fiber waveguide, a light source which objects light into one end of the waveguide, a deformer contacting and de- forming the waveguide to cause light to couple from origin- ally excited modes to other modes, and an optical detector to detect the change in light coupling caused by deformation of the waveguide.

317722

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