G - Physics – 01 – S
Patent
G - Physics
01
S
G01S 17/36 (2006.01) G01B 9/02 (2006.01) G01S 7/493 (2006.01)
Patent
CA 2552465
An optical sensor for determining a distance between a target and a probe head is described. The optical sensor comprises a light source delivering a broadband spectrum; a fiber-optic Michelson interferometer (FOMI) for creating an interferogram; and an analyzer unit for receiving the interferogram from an output of the FOMI and for determining the distance of the target by finding a position corresponding to a maximum in a Fourier transform of the spectral distribution of the interferogram. The FOMI comprises a probing optical fiber terminated by the probe head and a reference optical fiber, the reference optical fiber having a fixed optical path length.
Beaulieau Rene
Cormier Jean-Francois
Institut National D'optique
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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