Fiber optic load sensor

Details Fiber optic load sensor Fiber optic load sensor

1996-09-13

1999-07-20

Sanghavi, Hemang

Optical waveguides

Optical waveguide sensor

Including physical deformation or movement of waveguide

25022714, 25022716, 73653, G02B 600

Patent

active

059265841

ABSTRACT:
The invention concerns a faseroptic load sensor with a support structure and at least one interference structure shaped like a wire, on which at least one optical fiber is displayed. The optical fiber is cleared through a wireshaped interference structure at intervals from the support structure so that a large number of bent spots occur. An additional pressure load on the optical fiber vertical to the support structure then causes changes in the bending radius of each bend spot.

REFERENCES:
patent: Re35020 (1995-08-01), Quinlan, Jr.
patent: 4724316 (1988-02-01), Morton
patent: 4788868 (1988-12-01), Wilk
patent: 4794365 (1988-12-01), Dunbar
patent: 5317929 (1994-06-01), Brown et al.
J. Boby, et al., "Vehicle Weighing in Motion with Fibre Optic Sensors", Measurement + Control, vol. 26, Mar. 1993, pp. 45-47.
Tetsuji Abe, et al., "A Strain Sensor Using Twisted Optical Fibers", Journal of Lightwave Technology, vol. 7, No. 3, Mar. 1989, pp. 525-529.
Y. Ohtsuka, et al., "Polarimetric Fibre Coil Deformation Sensor Insensitive to Ambient Temperature Disturbances", Measurement Science & Technology, vol. 3, Apr. 1992, pp. 375-380.

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