Rosette-type optical microsystem of strain gauges having dielect

Details Rosette-type optical microsystem of strain gauges having dielect Rosette-type optical microsystem of strain gauges having dielect

1995-10-30

1998-03-10

Font, Frank G.

Optics: measuring and testing

Material strain analysis

25022714, 25022716, 385 12, 385 13, G01B 1116

Patent

active

057267448

ABSTRACT:
The present invention relates to a planar, rosette-type, optical microsystem with strain gauges having dielectric guides used for measuring a system of strains or stresses applied to a part, in which the part is under purely longitudinal strain, at least one rosette being formed by at least two strain gauges with dielectric guides (J1, J2, J3) and in which a calculating circuit makes it possible to determine said strain by resolving a system of equations.

REFERENCES:
patent: 4806012 (1989-02-01), Meltz et al.
patent: 5321257 (1994-06-01), Danisch
patent: 5361130 (1994-11-01), Kersey et al.
Electronics Letters, vol. 29, No. 11, May 27, 1993, GB, pp. 964-966, A.D. Kersey et al. "Multi-Element Bragg-Grating Based Fibre-Laser Strain Sensor".
Smart Materials & Structures, vol. 1, No. 3, Sep. 1992, Bristol, GB, pp. 227-232, T. Valis et al., "Fiber-Optic Fabry-Perot Strain Rosettes".

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