Fiber strain sensor and system including one intrinsic and one e

Details Fiber strain sensor and system including one intrinsic and one e Fiber strain sensor and system including one intrinsic and one e

1995-05-26

1997-10-28

Turner, Samuel A.

Optics: measuring and testing

By particle light scattering

With photocell detection

356 355, 356352, G01B 902

Patent

active

056822375

ABSTRACT:
A strain sensor (50) combines an intrinsic Fabry-Perot interferometer (IFPI) (60) with an extrinsic Fabry-Perot interferometer (EFPI) (56, 62). The IFPI (60) is between two EFPIs (56,62) and shares its two air to glass minors (58, 62). The outside edges (54, 66) of the two EFPIs (56, 64) are connected to an optical fiber (52). The strain sensor (164) can be implemented on a semiconductor chip (150). A waveguide (156) on the semiconductor chip (150) is etched to form two blocks (158) with an island section (162) between them. The two blocks (158) form the EFPI and the center section (162) forms the IFPI. A strain measurement system (100) that takes advantage of the strain sensor (50) has a laser (102) coupled to a optical fiber (106) containing one or more strain sensors (108). A coupler (104) directs the reflected light from the sensors (108) to a tunable Fabry-Perot etalon (114). The output of the tunable Fabry-Perot etalon (114) is coupled to a photodetector (116). A controller (118) monitors the output of the photodetector (116) and controls the tunable Fabry-Perot etalon (114).

REFERENCES:
patent: 4452533 (1984-06-01), Miles et al.
patent: 4525067 (1985-06-01), Hernandez
patent: 4627728 (1986-12-01), Willson
patent: 4994791 (1991-02-01), Taylor
patent: 5062684 (1991-11-01), Clayton et al.

Affiliated with

Also associated with

Rating

Fiber strain sensor and system including one intrinsic and one e does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fiber strain sensor and system including one intrinsic and one e, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fiber strain sensor and system including one intrinsic and one e will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1029379