Fiber-optic seismic sensor

Details Fiber-optic seismic sensor Fiber-optic seismic sensor

2005-11-03

2009-11-03

Connolly, Patrick J (Department: 2877)

Optics: measuring and testing

By light interference

Using fiber or waveguide interferometer

C073S514260

Reexamination Certificate

active

07612886

ABSTRACT:
The invention relates to a fiber-optic seismic sensor (200) with a test body (110), characterized in that the test body (110) comprises several separate dishes (113, 114, 115, 116) that are distributed around the direction of the sensitive axis of the sensor and two star-shaped elements (120, 130) placed on either side of the dishes (113, 114, 115, 116) and mechanically linking said dishes (113, 114, 115, 116) together.

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Guldimann et al., “Fiber-optic accelerometer with micro-optical shutter modulation and integrated damping,” Optical MEMS, 2000 IEEE/LEOS International Conference, Aug. 21-24, 2000, pp. 141-142.

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