Optical waveguides – Optical waveguide sensor
Reexamination Certificate
2005-03-29
2005-03-29
Kianni, K. Cyrus (Department: 2883)
Optical waveguides
Optical waveguide sensor
C385S013000, C385S052000
Reexamination Certificate
active
06873752
ABSTRACT:
A tuneable sensor reed for fiber optic vibration sensors. A sensor reed is mounted inside of a sensor case with an adjustable mounting structure such as a screw, bolt, clamp or cam lock. Adjusting the mounting structure changes the stresses on the sensor reed, and therefore adjusts the base frequency without the need to replace the whole sensor case. In a particular embodiment, the sensor reed is held in place by screws that completely penetrate the sensor case, and adjustments are made at the terminal end of the screw, which is on the outside of the sensor case, using for example, lock nuts. This adjustment allows for a sensor reed to be reset to its base frequency to compensate for such things as frequency drift, or to be set to a new frequency as desired.
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Kianni K. Cyrus
Siemens Westinghouse Power Corporation
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