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Optical accelerometer, optical inclinometer and seismic sensor system using such accelerometer and inclinometer
Optical accelerometer, optical inclinometer and seismic sensor system using such accelerometer and inclinometer
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机译:光学加速度计,光学倾角仪和使用这种加速度计和倾角仪的地震传感器系统
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摘要
An optical accelerometer includes a beam and at least one optical fiber affixed to one side of the beam such that deflection of the beam changes a length of the optical fiber. A device for sensing the change in length of the optical fiber is functionally coupled to the at least one fiber. A seismic sensor system includes at least two accelerometers, oriented such that their sensitive axes are at least partially aligned along mutually orthogonal directions. Each accelerometer includes a beam, and at least one optical fiber affixed to one side of the beam such that deflection of the beam changes a length of the at least one optical fiber. A device for sensing the change in length of the optical fiber is functionally coupled to the at least one fiber of each accelerometer.
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