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Transforming an Optical Pick-Up-Head Into an Accelerometer With UltraHigh Sensitivity
IEEE Transactions on Instrumentation and Measurement
This paper proposes an accelerometer based on a commercial optical pick-up-head (PUH). An optical PUH is used to be part of an accelerometer by transforming the astigmatic measuring mechanism, the suspending wires, and the objective lens as the displacement sensor, the spring, and the seismic mass, respectively. Instead of adding an extra mass-damperspring subsystem into the system in previous works, in our design we utilize the four suspending metal wires and the objective lens in an opticaldoi:10.1109/tim.2013.2282427 fatcat:22rrn7inb5bg3dz4hmfrjppu6y