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Design scheme to increase the gain of strain based sensors in hard disk drive actuators
Design scheme to increase the gain of strain based sensors in hard disk drive actuators
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机译:提高硬盘驱动器执行器中基于应变的传感器的增益的设计方案
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摘要
An actuator arm assembly has an actuator arm and an actuator for moving the actuator arm whereby the arm assembly experiences vibrations. The actuator has a body with a recess formed therein, and a strain sensor is fitted essentially inside the recess such that the sensor generates signals correlated to the vibrations. This arrangement produces a high gain boost from the strain based sensor, making an amplifier circuit unnecessary. The sensor signals are used to damp the vibrations.
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