Importance

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Abstract

Adaptive piezoelectric actuator control system, including: a power supply, a piezoelectric actuator, a driver driving the actuator, a signal generator providing a frequency signal to the driver, a user interface allowing user input of operating conditions, memory storing parameters of the actuator, and system control means controlling the power supply, driver generator and memory so operating frequency of the actuator is monitored and regulated, wherein the driver comprises test means providing a test signal to the actuator, voltage measurement means measuring voltage applied to the actuator caused by the test signal and voltage applied to the actuator caused by the frequency signal, the system control means receiving a response signal in response to the test, and receiving voltages measured by the voltage measurement means, and comprising signal analysis means creating a response signal envelope and controlling the generator to generate a frequency signal corresponding to the envelope maximum.

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First Claim