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FREQUENCY TUNING AND/OR FREQUENCY TRACKING OF A MECHANICAL SYSTEM WITH LOW SENSITIVITY TO ELECTRICAL FEEDTHROUGH
FREQUENCY TUNING AND/OR FREQUENCY TRACKING OF A MECHANICAL SYSTEM WITH LOW SENSITIVITY TO ELECTRICAL FEEDTHROUGH
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机译:电学灵敏度低的机械系统的频率调整和/或频率跟踪
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摘要
An apparatus and method for frequency tuning/tracking between an electrical subsystem and a mechanical transducer subsystem is presented. An electromechanical transducer generates acoustic pulses as it is driven by a transmit signal from an electrical subsystem. As the transmit signal goes inactive, the settling behavior of the transducer is registered from which the difference in frequency between the resonance of the electromechanical transducer and the transmit signal frequency is determined and utilized for locking the electrical subsystem to the mechanical transducer subsystem by either tuning operating frequency of the electrical subsystem, or the mechanical transducer, to keep them matched (locked).
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