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Ultrasonic lens cleaning with travelling wave excitation
Ultrasonic lens cleaning with travelling wave excitation
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机译:超声波透镜的行波激励清洗
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摘要
Disclosed examples include ultrasonic lens cleaning systems and driver circuits to clean a lens using four or more transducer segments mechanically coupled to the lens, in which the driver circuit provides phase shifted oscillating signals to the transducer segments to generate a mechanical traveling wave rotating around the center axis of the lens to vibrate the lens for improved ultrasonic cleaning.
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