公开(公告)号：US3866068A

公开(公告)日：1975-02-11

申请号：US45283874

申请日：1974-03-20

Applicant: LEWIS CORP

Inventor： KRENICKI JOSEPH ,  HUNICKE RAYMOND L

IPC: B06B1/02 ,  H01V7/00

CPC classification number: B06B1/0284 ,  B06B2201/71

Abstract: A feedback oscillator circuit provides a load waveform which is intentionally distorted, delivering plural and shifting frequency energy to and from a piezoelectric crystal transducer which operates an ultrasonic cleaner; the transducer is thus made to vibrate in timed bursts, while automatically shifting between different predominant frequencies during each burst. By adjusting specific circuit components, the duration and timing of predominant frequencies generated by the circuit is controlled. This automatic frequency shifting mode of operation provides improved cavitation, controllable for a specific desired result, and therefore provides superior cleaning in the cleaning tank.

Abstract translation: 反馈振荡器电路提供有意失真的负载波形，向操作超声波清洗器的压电晶体换能器提供多个和移位频率能量; 因此，换能器以定时突发振动，同时在每次突发期间自动地在不同的主频之间移动。 通过调整特定的电路元件，控制由电路产生的主频的持续时间和时序。 这种自动变频操作模式提供了改进的气蚀，对于特定的期望结果是可控的，因此在清洗槽中提供了优异的清洁。