Failure detection circuit for ultrasonic apparatus
    1.
    发明授权
    Failure detection circuit for ultrasonic apparatus 失效
    超声波检测电路故障检测电路

    公开(公告)号:US3736523A

    公开(公告)日:1973-05-29

    申请号:US3736523D

    申请日:1972-07-31

    Applicant: BRANSON INSTR

    Inventor: PUSKAS W

    CPC classification number: B06B1/0253 B06B2201/40

    Abstract: A failure detection circuit for a power oscillator driven by a set of transistors which are switched to provide a square wave drive voltage to the oscillator comprises a narrow band pass filter and a voltage sensitive means. The band pass filter is coupled for receiving the square wave voltage and permits the passage of a predetermined odd-harmonic signal to the voltage sensitive means. The amplitude appearing at the voltage sensitive means, such as a lamp, is indicative of the operation of the oscillator.

    Abstract translation: 由切换为向振荡器提供方波驱动电压的一组晶体管驱动的功率振荡器的故障检测电路包括窄带通滤波器和电压敏感装置。 耦合带通滤波器以接收方波电压并允许将预定的奇次谐波信号通过电压敏感装置。 出现在诸如灯之类的电压敏感装置处的幅度表示振荡器的操作。

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