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    • 21. 发明授权
    • Automatic tuning circuit for use in an ultrasonic apparatus
    • 用于超声波设备的自动调谐电路
    • US4551690A
    • 1985-11-05
    • US681085
    • 1984-12-13
    • Eric Quist
    • Eric Quist
    • H03J7/02H03L7/00
    • H03J7/02
    • An automatic tuning circuit is provided for adjusting the frequency and phase of an oscillatory circuit in a power supply used for providing high frequency electrical energy to an electroacoustic converter. The oscillatory circuit includes an electrically variable inductance means in a feedback loop coupled between the output and an input of the oscillatory circuit and a switching device. The phase relationship of a signal indicative of the voltage across the switching device and a signal indicative of the state of the switching device and hence the current through the switching device is monitored. The inductance of the variable inductance means is adjusted responsive to the phase relationship of the signals indicative of voltage and current through the switching device for maintaining the two signals in phase during operation of the oscillatory circuit.
    • 提供了一种自动调谐电路,用于调节用于向电声转换器提供高频电能的电源中的振荡电路的频率和相位。 振荡电路包括耦合在输出端和振荡电路的输入端之间的反馈环路中的电可变电感装置和开关装置。 监视表示开关装置两端的电压的信号与表示开关装置的状态的信号的相位关系,并因此监视通过开关装置的电流的相位关系。 响应于指示通过开关装置的电压和电流的信号的相位关系来调节可变电感装置的电感,以在振荡电路的操作期间保持两个信号同相。
    • 29. 发明授权
    • Method of assembling a storage battery using vibratory energy
    • 使用振动能量组装蓄电池的方法
    • US3981759A
    • 1976-09-21
    • US632240
    • 1975-11-17
    • Arthur M. Summo
    • Arthur M. Summo
    • B29C65/06H01M2/04H01M2/30B29C27/08
    • B29C65/0618B29C66/542H01M2/0439H01M2/307
    • A storage battery comprising a thermoplastic cover having a hollow metallic terminal therein and a thermoplastic case having an upstanding metallic core member passing through the terminal is assembled using vibratory energy. The cover and the case undergo relative reciprocating translating motion while under the influence of a static force applied in a direction perpendicular to the plane of the mating surfaces between the cover and case. The terminal and core are dimensioned for providing a peripheral clearance around the core in the direction of the reciprocating motion at least equal to the peak-to-peak displacement of the vibratory motion. The gap existing between the core and the terminal when the battery is assembled is sealed.
    • 包括其中具有中空金属端子的热塑性盖子和通过端子的具有直立金属芯构件的热塑性壳体的蓄电池使用振动能量组装。 盖子和壳体经受相对往复平移运动,同时在垂直于盖和壳体之间的配合表面的平面的方向上施加的静力的影响下。 端子和芯的尺寸用于在往复运动的方向上围绕芯提供至少等于振动运动的峰 - 峰位移的周向间隙。 当组装电池时,芯和端子之间存在的间隙被密封。