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    • 6. 发明授权
    • Diesel engine revolution counter
    • 柴油发动机革命柜台
    • US5181232A
    • 1993-01-19
    • US679924
    • 1991-04-03
    • Shigeo Take
    • Shigeo Take
    • G01P3/481F02B3/06F02B75/02G01P3/48G01P3/489
    • G01P3/48F02B2075/027F02B3/06
    • The revolutions of a diesel engine are counted by providing vibration detector converting the vibration propagating through the fuel injection pipe into an electric signal; an amplitude sorter for receiving the electric output signal of the detector and providing an output signal when the amplitude becomes larger than a predetermined level; a waveform shaper for receiving the output signal of the sorter and converting respective pulse groups to single pulse outputs. The respective pulses from the sharper are judged to determine whether signal pulse in the present period is within a predetermined allowable range or not, and thereby determining whether respective pulses are "normal" pulses or not. The number of normal pulses per unit time are counted and displayed on a monitor.
    • 通过提供将通过燃料喷射管传播的振动转换为电信号的振动检测器来计数柴油发动机的转数; 振幅分选器,用于接收检测器的电输出信号,并且当振幅变得大于预定水平时提供输出信号; 用于接收分类器的输出信号并将各个脉冲组转换为单个脉冲输出的波形整形器。 判断来自尖锐器的脉冲是否确定当前周期中的信号脉冲是否在预定的允许范围内,从而确定各个脉冲是否为“正常”脉冲。 每单位时间的正常脉冲数被计数并显示在监视器上。