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本电路是作为超声传感系统的一部分来研制的，其作用是测定超声脉冲在传经某段灌满水的管道中的渡越时间。以100ns精度及时测量出固定触发装置发射1．25MHz信号脉冲方位是必需的。图2所示法号脉冲的幅度变化范围越过10dB，在时间仙的移动范围为10qs，各周期幅度会随整个幅度变
This circuit was developed as part of an ultrasonic sensing system to determine the transit time of an ultrasonic pulse in a pipe passing through a section of water. It is necessary to measure the azimuth of 1.25MHz signal transmitted by the fixed trigger in time with 100ns accuracy. Figure 2 shows the pulse width of the law over the range of 10dB, immortal time in the movement of 10qs, the amplitude of the cycle will change with the entire range