缆道测流,信号的可靠程度如何,将直接影响测验成果。长期以来,这个问题得不到很好的解决。究其因,大多是非绝缘缆道低输入阻抗条件下信号电压太微弱,接收器对输入信号电压的变化和要求过高,而使信号接收器失灵,特别是高水。针对这个问题,并考虑到目前我队大部分测站的使用维修水平,研制了一种灵敏度高、适应性好、抗干扰能力强的“三个信号”接收器。 Cableway flow measurement, the reliability of the signal how, will directly affect the test results. For a long time, this problem can not be solved well. The reason is that most of the uninsulated cable under low input impedance signal voltage is too weak, the receiver on the input signal voltage changes and the requirements are too high, leaving the signal receiver failure, especially high water. In response to this issue, and taking into account the current level of maintenance of most of our stations, a “three signal” receiver with high sensitivity, good adaptability and strong anti-interference ability was developed.