论文部分内容阅读
讨论了超声波测量管道内流体流量的时差法及其性能的改进方法．采用时差相差转换提高时间的测量精度，而用设置测量窗口、脉冲宽度鉴别及双门限相位测量等方法，有效地提高了系统的稳定性和可靠性．
The time difference method of fluid flow in ultrasonic measuring pipeline and the improved method of its performance are discussed. The use of time difference between the phase difference conversion to improve the measurement accuracy of time, and set the measurement window, pulse width identification and two-threshold phase measurement methods to effectively improve the stability and reliability of the system.