ultrasonic echo signal

A method about acquisition and processing of ultrasonic echo signal in liquid level measurement is introduced.

介绍了一种在液位测量中超声回波信号的采集与处理方法。

For the detection and processing of ultrasonic echo signal, the method proposed by this paper is able to improve the whole precision on a certain technical condition.

对于超声回波信号的检测与处理，本文提出的方法在一定的技术条件下可以实现回波信号整体检测精度的提高。

Based on studying the generating and receiving circuit of ultrasonics, this dissertation analyzes that the key to improve measuring accuracy is how to seek the starting time of ultrasonic echo signal.

在研究了超声波信号的产生、接收电路的基础上，分析了提高测量精度的关键在于如何精确地寻找到超声波回波信号的起点时刻。