提高超声波检测系统信噪比的理论研究及检测控制方案

Theoretical Research and Detection Control Method of Ultrasonic Measuring System for Improving the System SNR

针对超声波检测系统的特点 ,从实际应用出发 ,对系统进行理论分析 ,得到了换能器的最佳驱动信号 ,大大提高了系统的信噪比 ,为超声波检测系统的实际应用提供了有用的理论依据 ;同时 ,还提出了系统检测控制可行性方案 ,很大程度上解决了超声波检测系统的噪声问题。实验结果表明 ,该理论正确 ,控制方案实用。

Based on the characteristic of ultrasonic measuring system, the theoretical research of the system is presented, and the best drive signal is obtained, which improves the signal to noise ratio of the system. The feasible control method is described, which reduces the noise of ultrasonic system and provides useful theoretical reference for the system.