Ultrasonic Pulse Reflection Method of Thickness Measurement System based on FPGA

This paper describes the principle of measuring the thickness of a pulse reflection method, in accordance with the principle of thickness measurement of the pulse reflection method, we proposed a new method of extraction and analysis of the echo signal. The thickness measurement ultrasonic pulse reflection control system is designed. The differential detection circuit and the zero-crossing comparator form the peak detection circuit. The pulse echo signal is processed to improve the measurement accuracy.