Digital Real-time Ultrasonic Pulse-Echo Overlap System for Determination of Ultrasonic Velocity

A new digital real-time ultrasonic pulse-echo overlap system detecting ultrasonic velocity was developed on the hardware base of waveform exciter and digital acquisition card secondly developed. The system checked the zero of the first return wave echo and the second return wave echo, which could be used to calculate the ultrasonic velocity. Thus the design gave a new idea for ultrasonic velocity detecting and other ultrasonic fields.