应力波时间仪的研制和应用

RESEARCH AND DESIGN OF STRESS WAVE TIME INSTRUMENT AND ITS APPLICATIONS

应力波时间间隔仪主要由加速度传感器、应力波脉冲转换器、计数、译码和显示单元电路组成。它可以测量出应力波通过材料两端的时间。从而得到应力波的传播速率。本文给出了应力波信号放大 ,变换及门信号产生。

Stress wave time instrument mainly includes: accelerometer, pulse converter, counter, decode and display unit. It can measure the time that stress wave pass through the material. So the travelling speed of stress wave can be obtained. In this paper, the design method of signal amplifier, gate signal producing and counter circuit was presented.