基于轴向应力波理论的冲击能量测量方法及应用  

A method and application of measuring impact energy based on theory of axial stress waves

作　　者：陈建秋 Chen Jianqiu

机构地区：[1]上海电动工具研究所(集团)有限公司,上海200233

出　　处：《电动工具》2024年第3期6-12,共7页Electric Tool

摘　　要：研究一种基于轴向应力波理论的冲击能量测量方法,将冲击能量的测量转换为对应力波的测量,进一步开发了电锤冲击能量的计算机辅助测量系统。系统采用定制长度与直径以及对杨氏模量和质量密度进行标定的测试杆,使用精确的应变片和惠斯顿电桥、微信号放大电路、高速ADC数据采集卡和相应的冲击能量测量软件进行实验。实验结果表明:测量方法与应用提升了电动工具冲击能量的智能化测量水平,测量数据准确可靠。A method of measuring impact energy based on theory of axial stress wave is studied.The measurement of impact energy is converted into the measurement of axial stress wave so that a computer aided measurement system of impact energy of electric hammer is developed.The system uses custom length and diameter test rods for calibration of Young's modulus and mass density,precise strain gauges and Whiston Bridges,micro signal amplification circuits,high-speed ADC data acquisition cards,and corresponding impact energy measurement software to do the experiment.The experimental results show that the measurement method and application improve the level of intelligent measurement of the impact energy of electric tools,and the measurement data are accurate and reliable.

关 键 词：电动工具 冲击能量 应力 测量方法 电路 放大 计算机辅助测量和控制 

分 类 号：TM930.11[电气工程—电力电子与电力传动]