摘要
针对目前市场上阻抗测量仪价格高昂、电路复杂的缺点,该研究采用单片机编程和AD8302幅相检测芯片,设计并实现了一种信号源灵活可调的阻抗测量系统。通过测试,误差在4%以内。该阻抗测量仪对元器件要求精度低,成本低廉,适用于对阻抗测量精度不太高的实际应用场合。
aiming at the disadvantages of high price and complex circuit of impedance measuring instrument in the market at present,this research adopts single-chip microcomputer programming and AD8302 amplitude phase detection chip,and designs and realizes a kind of impedance measuring system with flexible adjustable signal source. By the test,the error is within 4%.The impedance measuring instrument requires low precision and low cost. It is used in practical applications where the accuracy of impedance measurement is not too high.
作者
姜保军
李炜
JIANG Bao-jun;LI Wei(Chongqing Jiao Tong University,Electromechanical and Vehicle Engineering,Chongqing 400074,China;Key Laboratory of Urban Rail Vehicle System Integration and Control,Chongqing JiaoTong University,Chongqing 400074,China)
出处
《电子设计工程》
2020年第3期162-165,共4页
Electronic Design Engineering
关键词
阻抗测量
幅值比、相位差测量
信号采集
impedance measurement
measurement of amplitude ratio and phase difference
signal acquisition
