论文部分内容阅读
测量电阻、电容和电感的仪器统称为测量集中参数的仪器。测量集中参数的仪器有采用电桥法的各种电桥和采用其它方法的各种L、C、R测量仪。近年来,测量集中参数的仪器有了很大的发展,大致表现在以下几个方面: 1)、集中参数测量仪器的晶体管化和集成电路化; 2)、由四臂电桥到变量器比率臂电桥; 3)、运算放大器和鉴相器原理在集中参数测量中的应用;
Instruments for measuring resistance, capacitance, and inductance are collectively referred to as instruments for measuring lumped parameters. Instruments for measuring lumped parameters include various bridges using bridge methods and various L, C, R gauges using other methods. In recent years, there has been a great development of instruments for measuring lumped parameters, which are generally manifested in the following aspects: 1) transistorization and integrated circuitization of lumped-parameter measuring instruments; 2) Arm bridge; 3), operational amplifier and phase detector principle in the application of centralized parameter measurement;