谐振法测量交流电路参数的设计与研究

Design and Research of Resonance Method for Measuring AC Circuit Parameters

交流电路参数测定是“电工测量”实验教学中的基础内容,本文从工程实际出发,设计提出一种参数测定的新方法,即以单相电机为负载,利用简单的RLC串联谐振电路来测量实际电路的等效参数。实验证明,与“三表法”电路相比,谐振法实验不仅内容多、综合性强,与生产实际也更为紧密,将其应用于实践教学中,不仅提高学生的理论应用能力,而且能为基础实验开展综合性实践教学留有更多的设计和选做空间。

The measurement of AC circuit parameters is the basic content of the experimental teaching of Electrical Measurement.Based on the engineering practice,this paper proposes a new method of parameter measurement,which is,using a simple RLC series resonant circuit to measure the equivalent parameters of the actual circuit with a single-phase motor as the load.The experiment has proved that compared with the“three meter method”circuit,the resonance method experiment is not only more comprehensive,but also more closely related to the production practice.Applying it to practical teaching will not only improve the students theoretical application ability,but also leave more design options for the comprehensive practical teaching of basic experiments.