RLC串联谐振电路实验方法的研究与探索

Research and exploration on experimental method of RLC series resonance circuit

RLC串联谐振电路实验是"电路分析"课程中的常规实验。从传统实验电路出发,读取大量实测数据并绘制频率特性曲线。由于实际电感箱存在内阻等原因,实验结果偏离理论值较大,造成学生实验结果与理论学习脱节,为此,引入Multisim软件。采用交流分析和参数扫描分析的方法对电路进行仿真,仿真结果与理论分析完全一致,弥补和克服了传统实验存在的问题,加深了学生对理论知识的消化吸收,明显改善了教学效果。

RLC series resonance circuit experiment is a routine experiment in Circuit Analysis course. Based on the traditional experimental circuit, this paper has obtained a lot of measurement data, and frequency characteristic curves. Due to various reasons such as internal resistance of real inductor, the experimental results are more subject to greater errors than the theoretical values. It causes some disconnection between experiment and theory. So, based on Multisim software, this paper has made a simulation to RLC series resonance circuit with the analytical methods of AC analysis and parameter sweep. The simulation results are consistent with theoretical analysis. This offsets and overcomes the problems in the traditional experiments, and deepens students chew and digest to theoretical knowledge. Teaching effect is obviously improved.