互感演示仪电路的优化设计

THE GOOD DESIGN OF ELECTRIC CIRCUIT OF MUTUAL INDUCTANCE DEMONSTRATE INSTRUMENT

互感演示仪一直是大学物理教学中深受师生欢迎的演示仪器。本文介绍了它的常规发射电路。重点阐述作者通过理论和实践而对其发射电路进行了改进 ,改进后其电路简单 ,而且音质明显提高 ,减小了失真 。

The mutual inductance demonstrate instrument is welcome in teaching of physics.Thispaper introduces the electric circuit of its launch.The improvement for launch electric circuit is proved by theorem and practice.The improved circuit is simple,and tone quality is improved,lack fidelity is reduced,the effect is strengthen obviously.