According to circuit principle of the experiment of measuring magnetic field in straight solenoid by impact galvanometer, theory analysis on reducing system error is done by using numerical method.
根据冲击电流计测直螺线管磁场的实验电路原理，利用数值计算方法，对减少测量的系统误差进行了理论分析。
It is proved by analysis and experiment that the main harmonics is suppressed. The system has features of simple hardware circuit, good reliability, strong anti-interference ability and so on.
分析和实验表明，主要谐波得到抑制、系统可靠性好且抗干扰能力强。
It is proved by analysis and experiment that the main harmonics is suppressed. The system has features of simple hardware circuit, good reliability, strong anti-interference ability and so on.
分析和实验表明，主要谐波得到抑制、系统可靠性好且抗干扰能力强。
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