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。
Theoretic analysis and experiment prove to the anti-high over-loaded capacity of recorder, the anti-high over-loaded capacity in circuit and structure design is improved.
对记录器抗高过载能力进行理论分析和试验证明，从电路和结构设计方面考虑提高抗高过载能力。
Then the power circuit is designed. at last, with analysis of experiment data the relation of power output and transmission efficiency of transformer is researched in detail.
然后对扭矩仪的电源部分进行了设计，并通过实验数据对功放电路的输出功率和变压器的传输效率的关系作了深入的研究。
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