对检测电火花放电状态的阀值比较法作了改进。
The threshold comparative method in detecting electrospark discharging status is improved.
紫铜电极相比石墨电极能有效避免拉弧现象，产生稳定的电火花放电；
The copper dressing electrode is preferred to plumbago one as it will result in unstable discharge between the two electrodes.
在此基础上设计了电火花放电点位置检测仪，并对其硬件及软件结构进行介绍。
At last, the EDM spark locations detector "s hardware and software structures are discussed on the basis of electromagnetic measurement method."
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