风速：磁感应的交流电压，3每转脉冲。
Wind speed: magnetically induced AC voltage, 3 pulses per revolution.
采用电磁感应原理设计出宽频高灵敏度脉冲电流传感器。
Based on the electromagnetic induction principle, wide band and high sensitivity current sensor was developed.
研究结果表明，杀菌效果随磁感应强度的增强而增强，随脉冲数的增加而增强。
It was confirmed that the effect was improved with the rising of magnetic intensity and pulsed number.
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