触发叶轮随发动机转速而旋转，使得转速传感器或拾波线圈产生与发动机转速和活塞位置相对应的触发电压脉冲。
The trigger wheel rotates with engine RPMs and causes the speed sensor, or pickup oil, to produce triggering voltage pulses that correspond to engine speed and piston position.
详细介绍了高速旋转电弧传感器的旋转驱动电路、位置检测电路以及焊接电流采样电路。
The rotary driving circuit, position detecting circuit, and welding current sampling circuit of the high speed rotating arc sensor are introduced in detail.
增量式磁旋转编码器作为转角位置传感器，可以用四倍频的方法提高其测量精度。
The incremental magnetic rotary encoder, as a corner position sensor, can be improved its measure accuracy by the way of quadruplicated frequency circuit.
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