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详细叙述了利用分电器副触点测量462-1汽油机瞬时转速的原理和方法。在此基础上分析了测量瞬时转速的误差,并与磁电或光电齿轮传感器测量瞬时转速的方法进行了比较。试验和计算证明,利用分电器副触点测量瞬时转速,其误差要小于用其它方法测量产生的误差。
Described in detail the principle and method of measuring the instantaneous speed of 462-1 gasoline engine by using the distributor’s secondary contact. On this basis, the error of measuring the instantaneous speed is analyzed and compared with the method of measuring the instantaneous speed by magnetoelectric or photoelectric gear sensor. Tests and calculations show that the use of distributor contact measuring instantaneous speed, the error is less than the error generated by other methods of measurement.