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精密测量旋转物体的低转速和周期性的机械摆动速率,在工业生产和科学实验中具有重要意义。对低转速的测量只能采用测周期的方法,而转速与周期成反比,很难做成直读式仪表。据了解,目前对于每分钟低于100转的转速还没有一个很好的测试方法。我们运用转速-时间间隔相互转换的原理,即先测量出被测物体旋转一周或一定角度所需的时间,再将此时间转换为转速,做成了非接触式低速测速仪。由于采用了Z-80单板机,
Precise measurement of low-speed rotating objects and periodic mechanical swing rate, in industrial production and scientific experiments of great significance. The measurement of low speed can only be measured using the method of measuring the cycle, and the speed is inversely proportional to the cycle, it is difficult to make a direct-reading instrument. It is understood that at present there is not a good test method for the speed of less than 100 revolutions per minute. We use the principle of speed-time interval conversion, that is, the measured object first measured a week or a certain angle of rotation time, and then converted to the speed of time, made a non-contact low-speed gun. As a result of the Z-80 single board machine,