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本文讨论了用微处理器进行转速精确测量的数据采集。利用软件对转速传感器输出脉冲的周期进行计数,并利用倍乘2~m脉冲周期的方法,使软件计数不管在测量高转速或测量低转速时均能达到一定的位数,从而使得在不同转速测量时均具有大致相向的高精度。此法所用硬件少,测量转速范围宽,速度快,也很经济。
This article discusses the use of microprocessors for accurate measurement of speed data acquisition. Using the software to count the cycle of the output pulse of the rotational speed sensor and make use of the multiplication 2 ~ m pulse cycle to make the software count reach a certain number of digits regardless of the high speed or low speed measurement, When measured with roughly the same high-precision. This method uses less hardware, measuring speed range, speed, but also very economical.