【摘要】 介绍在 8 0 5 1单片控制下用可编程计数器来实现对频率进行高精度测量的一种方法———多倍周期法。此方法具有精度高、测量范围宽、采样时间短等特点。更多还原

【Abstract】 A new method for frequency measurement--the multi period method--is described It makes use of a programmable counter controlled by a single chip computer The method is characterized with a high percision,wider measuring range and shorter sampling time更多还原