双测频链有效减少±1误差在测频中的影响

Eliminating the Effect of Error±1 0n Frequency Measurement by Use Double Frequency Measuring Chain and Its Implementation

介绍利用单片机的计算和控制能力，采用两个测频计数链，以消除一般测频产生的±1误差的实现方法．

The effect of error±1 on frequency measurement can be eliminated by use double frequency measuring chain. This is a method based on computing ability and controlling ability of single chip microcomputer. Its implernentation is described in detail.