从电子计数器测量周期的原理出发,分析了测周误差产生的原因并指出测周误差由量化误差、时基误差、转换误差三部分组成,在此基础上提出了减小电子计数器测周误差的几种方法;为电子计数器在频率、时间间隔等参数测量时,如何减少测量误差提供了理论依据。 Based on the principle of measuring cycle of electronic counter, the reason of measuring cycle error is analyzed and the result shows that the measuring cycle error is composed of quantization error, time base error and conversion error. On this basis, Several methods; for the electronic counter in the frequency, time interval and other parameters measured, how to reduce the measurement error provides a theoretical basis.