电能表和采集设备时钟芯片的检测

Detection of the Clock Module in the Watt-hour Meter and the Acquisition Device

电能表和采集设备的时钟通常是由内部时钟芯片提供的,它的准确度直接关系到计费数据的准确性和公平性。文章介绍了当前主流时钟芯片的特性,研究了用于测试时钟芯片准确性的检测方法。

The clock in the watt-hour meter and the acquisition device is provided by the clock module.And its accuracy directly affects the accuracy and fairness of the charge data.In this paper,the feature of the main clock module is introduced.And detections of its accuracy are studied.