Automatic calibration device for electric power experimental instrument

The invention provides an automatic calibration device for an electric power experimental instrument, and the device comprises a test configuration module, an auxiliary module, a frequency synchronization module, and an autonomous operation module, all the modules cooperate with each other to detect the frequency updating characteristics of an external reference clock, so as to diagnose whether the external reference clock is synchronized with a standard clock source, and if yes, the automatic calibration is completed. If yes, determining that the frequency of the external reference clock source is accurate and reliable, and synchronizing the initial configuration of the local crystal oscillator of the signal source to the external reference clock, thereby completing the frequency adaptive calibration, and improving the coverage rate and accuracy of the automatic calibration of the equipment. 本申请提供了电力实验仪器自动校准装置，包括：测试配置模块、辅助模块、频率同步模块、自主运行模块，各模块相互配合进行过检测外部参考时钟的频率更新特征，以此诊断外部参考时钟是否与标准时钟源同步，如果是，则认定外部参考时钟源频率准确可靠，并把