Electronic transformer calibrator

The utility model relates to an electronic transformer calibrator, which comprises a standard transformer, an isolation circuit, an integrated operational amplifier circuit, an analog / digital converter, a photoelectric conversion module, a synchronous data acquisition circuit used for collecting signals and a computer used for processing collected signals. The standard transformer is connected with the isolation circuit, the isolation circuit is connected with the synchronous data acquisition circuit through the integrated operational amplifier circuit and the analog / digital converter in sequence, the photoelectric conversion module is connected with the synchronous data acquisition circuit, and the synchronous data acquisition circuit is connected with the computer. The utility model can realize the real-time calculation of the frequency, ratio and angular difference, the display of the waveform, effective value and other parameters, the storage and aggregation as well as other functions, and can obtain more accurate and stable measurements. The calculation speed of the utility model can completely satisfy the needs. Moreover, the utility model has the advantages of small size, easy carrying and high accuracy.