Quantum voltage-based electronic transformer traceability reference acquisition method and device

Abstract

The application provides a quantum voltage-based electronic transformer traceable reference acquisition method and device, the traceable reference acquisition method comprising: obtaining a first signal and a third signal; the first signal is a Josephson quantum voltage signal, the frequency of the first signal is N times the frequency of the third signal, N is an integer greater than 1; calculating the phase difference between the first signal and the third signal; obtaining a second signal, and obtaining a corrected second signal based on the phase difference and the amplitude of the first signal; in the application, the first signal is generated based on the Josephson quantum voltage, the phase difference between the first signal and the third signal is calculated, and then the phase difference is used to correct the second signal, so as to realize accurate synchronization of the first signal and the second signal, which is beneficial to output more accurate traceable reference signals, and further beneficial to improve the calibration accuracy of the to-be-calibrated equipment.

Images