Current standard device based on quantum precision measurement

Abstract

The embodiment of the invention provides a current standard device based on quantum precision measurement and belongs to the technical field of precisionmeasurement of currents. The current standard device comprises a magnetic conducting ring provided with a gap, a first coil, a second coil, a primary side power supply, a quantum sensor and a controller. The first coil and the second coil are embedded into the magnetic conducting ring, and the second coil is used for inputting currents to be measured, wherein the number of turns of the first coil is equal to the number of turns of the second coil. The primary side power supply is connected with the first coil and used for inputting primary side currents. The quantum sensor is arranged in the gap and used for measuring magnetic field strength of the gap. The controller is connected with the primary side power supply and the quantum sensor. The controller is used for controlling the primary side power supply according to the magnetic field strength to input the primary side currents to the first coil and calculating the currents to be measured according to the primary side currents. According to the current standard device, the precision measurement of the currents can be achieved within the broadband range.

Description

technical field [0001] The invention relates to the technical field of precise measurement of current, in particular to a current standard device based on quantum precision measurement. Background technique [0002] The current standard device is one of the important measuring equipment for accurate current measurement, which has the advantages of high precision, strong anti-interference ability and easy operation. However, with the development of smart grids, current measurement devices based on the Faraday magneto-optical effect have exposed many problems in practical engineering applications, such as anti-interference problems, temperature drift problems, and accuracy problems of electronic and optical devices. Contents of the invention [0003] The purpose of the embodiments of the present invention is to provide a current standard device based on quantum precision measurement, which can realize accurate measurement of current in a wide frequency range. [0004] In or...

AI Technical Summary

Problems solved by technology

However, with the development of the smart grid, the current measurement device based on the Faraday magneto-optical effect has exposed many problems in practical engineering applications, such as anti-interference problems, temperature drift problems, and accuracy problems of electronic and optical devices.

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