High-voltage power frequency voltage measurement method and device based on Stark effect

Abstract

The invention discloses a high-voltage power frequency voltage measurement method and device based on the Stark effect. The method includes the following steps: S1, setting m sensors for measuring theelectric field intensity of corresponding height according to the Stark effect in a line space with a height of x from the ground, and measuring the electric field values Esn corresponding to the sensors Sn; S2, calculating the average electric field value Ex according to the electric field values Esn; S3, selecting a number of height values Xi in the vertical direction of a transmission line, and calculating the measured electric field intensity values Exi corresponding to different height values according to the average electric field value Ex; and S4, calculating the voltage of the transmission line according to the measured electric field intensity values Exi. According to the invention, the spatial electric field intensity is measured by using cesium atoms excited to a high Rydberg state and utilizing the Stark effect of Rydberg atoms producing energy level splitting under the action of an external electric field according to the relationship between the degree of atomic energy level splitting and the intensity of the external electric field. High-voltage power frequency measurement of a transmission line and substation environment is realized. Non-contact voltage measurementis realized based on the method.

Description

Technical field [0001] The invention relates to the technical field of high-voltage power frequency electric fields, in particular to a method and device for measuring high-voltage power frequency voltage based on the Stark effect. Background technique [0002] The Rydberg atom is a highly excited state where the outermost electron is excited to a large main quantum number. Compared with ground state atoms, it has many unique properties. Such as long life, small energy level interval, large electric dipole moment, etc. At the same time, the electric field polarizability of Rydberg atoms is very large (proportional to the seventh power of the principal quantum number), and they are extremely susceptible to the influence of external electric fields, and their atomic energy levels will be frequency shifted or deviated under the action of external electric fields, namely Stark effect. [0003] As early as the last century, atoms have been widely used as measurement standards due to ...

AI Technical Summary

Problems solved by technology

The measurement results of the current detection device are not accurate enough, the sensitivity is not high, and the equipment is large and difficult to carry

And in the prior art, the patent application with patent publication number CN103616571A only discloses the measurement of the weak electric field, and lacks the measurement method of the high-voltage power frequency electric field and voltage

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