Current sensor for adjusting vector light field based on atomic spin

Abstract

The invention relates to a current sensor for adjusting a vector light field based on atomic spin. The current sensor comprises an external reflection type conical surface reflector, a cylindrical curved surface polarizer, an internal reflection type conical surface reflector, an incident half-wave plate, an emergent half-wave plate, a circular alkali metal atom gas chamber and a light beam polarization analyzer which are sequentially arranged along a symmetric optical axis O1O2, the circular alkali metal atom gas chamber is arranged in a magnetic field area generated by detected current, the reflection conical surface of the external reflection type conical surface reflector is parallel to the reflection conical surface of the internal reflection type conical surface reflector, and the reflection conical surfaces and a symmetric optical axis O1O2 form an included angle of 45 degrees. On the basis of the physical behavior that the current generates the magnetic field, the current magnetic effect and the all-optical method weak magnetic detection technology are combined, the current magnetic effect is detected through an optical method, then current information is obtained, and the light field cannot have the electromagnetic interference behavior and is not prone to being affected by external electromagnetism.

Description

technical field [0001] The invention belongs to the technical field of current sensors, in particular to a current sensor based on an atomic spin-adjusted vector light field. Background technique [0002] Current refers to the amount of electricity that passes through any cross-section of a conductor per unit time. The free charges in the conductor move in a regular direction under the action of an electric field to form a current. The current sensor is a detection device that can feel the information of the measured current, and can transform the information sensed by the detection into an electrical signal that meets certain standards or other required forms of information output according to certain rules. It widely exists in electronic systems, power transmission, transformer stations, lightning protection, electrical engineering, automation, Internet of Things, power supply systems, life sciences and other fields, and plays an important role, especially in the detection...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the surface section of the existing water pipeline is easy to freeze, thus affecting the smoothness of management

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