Chip type high-precision triaxial vector atom magnetometer

Abstract

A chip type high-precision triaxial vector atom magnetometer comprises a light path system, a coil system, an atom air chamber non-magnetic heating system and a triaxial magnetic field closed-loop control system. An optical fiber is used for guiding laser, and under the action of a collimating lens, a polarizer and a 1/4 wave plate, circular polarization laser is formed and used for polarizing alkali metal atoms. Laser penetrating through an atomic air chamber are coupled and detected through a coupling lens and a multimode optical fiber to obtain triaxial magnetic field information; the coilsystem consists of three groups of orthogonal magnetic field coils and is used for generating a compensation magnetic field; the atom air chamber non-magnetic heating system comprises an alkali metalatom air chamber, a non-magnetic heating sheet and a thermistor; the triaxial magnetic field closed-loop control system adopts a feedback compensation mode, generates a magnetic field through the coilsystem to counteract an external magnetic field, controls the atomic system to be in a zero magnetic field, and realizes triaxial magnetic field closed-loop output. Compared with the prior art, triaxial simultaneous measurement of the magnetic field can be realized, the measuring range is large, the structure is compact, and chip and engineering are easy to realize.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

Login to view more

AI Technical Summary

Benefits of technology

This patented new device solves problems associated with current devices that use an atom sensor for measuring magneents (magnetism). These limitations include poor sensitivity due to low signal levels caused by small changes in ambient temperature), difficulty achieving accurate measurements when there are strong external fields like metal objects near them, difficulties implementing multiplexed readings at different angles, and limited ability to detect weak signals from living organisms without causing damage during operation.

Problems solved by technology

This patented technical problem addressed by this patents relates to improving the performance (sensitive) and usability of an atom probe type device called a 3-axial flux quantum interferometric sensor that can measure both horizontal and vertical components of electromagnetic radiation with very good accuracy over a wide area without requiring expensive equipment such as scanning electron microscopes.

Images