Integrated spin-exchange relaxation-free atomic gyroscope

Abstract

The invention discloses an integrated spin-exchange relaxation-free atomic gyroscope, and the gyroscope comprises an alkali metal air chamber base, a non-magnetic electric heating assembly, a magneticfield compensation assembly, a cylindrical optical path supporting structure, a magnetic shielding cylinder, a supporting base, a demagnetizing rod, a main structure top cover, a shielding cylinder pressing structure and a laser device, wherein the supporting base provides supporting and mounting references for all parts of the gyroscope, the demagnetizing rod is used for guiding and demagnetizing the shielding cylinder and the cylindrical optical path supporting structure, the alkali metal air chamber base is used for fixing the air chamber, and the main structure top cover and the shieldingcylinder pressing structure are used for sealing the structure and fixing the magnetic shielding cylinder. The cylindrical optical path supporting structure arranged in the shielding cylinder solvesthe contradiction between the miniaturization requirement of the gyroscope and the increase of magnetic noise caused by the reduction of the volume of the magnetic shielding cylinder; the cylindricaloptical path supporting structure is compact and symmetrical, the miniaturization and engineering prospects of the gyroscope are enhanced, the magnetic noise is effectively reduced through the magnetic shielding cylinder on the outer layer, and the stability of the gyroscope is improved.

Description

technical field [0001] The invention relates to an integrated non-spin exchange relaxation atomic gyroscope. The cylindrical optical path support structure of the gyroscope placed inside the shielding tube solves the miniaturization requirements of the gyroscope and reduces the volume of the magnetic shielding tube to increase the magnetic field. The contradiction between noise, the cylindrical optical path support structure is compact and symmetrical, which enhances the miniaturization and engineering prospects of the gyroscope, and the outer magnetic shielding tube effectively reduces the magnetic noise, which is conducive to the improvement of the stability of the gyroscope. Background technique [0002] Atomic gyroscopes based on the spin-exchange-relaxation-free (Spin-Exchange-Relaxation-Free, SERF) principle have attracted much attention in the field of quantum sensing and high-precision inertial navigation due to their theoretical accuracy much higher than that of exis...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing SERF atomic gyroscope structure, provide a structure that integrates the entire optical path support structure and place it inside the magnetic shielding tube, and solve the miniaturization and engineering of the gyroscope The contradiction between demand and reducing the volume of the shielding tube will increase the magnetic noise. The integrated cylindrical optical path support structure is compact and symmetrical, which enhances the miniaturization and engineering prospects of the gyroscope, and the larger outer layer has high magnetic permeability Shielded barrel further reduces gyroscope magnetic noise

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