Microminiature integrated atom gas chamber for nuclear magnetic resonance gyroscope

Abstract

The invention discloses a microminiature integrated atom gas chamber for a nuclear magnetic resonance gyroscope. The microminiature integrated atom gas chamber consists of an inflating pipe, an air chamber base body, an air chamber top plate and an air chamber bottom plate, wherein the air chamber base body is of a trapezoidal table structure; a center through hole is formed in the air chamber base body; a flow guide groove and a transition groove are formed in the bottom surface; four inclined side surfaces of the air chamber base body are reflecting surfaces; the air chamber top plate and the air chamber bottom plate are all rectangular plates; the top surface and the bottom surface of the air chamber base body are respectively connected with the air chamber top plate and the air chamberbottom plate in a sealed way; the center through hole is sealed by the air chamber top plate and the air chamber bottom plate and form an air chamber cavity; an air guide hole communicated with the inflation pipe is formed in the air chamber bottom plate; the inflation pipe, the air guide hole, the transition groove, the flow guide groove and the air chamber cavity are sequentially communicated.The atom chamber is favorable for the miniaturization of the nuclear magnetic resonance gyroscope; composition elements are few; the wall thickness can be greater; in addition, the sealing connectionsurface is greater; the structure intensity and the sealing performance of the atom air chamber are improved; the double-light-path detection can be realized through the nuclear magnetic resonance gyroscope.

Description

technical field [0001] The invention belongs to the technical field of nuclear magnetic resonance gyroscopes, and in particular relates to a miniature integrated atomic gas chamber for nuclear magnetic resonance gyroscopes. Background technique [0002] The nuclear magnetic resonance gyroscope is a solid-state gyroscope that uses the precession of the spin magnetic moment of the atomic nucleus in a magnetic field to measure the angular velocity of an inertial object. Miniaturized nuclear magnetic resonance gyroscopes are an important research direction for new gyroscopes. The atomic gas chamber is a sealed glass container that encapsulates the working medium of the nuclear magnetic resonance gyroscope, and is the core sensitive component of the nuclear magnetic resonance gyroscope. The preparation quality of the atomic gas chamber will directly affect the performance of the NMR gyroscope. The traditional atomic gas chamber adopts a cube-shaped thin-walled glass container wi...

AI Technical Summary

Problems solved by technology

[0003] 1) Due to the thin wall thickness of the glass plate, the large number of connecting surfaces and the small area, the structural strength and sealing of the atomic gas chamber are poor, and it is prone to cracking, deformation of the transparent surface, and high air leakage during the preparation process rate and other phenomena, which will cause the failure of the atomic gas chamber preparation or the quality decline;

[0004] 2) The inflatable tube is connected to the center of one surface of the cubic atomic gas chamber, which occupies the light-transmitting surface of the atomic gas chamber, making the two faces of the atomic gas chamber lose the ability to transmit light. Using this type of atomic gas chamber When designing an NMR gyroscope, it is difficult to realize the layout design of dual detection optical paths;

[0005] 3) This type of atomic gas chamber itself has no reflective surface. During use, it needs to install reflectors externally. It fails to realize the integrated design with related reflectors, which is not conducive to the miniaturization of nuclear magnetic resonance gyroscopes.

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