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Miniature atomic gyroscope

A kind of atomic gyroscope and miniature technology, which is applied in the direction of Sagnac effect gyroscope, gyroscope/steering sensor equipment, gyroscope effect for speed measurement, etc. It can solve the problems of difficulty in practical application and huge system, and realize Miniaturization and practicality, the effect of precise measurement

Inactive Publication Date: 2007-05-23
WUHAN INST OF PHYSICS & MATHEMATICS CHINESE ACADEMY OF SCI
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Problems solved by technology

At present, there are mainly two kinds of such atomic gyroscopes realized in the world, thermal atomic beam gyroscope and cold atomic gyroscope, whose measurement accuracy is several orders of magnitude higher than any other type of gyroscope; but its shortcomings and shortcomings are The whole system is huge and difficult to be practical

Method used

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0019] According to Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5, it is known that it consists of a vacuum glass cavity 6, an atomic chip 13, an alkali metal releasing agent 20, a cross 3, an angle valve 1, a feedthrough flange 2, a double-sided Composed of flange 5 and ion pump 4, it is characterized in that the atomic chip 13 is connected with the support base 8, the support base 8 is installed in the vacuum glass chamber 6, the vacuum glass chamber 6 is connected with the four-way 3 through the double-sided flange 5, and the four-way 3 are respectively connected with the angle valve 1, the ion pump 4, and the feedthrough flange 2; the support base 8 is composed of an oxygen-free copper base 21, a ceramic base 19, four fixed poles 17, a copper electrode 18 and an oxygen-free copper wire 22. The oxygen-free copper base 21 is connected with the ceramic base 19, and the c...

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Abstract

The invention discloses a micro atoms gyroscope, which includes vacuum glass chamber, alkali metal release agent, angle valve, double flange and ion pump, biasing magnetic field base, atomic chip connected with the supporting base, the supporting base installed in the vacuum glass chamber, the vacuum glass chamber connected with the four-way through the double flange, the four-way respectively connected with the angle valve, ion pump, feed-through flange. The invention is structure simple, feasibility strong, measurement accurate, and widely used for inertial navigation.

Description

Technical field: [0001] The present invention relates to a miniature atomic gyroscope that uses cold atom interference loop to measure rotation, especially relates to a kind of using atomic chip to imprison and manipulate cold atoms, and further utilizes the interference loop formed by the guidance of atoms on the atomic chip to A miniature cold atom gyroscope for measuring rotation, which is mainly used for inertial navigation. Background technique: [0002] At present, the gyroscope used for inertial navigation is mainly an optical gyroscope. Its principle is to measure the rotational speed by using the movement of the interference fringes caused by the Sagnac effect caused by the rotation in the optical interference loop: [0003] Φ = 4 πA · Ω m η [0004] Among them, A is the area enclosed by the interference loop, Ω is the speed of rotation, and m is the mass of p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C19/00G01C19/64G01C21/18G01P9/00
CPCG01C19/58
Inventor 颜辉杨国卿王谨詹明生
Owner WUHAN INST OF PHYSICS & MATHEMATICS CHINESE ACADEMY OF SCI
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