Two-degree-of-freedom atomic interference gyroscope

Abstract

The invention discloses a two-degree-of-freedom atomic interference gyroscope. The two-degree-of-freedom atomic interference gyroscope comprises an atom preparation module for preparing a magneticallyinsensitive atomic group and vertically throwing the prepared atomic group upward; an atomic interference module for acting Raman light on the atomic group when the atomic group is thrown to an interference area, so that the atomic group is split toward two coaxial directions, respectively reflecting beams in two directions and respectively making the beams reflected in two directions overlap with the original atomic group, wherein the reflected beam in each direction is overlapped with the original atomic group to form atomic interference in the direction, and then simultaneous interferenceof the atomic group in the two directions is realized; and an atomic detection module for detecting the atomic group subjected to the simultaneous interference in the two directions by using the Ramanlight, respectively selecting the numbers of atoms in a preset momentum state in the two directions, and determining the rotating speeds in the two directions at the same tie by using the numbers ofthe atoms in the preset momentum state in the two directions. The two-degree-of-freedom atomic interference gyroscope disclosed by the invention realizes two-axis simultaneous interference, and simultaneously realizes the measurement of the two-axis rotating speed.

Description

technical field [0001] The invention relates to the technical field of inertial measurement, and more specifically, to a two-degree-of-freedom atomic interference gyroscope. Background technique [0002] Due to the advantages of autonomous navigation, the inertial navigation system has been rapidly developed and widely used in aviation, land, and underwater navigation. In the inertial navigation system, the magnitude and direction of acceleration and rotational speed are constantly changing. Given the precise positioning, it is necessary to specify the magnitude of different accelerations and rotational speeds at the same time. Therefore, it is very important to realize the simultaneous measurement of multi-axis acceleration and rotational speed for inertial navigation systems. In addition, it has important application prospects in basic scientific research, gravity measurement, resource exploration, gravity-assisted navigation and other fields. [0003] In terms of speed ...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the defects of the prior art, the purpose of the present invention is to solve the technical problem that the prior art cannot realize simultaneous measurement of multi-axis rotational speed

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