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Superfluid gyroscope apparatus based on cold atom gas quantum vortex

A quantum vortex and superfluid technology, which is applied in steering sensing equipment and other directions, can solve problems such as difficult manipulation, and achieve the effects of overcoming difficult manipulation, solving atomic collision relaxation problems, and avoiding damage

Inactive Publication Date: 2015-11-18
PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV +1
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Problems solved by technology

[0006] The technical problem of the present invention is: to overcome the atomic spin collision damage relaxation problem of the atomic spin gyroscope, improve the sensitivity and precision of the gyroscope; overcome the shortcomings of the superfluid gyroscope based on the liquid He quantum vortex, which are not easy to control, etc.

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  • Superfluid gyroscope apparatus based on cold atom gas quantum vortex
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  • Superfluid gyroscope apparatus based on cold atom gas quantum vortex

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Embodiment Construction

[0024] specific implementation plan

[0025] Please refer to figure 1 , and combined with Figure 2 to Figure 5 As shown, a superfluid gyro device based on a cold atomic gas quantum vortex of the present invention includes a vacuum system, a laser cooling and confinement system, an excitation system, a timing control system, an information detection system, and an angular rate calculation system. The principle schematic diagram of the superfluid gyro based on the cold atomic gas quantum vortex of the present invention is as follows figure 2 shown.

[0026] The vacuum system adopts a double-chamber structure, one of which is used to generate better than 10 -9 The high vacuum of mbar realizes a two-dimensional magneto-optical trap as a source of cold atoms; another produces better than 10 -11 The high vacuum of mbar is used to generate three-dimensional magneto-optical traps and prepare gaseous superfluids. When vacuuming, mechanical pump, molecular pump and ion pump are u...

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Abstract

The present invention relates to a superfluid gyroscope apparatus based on cold atom gas quantum vortex. The superfluid gyroscope apparatus comprises a vacuum system, a laser cooling and trapping system, an excitation system, a time sequence control system, an information detection system, and an angular velocity resolving system. According to the present invention, the laser is used to cool the atom to achieve the gas-state superfluid, such that the atom collision relaxation problem in the atomic spin gyroscope is effectively solved, and the disadvantage that the superfluid gyroscope based on the liquid He quantum vortex is difficult to control is effectively overcome; and the high-throughput cold atom beam scheme of the double magneto-optical trap is used, such that the damage of the background atom in the first-stage gas chamber on the second-stage gas chamber interference environment can be avoided, and the high-throughput easily-captured atoms can be provided for the second-stage gas chamber. The present invention belongs to the technical field of novel quantum gyroscopes, and the superfluid gyroscope apparatus can be used for the superfluid gyroscope design based on the cold atom gas.

Description

technical field [0001] The invention relates to a superfluid gyroscope device of a cold atomic gas quantum vortex, which is suitable for the design of a novel ultra-high precision and ultrahigh sensitivity superfluid gyroscope device. technical background [0002] From the end of the 19th century to the present, gyroscopes, as the main inertial navigation detection equipment, have played an important role in the military and civilian fields. The traditional concept of gyroscopes is sensitive to the angular motion of the gyroscope shell relative to the inertial space through the moment of momentum generated by the rotation of the rotor. Fiber optic gyroscopes and laser gyroscopes use the sagnac effect. This gyroscope no longer has a high-speed rotating rotor, but is based on a new physical mechanism to complete the measurement of the movement of the shell relative to the inertial space. In recent years, with the rapid development of low-temperature physics and other fields, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C19/58
CPCG01C19/58
Inventor 任元陈晓岑赵玉龙王卫杰辛朝军夏长峰邓茂林李基许国锋
Owner PLA PEOPLES LIBERATION ARMY OF CHINA STRATEGIC SUPPORT FORCE AEROSPACE ENG UNIV
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