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Miniaturized atomic interference gyroscope and measuring method

A measurement method, atomic interference technology, applied in the direction of steering sensing equipment, etc., can solve the problems of complex and complicated instruments

Active Publication Date: 2019-05-21
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although portable, these instruments are very complex and the equipment to run them takes up several cubic meters
Atom interferometer gyroscopes are even more complex as they require a backpropagating atom source with independent atom emission and detection systems

Method used

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Embodiment Construction

[0058] In order to illustrate the specific flow of the present invention, the following will be described in detail in conjunction with the accompanying drawings.

[0059] One: Reference figure 1 , a miniaturized atomic interference gyroscope device. The miniaturized atomic interference gyroscope device of the present invention comprises:

[0060] Vibration isolation platform (01), laser system (02), vacuum chamber (03), shell (04), anti-Helmholtz coil pair (05), alkali metal atom collection cavity (06), two-dimensional magneto-optical trap (07), two-dimensional magneto-optical trap reverse magnetic field coil pair (08), pyramid magneto-optical trap (09), detection system (10), mobile platform C (11), voice coil motor C (12), voice coil Motor control system (13), voice coil motor A (14), mobile platform A (15), mobile platform B (16), mobile platform D (17), interference cavity (18), laser beam emitter A (E1) , Laser Beam Emitter B(E2), Laser Beam Emitter C(E3), Laser Beam ...

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Abstract

The invention discloses a miniaturized atomic interference gyroscope and a measuring method. The gyroscope comprises a vibration isolation platform (01), a laser system (02), a vacuum chamber (03), atwo-dimensional magneto-optical trap (07), a pyramid type magneto-optical trap (09), a detection system (10), pre-cooling laser, a trapped laser beam, probe laser, re-pumped laser, compensated laser,blowing-away laser, a Raman laser beam pair, and a corresponding laser beam emitter and the like. In addition, according to a detecting method, a point source interferometry (PSI) technique is employed. A re-pumping laser device excite an alkali metal sample to obtain an alkali metal atomic group; an atom is captured in a pyramidal magneto-optical trap (11) by cooling and the like; after the atomfalls freely for a period of time, an extended atomic sphere is formed; and then a single extended atomic sphere is used for measuring the amount of rotation and acceleration simultaneously to realizethe gyroscope function. The miniaturized atomic interference gyroscope has a simple structure and a small size and has the high application value in the high-performance inertial navigation system.

Description

technical field [0001] The invention belongs to the field of measurement of rotation amount and acceleration in quantum precision measurement, in particular to a miniaturized atomic interference gyroscope device and measurement method Background technique [0002] Atom interferometers have been used to measure gravity, gravity gradient, rotation and acceleration. High-precision atom interferometers have potential applications in technology and fundamental physics. While high-performance atom interferometers are becoming more common in laboratory settings, there have been only a few published demonstrations on moving vehicles, including demonstrations of onboard accelerometers in vibratory and noisy environments. Although portable, these instruments are complex and the equipment to run them takes up several cubic meters. Atom interferometer gyroscopes are even more complex, as they require a backpropagating atom source with independent atom emission and detection systems. ...

Claims

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Application Information

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IPC IPC(8): G01C19/58
Inventor 吴羽峰金尚忠金怀洲方维严永强赵春柳陈君
Owner CHINA JILIANG UNIV
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