Six-parameter quantum inertial sensor and measuring method thereof

Abstract

The present invention belongs to the technical field of rotation speed, acceleration speed measurement and inertial navigation, and relates to a quantum inertial sensor capable of measuring six-parameter inertial parameters and a measuring method thereof. The quantum sensor capable of measuring the six-parameter inertial parameters comprises two-dimensional microcrystalline glass vacuum chambers, a three-dimensional microcrystalline glass vacuum chamber, differential pumping tubes and alkali metal sources, the two two-dimensional microcrystalline glass vacuum chambers are connected with three-dimensional microcrystalline glass vacuum chamber by the differential pumping tubes, and respectively with the alkali metal sources, in addition, and the differential pumping tubes are prepared from microcrystalline glass same as the material of microcrystalline glass of the two-dimensional microcrystalline glass vacuum chambers and the three-dimensional microcrystalline glass vacuum chamber. By use of a scheme of counter-throwing of cold atomic groups and combination of manipulation of the cold atomic groups by Raman beams in different directions, and measurement of six-axis-space inertial parameters can be achieved. Based on low-temperature bonding technique, microcrystalline glass is used for constructing the vacuum chambers, so that the quantum inertial sensor has better light transmitting property, is more compact in structure, higher in thermal and magnetic stability and impact resistance, and more conducive to miniaturization.

Description

technical field [0001] The invention belongs to the technical field of rotational speed, acceleration measurement and inertial navigation, and relates to a quantum sensor capable of measuring six-parameter inertial parameters and a measurement method thereof. Background technique [0002] Quantum interferometers have extremely high resolution and precision for acceleration and rotational speed. Especially after several years of research and development, quantum interferometer devices have been used in inertial navigation, geophysics and The field of basic physical parameter detection has shown great advantages and broad application prospects. [0003] At present, the quantum interferometer with the best performance realizes atomic beam current control through optical Raman transition, forms a closed loop, and obtains corresponding interference fringes. Based on this type of quantum interferometer, high-precision inertial devices such as cold-atom gyroscopes and cold-atom ac...

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Problems solved by technology

However, this type of device needs to cool atoms and have enough space to realize atomic manipulation, resulting in a large volume of cold atom gyroscopes and cold atom accelerometers. At the same time, because inertial navigation and other fields generally require the measurement of three-axis rotational speed and three-axis acceleration, therefore, Although the measurement accuracy of the inertial system constructed by cold-atom gyroscopes and cold-atom accelerometers is several orders of magnitude higher than that of other inertial systems, it is difficult to put it into practical use because the overall structure is too large and complex.

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