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Atom interference gravity gradient full-tensor measuring system and method

A technology of gravity gradient and atomic interference, which is applied in measuring devices, gravitational field measurement, geophysical measurement, etc., can solve the problems of reducing laser power requirements, slow measurement speed of gravity gradient full tensor, and compressing system volume, etc., to achieve improved measurement Effect

Active Publication Date: 2019-05-24
NAT INNOVATION INST OF DEFENSE TECH PLA ACAD OF MILITARY SCI
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Problems solved by technology

[0014] The embodiment of the present invention provides an atomic interference gravity gradient full tensor measurement system and method to solve the defect of slow gravity gradient full tensor measurement speed in the prior art, improve the gravity gradient full tensor measurement speed, and effectively Compress system volume and reduce laser power requirements

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  • Atom interference gravity gradient full-tensor measuring system and method
  • Atom interference gravity gradient full-tensor measuring system and method
  • Atom interference gravity gradient full-tensor measuring system and method

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Embodiment Construction

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0036] figure 1 The structure diagram of the atomic interference gravity gradient full tensor measurement system provided by the present invention, such as figure 1 As shown, the system at least includes: an interference device, a laser generator in a first direction and a laser generator in a second direction, wherein the laser generator in...

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Abstract

An embodiment of the invention provides an atom interference gravity gradient full-tensor measuring system and method. The system comprises an interference device, a first direction laser generator and a second direction laser generator, the interference device comprises multiple vacuum cavities, and a two-component atom group is prepared in each vacuum cavity and comprises a first component atomgroup and a second component atom group; the first direction laser generator generates first direction laser, the second direction laser generator generates second direction laser, the first directionlaser and the second direction laser interfere with the first component atom group and the second component atom group respectively to form interference loops, the interference loops of the first direction and the second direction are implemented at the same time and do not interfere with each other, quick measuring of gravity gradient full-tensor can be realized, and measuring speed and efficiency are improved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of atomic interference, and in particular to a system and method for measuring the gravity gradient full tensor of atomic interference. Background technique [0002] In the past 30 years, atomic interferometry has demonstrated its great advantages in the fields of high-precision gravity measurement and gravity gradient measurement, and has already surpassed the performance level of classical gravity / gravity gradient instruments. The precise measurement of gravity field is a modern navigation, geophysics , industrial production, and an important tool for basic physics research. [0003] The earth's gravitational field is the gradient of the gravitational potential, and the gravitational gradient is the gradient of the gravitational field. The gravitational gradient tensor is the rate of change of the gravitational field in space. It is a vector, that is, the second derivative of the ...

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Application Information

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IPC IPC(8): G01V7/00
Inventor 罗玉昆徐馥芳颜树华胡青青马明祥李莹颖强晓刚杨俊朱凌晓魏春华贾爱爱李期学王亚宁
Owner NAT INNOVATION INST OF DEFENSE TECH PLA ACAD OF MILITARY SCI
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