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Superconductive maglev positioning device assisted by gravity gradient measurement in positioning, and positioning method

A technology of positioning device and gravitational gradient, which can be used in measurement device, measurement of gravitational field, geophysical measurement, etc., and can solve problems such as error increase

Active Publication Date: 2014-11-05
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the existing inertial navigation positioning device that the error increases with time after long-term operation, and to provide a superconducting magnetic levitation positioning device

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  • Superconductive maglev positioning device assisted by gravity gradient measurement in positioning, and positioning method
  • Superconductive maglev positioning device assisted by gravity gradient measurement in positioning, and positioning method
  • Superconductive maglev positioning device assisted by gravity gradient measurement in positioning, and positioning method

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the drawings and specific embodiments.

[0018] The device of the present invention includes a cryogenic container 1, a refrigerator 2, a radiation shield 3, a superconducting rotor cavity 4, a superconducting spherical cavity 5, a superconducting rotor 6, a superconducting ball 7, a helium gas inlet pipe 8, and a helium gas outlet pipe 9. , And the inertial platform 10.

[0019] The refrigerator 2 is installed at the upper end of the cryogenic container 1. The cryogenic container 1 is placed on an inertial platform 10. The inside of the cryogenic container 1 is fixed with a roll-shaped radiation shield 3 at the lower end of the primary cold head of the refrigerator 2 through a tie rod. The secondary cold head of the refrigerator 2 is arranged in the tube of the radiation shield 3. The superconducting rotor cavity 4 is fixed at the lower end of the secondary cold head of the refrigerator 2, and the ...

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Abstract

Disclosed is a superconductive maglev positioning device assisted by gravity gradient measurement in positioning. The positioning device includes a low-temperature container (1), a refrigerating machine (2), a radiation protection screen (3), a superconductive rotor cavity (4), a superconductive ball cavity (5), a superconductive rotor (6), a superconductive ball (7), a helium inlet pipe (8), a helium outlet pipe (9) and an inertial platform (10). The inertial platform of the superconductive maglev positioning device assisted by gravity gradient measurement in positioning measures angular displacement of a carrier in space and linear accelerations at directions of x, y and z coordinate axes through the superconductive rotor (6) and the superconductive ball (7) and can also measures gravity gradient tensors at the direction of x, y and z coordinate axes. After the initial position of the carrier is known, through calculation of angular displacement and linear displacement obtained by the positioning device through measurement, real-time moving position of the carrier can be obtained and through the gravity gradient tensors which are obtained through measurement, the moving position of the carrier can also be corrected.

Description

Technical field [0001] The invention relates to a superconducting magnetic suspension positioning device and a positioning method. Background technique [0002] The continuous development of superconducting materials and cryogenic technology has made superconducting technology more and more widely used in various fields. It continues to meet the needs of my country's industrial modernization and greatly improves the performance and accuracy of various equipment. The cryogenic device is a necessary device to realize the superconducting cryogenic environment. The design and performance of the cryogenic device is the basis for the research and development of superconducting instruments and equipment, and it is of great significance. The development of refrigerators and conduction cooling technology provides more choices for the design and application of cryogenic devices. At present, the temperature of the secondary cold head of the refrigerator can reach below 4K. The superconduct...

Claims

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Application Information

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IPC IPC(8): G01V7/00G01V7/02
Inventor 胡新宁王秋良王晖崔春艳戴银明刘建华
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI