High-precision magnetostatic suspension accelerometer adopting multiple quadrupole coil independent regression control technology

A technology of regression control and accelerometer, which is applied in speed/acceleration/shock measurement, acceleration measurement using inertial force, and acceleration measurement. Effect of measurement accuracy and high-precision acceleration vector measurement

Inactive Publication Date: 2019-09-10
CHINA THREE GORGES UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

The commonly used high-precision electrostatic levitation accelerometer is limited by the processing technology such as electrode orthogonality and panel symmetry, and the influence of circuit noise, parasitic force noise, environmental noise, etc. is inevitable
Existing accele

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  • High-precision magnetostatic suspension accelerometer adopting multiple quadrupole coil independent regression control technology
  • High-precision magnetostatic suspension accelerometer adopting multiple quadrupole coil independent regression control technology
  • High-precision magnetostatic suspension accelerometer adopting multiple quadrupole coil independent regression control technology

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Embodiment Construction

[0035] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. 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] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.

[0037] Such as figure ...

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Abstract

The invention discloses a high-precision magnetostatic suspension accelerometer adopting a multiple quadrupole coil independent regression control technology, used for measuring a linear accelerationof an aircraft. The high-precision magnetostatic suspension accelerometer comprises a vacuum magnetic shielding cavity system, a magnetic field displacement sensing system, a multiple quadrupole coilmagnetic suspension control system and an inspection magnet. The accelerometer disclosed by the invention realizes real-time accurate measurement on position and attitude of the inspection magnet by adopting a magnetic field displacement sensing technology and realizes accurate regression control on position and attitude of the inspection magnet by adopting a multiple quadrupole coil independent regression control magnetic suspension technology, so that the inspection magnet is controlled to be always at the center of the cavity and a location of the mass center of a spacecraft; and when the spacecraft is effected by an external nonconservative force, magnitude and direction of the acceleration can be finally accurately measured by measuring a position control coil current as the acceleration of the aircraft is in direct proportional to the position control coil current. The accelerometer disclosed by the invention can avoid a technical bottleneck of high-precision machining, is simplein production process and can realize acceleration vector measurement with higher precision.

Description

technical field [0001] The invention relates to the technical field of acceleration measuring devices, in particular to a high-precision static magnetic levitation accelerometer using multiple quadrupole coil independent regression control technology. Background technique [0002] The accelerometer is an instrument for measuring the linear acceleration of the aircraft. The high-precision accelerometer is the key load for the global gravity field mapping task of the gravity measurement satellite. It will improve the measurement accuracy of the global gravity field and establish a unified elevation reference; at the same time, it can also be used to improve the existing The space atmospheric model greatly improves the accuracy of orbit determination and orbit prediction of low-orbit satellites; for high-orbit satellites, it can measure solar light pressure to realize precise orbit determination and orbit maintenance of high-orbit satellite spacecraft; microgravity of spacecraft...

Claims

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Application Information

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IPC IPC(8): G01P15/105G01P15/08H02N15/00
CPCG01P15/0802G01P15/105H02N15/00
Inventor 杨先卫易立志潘礼庆刘敏谭超许云丽朴红光赵华任琼英邵明学许文年李建林
Owner CHINA THREE GORGES UNIV
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