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Atomic spin gyroscope strapdown system based on magnetic field feedback

An atomic spin and gyroscope technology, applied in the field of inertial measurement, can solve the problems affecting the use accuracy and measurement error of atomic spin gyroscopes, achieve broad application fields and application prospects, improve performance and reliability, and improve payload. Effect

Active Publication Date: 2020-04-14
BEIJING INST OF AEROSPACE CONTROL DEVICES
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AI Technical Summary

Problems solved by technology

[0003] The atomic spin gyroscope can measure angular velocity information in two directions. Its advantage is that one gyroscope can measure the angular velocity of two axes, but its disadvantage is that if there is angular velocity in the direction perpendicular to the two input axes, it will bring measurement. Error, which affects the accuracy of the atomic spin gyroscope

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  • Atomic spin gyroscope strapdown system based on magnetic field feedback
  • Atomic spin gyroscope strapdown system based on magnetic field feedback
  • Atomic spin gyroscope strapdown system based on magnetic field feedback

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Embodiment Construction

[0036] The present invention is an atomic spin gyroscope strapdown system based on magnetic field feedback, comprising: a table body, a rate gyroscope, and an atomic spin gyroscope;

[0037] The rate gyroscope and the atomic spin gyroscope are fixedly installed on the table body;

[0038] The two sensitive axes of the atomic spin gyroscope are perpendicular to the sensitive axes of the rate gyroscope;

[0039] The rate gyroscope measures the angular velocity of the platform body around the Z axis, and the two axes of the atomic spin gyroscope measure the angular velocity of the platform body around the Y and Z axes respectively; the atomic spin gyroscope eliminates the orthogonal coupling through magnetic field compensation errors to improve measurement accuracy. The body coordinate system of the strapdown system is XYZ; the gyroscope assembly installed on the table body includes a rate gyroscope and an atomic spin gyroscope.

[0040] The atomic spin gyroscope of the strapdo...

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Abstract

The invention relates to an atomic spin gyroscope strapdown system based on magnetic field feedback. A gyroscope combination of the system adopts a rate gyroscope and a two-degree-of-freedom atomic spin gyroscope, the rate gyroscope is used for measuring the angular velocity in the orthogonal vertical direction of two sensitive axes of the atomic spin gyroscope, and the atomic spin gyroscope eliminates orthogonal coupling errors through magnetic field feedback so as to improve the measurement precision; according to the invention, a strapdown working mode is adopted, so that the mini, all-attitude and high-precision motion use requirements of a carrier can be met.

Description

technical field [0001] The present invention relates to an atomic spin gyroscope strapdown system based on magnetic field feedback, in particular to a high-precision inertial platform system adaptable to full-attitude maneuvering of a carrier, which can be applied to nuclear submarines, ballistic missiles, and cruise missiles that require full-attitude , fighter jets, etc., which belong to the technical field of inertial measurement. Background technique [0002] As an angular velocity sensor, the gyroscope is the core device in the inertial navigation system, and its performance is the key factor restricting the accuracy of the navigation system. Gyroscopes have experienced the first generation of mechanical gyroscopes (air-floating gyroscopes, liquid-floating gyroscopes, three-float gyroscopes, dynamic tuning gyroscopes, electrostatic gyroscopes, etc.), the second generation of optical gyroscopes (laser gyroscopes, fiber optic gyroscopes, etc.) instruments, etc.), the thi...

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Application Information

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IPC IPC(8): G01C21/18G01C25/00G01C21/16
CPCG01C21/16G01C21/18G01C25/005
Inventor 魏宗康
Owner BEIJING INST OF AEROSPACE CONTROL DEVICES
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