Rotary Axis Monitoring Equipment for Mounting Matrix Calibration of Magnetometers and Attitude Meters

Abstract

The invention provides a rotating axis monitoring device suitable for calibration of the installation matrix of the magnetometer and the attitude measuring instrument, which includes a support column (1), a laser autocollimator (2), an optical path conversion mirror (3), and a gantry (4), receiving mirror (5), connecting rod (6), attitude measuring instrument (7), non-magnetic fixture (8), non-magnetic turntable (9), installation platform (10), attitude measuring instrument electronic box (11), magnetometer electronics box (12) and magnetometer (13). The invention realizes the active monitoring of the rotation accuracy of the non-magnetic turntable through the laser autocollimator, and realizes the high-precision calibration of the installation matrix of the magnetometer and the attitude measuring instrument through subsequent error compensation. The electronics box of the attitude measuring instrument, the electronics box of the magnetometer, and the laser autocollimator are arranged away from the non-magnetic turntable, thereby effectively avoiding the electronics box of the attitude measuring instrument, the electronics box of the magnetometer, and the laser autocollimator And the interference of residual magnetism such as the background magnetic field, thus ensuring a high-precision test environment.

Description

technical field [0001] The invention relates to the technical field of aerospace precision measurement, in particular to a rotating axis monitoring device suitable for calibration of the installation matrix of a magnetometer and an attitude measuring instrument, especially an outdoor calibration suitable for the installation matrix of a magnetometer and an attitude measuring instrument Rotary axis monitoring equipment. Background technique [0002] Geomagnetism is an important part of geophysics and space physics, and it is a bridge connecting solid geophysics and space physics. It is composed of two parts, the basic magnetic field and the changing magnetic field. The basic magnetic field originates from the interior of the earth, and studying its change and origin is one of the important contents of geodynamics research; the changing magnetic field is related to changes in the ionosphere and solar activities. The study of changing magnetic fields is a hot topic in solar-t...

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Problems solved by technology

[0004] Patent ZL201420617200 mentions an eddy current sensor detection method, which overcomes the problem of low precision of traditional contact measurement. CN204052940U mentions a method for detecting the rotation accuracy of a rotating shaft using a capacitive sensor, which has the characteristics of high precision, but the above methods are all It adopts the principle of electromagnetic measurement and is not suitable for outdoor calibration that requires extremely high residual magnetism.

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