Adjusting device for installation orientation of aircraft inertial navigation device based on gyro north finder

Abstract

The invention discloses a device for adjusting the installation orientation of an aircraft inertial navigation device based on a gyro north finder. The invention can effectively realize the adjustment of the installation orientation of the inertial guide on the aircraft, and has the advantages of simple and convenient use, good reliability, high adjustment accuracy and good universality. The present invention includes a frame and an optical axis intercepting device and an adjustment platform installed on the frame, wherein the adjustment platform is composed of a connection plate and a sight, a vertical collimator, a north finder and a level instrument installed on the connection plate ; The device uses optical measurement combined with an adjustment mechanism to make the coordinate system of the device parallel to the aircraft coordinate system, and then combines the inertial measurement method with the adjustment structure to make the inertial navigation coordinate system parallel to the aircraft coordinate system, thereby ensuring that the inertial navigation coordinate system on the aircraft is in line with the aircraft coordinate system. The coordinate system is parallel to achieve the purpose of inertial navigation installation and azimuth adjustment on the aircraft.

Description

Technical field [0001] The invention relates to the technical field of inertial measurement, in particular to a device for adjusting the installation position of an aircraft inertial navigation device based on a gyro north finder. Background technique [0002] The inertial navigation device (inertial navigation for short) is installed on the aircraft. Due to long-term body deformation or other reasons, the inertial navigation installation position drifts, which affects the flight accuracy of the aircraft and the accuracy of the target hit. Therefore, it is necessary to periodically adjust the position. The so-called azimuth adjustment is to adjust the inertial navigation azimuth and the aircraft azimuth (the direction of the aircraft longitudinal axis) to be consistent. The traditional method of orientation adjustment is a technical solution using an L-shaped hanging plate (that is, a rigid connecting bracket). Its disadvantages are that the hanging plate is easily deformed and b...

AI Technical Summary

Problems solved by technology

The traditional azimuth adjustment method is to adopt the technical solution of L-shaped hanging plate (that is, the hard connection bracket). The disadvantage is that the hanging plate is easy to deform and heavy, inconvenient to operate, and difficult to guarantee the adjustment accuracy.

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