Multi-working mode calibrator for aircraft standby compass

Abstract

The invention relates to a multi-working mode calibrator for an aircraft standby compass. The multi-working mode calibrator comprises a housing as well as a partition plate, a magnetic sensor, a horizontal angle sensor, a processor module, a compass rotation knob, an observation window rotation knob, a magnetic heading cursor rotation knob, an observation window locking button, a horizontal anglesensor orientation button, a reset switch, a rechargeable battery, a power source switch, a charging interface, a raspberry pie module and an electronic display which are all mounted on the housing. The multi-working mode calibrator of the invention has the working modes of two kinds of existing aircraft compass calibrators; and corresponding device operation methods are consistent; the two working modes can be mutually switched. The multi-working mode calibrator of the invention has the advantages of short calibration time, low maintenance cost, high portability, simple equipment, convenientoperation and high detection speed. Compared with a mechanical compass deviation azimuth instrument, the multi-working mode calibrator is provided with digital devices, and therefore, mechanical errorcan be decreased; and error can be calibrated in time through an algorithm, so that the multi-working mode calibrator has high operational repeatability and is low in cost during update. The multi-working mode calibrator is just slightly influenced by surrounding environments and is very suitable for on-site inspection.

Description

technical field [0001] The invention belongs to the field of aviation airborne electronic equipment maintenance engineering technology, aviation maintenance practice teaching and training, and in particular relates to a multi-working mode aircraft spare compass calibrator. Background technique [0002] At present, the spare compass of the aircraft is installed above the center of the front windshield of the cockpit, and a magnetic strip sensor is used to measure the magnetic heading of the aircraft. Due to the metal structure of the airframe and electronic and electrical equipment, there is an additional magnetic field in the aircraft, that is, the aircraft magnetic field. The aircraft's spare compass measures the synthetic magnetic field of the aircraft's magnetic field and the earth's magnetic field, and there is an error in the obtained magnetic heading, that is, aberration. Therefore, the aircraft's spare compass needs to be checked and adjusted regularly to eliminate t...

AI Technical Summary

Problems solved by technology

The airborne inertial reference system has engineering problems such as long start-up and calibration time and high maintenance costs; the mechanical error azimuth has large mechanical errors after long-term use, high frequency of repeated operations, and great damage to calibration equipment.

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