Aviation mechanism encoder correction method

An encoder and aviation technology, applied in the field of space remote sensing applications, can solve problems such as loss of turns, failure of space agencies, etc.

Inactive Publication Date: 2021-05-04
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Abstract
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  • Application Information

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Problems solved by technology

Although this method is simple, it also has certain disadvantages: first, it needs to return to zero to confirm the number of turns; secondly, in a small probability, the space agency will fail, and the number of turns stored in the software will be lost at this time

Method used

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Embodiment Construction

[0020] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] It should be noted that the terms first, second, third, etc. are used herein to describe various components or parts, but these components or parts are not limited by these terms. These terms are only used to distinguish one component or section from another component or section. Terms such as "first," "second," and other numerical...

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Abstract

The invention discloses an aviation mechanism encoder correction method, which comprises the following steps of: reading an initial zero normalized code value Z of the encoder by installing and adjusting a spaceflight mechanism; returning the spaceflight mechanism to a zero position before shutdown, setting the actual position value of the spaceflight mechanism as M, which is the sum of a circle value registered in software and an encoder value; performing starting after the spaceflight mechanism is turned off, instantly reading the normalized code value N of the encoder after being turned on, and calculating the reading of N according to a calculation formula; and calculating the actual position value X of the spaceflight mechanism according to the value N, and correcting the encoder value by the spaceflight mechanism according to the value X.

Description

technical field [0001] The invention belongs to the technical field of space remote sensing applications, and in particular relates to a correction method of an aeronautical mechanism encoder. Background technique [0002] In recent years, with the continuous development of space exploration technology, aerospace agencies have made great progress in the direction of large-scale, lightweight, high-precision and high-stability. In order to ensure the accuracy of aerospace agencies, absolute photoelectric encoders are widely used, among which single-turn absolute encoders are favored because they are smaller than multi-turn absolute encoders. Single-turn absolute encoders are often used in occasions where there are no more than one turn, but some aerospace agencies have a large stroke and require the encoder to go through the turn. At this time, the number of turns of the encoder needs to be stored separately. There are two storage methods: hardware storage and Software hostin...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D18/00
CPCG01D18/002
Inventor 赵海波张彬薛闯
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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