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Method for self-calibrating zero position of fine and coarse machine of double-channel multi-polar rotary transformer

A resolver, dual-channel technology, applied in the field of electronics, can solve the problems of difficult operation, time-consuming and laborious, and achieve the effect of simple and effective circuit, low cost, and fast zero-position self-calibration.

Inactive Publication Date: 2012-06-13
中国兵器工业第二〇六研究所
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Problems solved by technology

However, in the process of mass production, this kind of manual correction requires the cooperation of hardware to modify the software, which is time-consuming and laborious to operate.
Especially when the resolver is installed on a limited and small-angle movable mechanism, it will be difficult to operate

Method used

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  • Method for self-calibrating zero position of fine and coarse machine of double-channel multi-polar rotary transformer
  • Method for self-calibrating zero position of fine and coarse machine of double-channel multi-polar rotary transformer
  • Method for self-calibrating zero position of fine and coarse machine of double-channel multi-polar rotary transformer

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Embodiment Construction

[0025] Now in conjunction with embodiment, accompanying drawing, the present invention will be further described:

[0026] The embodiment of the present invention relies on the microprocessor technology and uses non-volatile memory for design, and its specific technical solution consists of two parts. The first part is the main process, and its steps are as follows: first, the microprocessor reads the code value of the current resolver fine-coarse channel from the external components; secondly, the processor reads the current resolver fine-coarse channel from the specified location of the non-volatile memory Then use the correction value to correct the code value of the fine and coarse channels respectively; finally, the corrected code value is used as the input of the combined error correction algorithm for corresponding processing. The second part is the update process of the correction value, and its steps are as follows: First, the processor enters the interrupt program ca...

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Abstract

The invention relates to a method for self-calibrating a zero position of a fine and coarse machine of a double-channel multi-polar rotary transformer, which is characterized by comprising the following steps of: measuring code values theta fine' and theta coarse' of fine and coarse channels of the double-channel rotary transformer at a calibrating time T; measuring code values of theta fine and theta coarse of the fine and coarse channels at any time t after the double-channel rotary transformer is calibrated; calculating code values of theta coarse'' and theta fine'' of the fine and coarse channels of the corrected double-channel rotary transformer; and calculating to obtain a current real angle according to theta real=f1(theta coarse'', theta fine'', p). The method disclosed by the invention is used for simultaneously correcting the two channels to find out the zero position of the certain channel without rotating the rotary transformer.

Description

technical field [0001] The invention relates to a self-calibration method for the zero position of a dual-channel multi-pole rotary transformer fine-coarse machine, which belongs to the field of electronic technology. A method for zero position self-calibration of a fine-coarse machine of a channel multi-pole resolver. The method can be applied to various types of dual-channel multi-pole resolvers. Background technique [0002] As a precision angle measuring component, the resolver is widely used in military industry, shipbuilding, aerospace, smelting, mining and other industries due to its excellent vibration resistance, shock resistance and adaptability to various harsh environments. [0003] In order to improve the angle measurement accuracy of the resolver, a dual-channel multi-pole resolver is usually selected in engineering practice. This type of resolver is a concentric sleeve shaft structure, which consists of two sets of resolvers, the fine machine and the rough m...

Claims

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Application Information

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IPC IPC(8): G01D18/00G01D5/14G01B7/30
Inventor 高栋周勇军孙向亮胡卫鹏曹富禄
Owner 中国兵器工业第二〇六研究所
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