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A combined solution method and system for dual-channel multi-pole resolver

A resolver, two-channel technology for sensor measurement

Active Publication Date: 2022-03-04
BEIJING AEROSPACE TIMES OPTICAL ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no research on the solution of dual-channel multi-pole resolver based on AD2S1210 chip

Method used

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  • A combined solution method and system for dual-channel multi-pole resolver
  • A combined solution method and system for dual-channel multi-pole resolver
  • A combined solution method and system for dual-channel multi-pole resolver

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Such as figure 1 , in this embodiment, the combined solution method of the dual-channel multi-pole resolver is mainly aimed at the dual-channel multi-pole resolver using the AD2S1210 chip, and the specific calculation process includes the following steps:

[0046] Step 101, determine the parameter information of the dual-channel multi-pole resolver.

[0047] In this embodiment, the parameter information includes: the data bit width n of the chip of the dual-channel multi-pole resolver and the pole-to-number ratio 1:p of the dual-channel multi-pole resolver.

[0048] Preferably, the data bit width n of the chip of the dual-channel multi-pole resolver can be determined in the following manner: determine the connection between the first resolution selection pin RES1 and the second resolution selection pin RES0 of the dual-channel multi-pole resolver mode; wherein, when both RES0 and RES1 are connected to low level, determine the data bit width n=10; when RES0 is connected...

Embodiment 2

[0074] On the basis of the above embodiments, the following will be described in conjunction with a specific example.

example 1

[0075] Example 1, for a dual-channel multi-pole resolver based on the AD2S1210 chip, the data bit width is n=16, the pole-to-pole ratio is 1:36, the measured value of the coarse channel is 0x4E7C, and the value of the fine channel is 0x13A1.

[0076] Through the above formula (1) and formula (2), it can be calculated that the calculated value of the coarse channel is 110.3686523°, and the calculated value of the fine channel is 0.76675415°.

[0077] Further, through the above formula (3), it can be obtained: the calculated value of the dual channel is: 110.76675415°.

[0078] Because the following correction conditions are not met:

[0079] and

[0080] and

[0081] Therefore, 110.76675415° is directly output as the final combined solution result.

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Abstract

The invention discloses a combined solution method and system for a dual-channel multi-pole rotary transformer. The method includes: determining parameter information of a dual-channel multi-pole rotary transformer; wherein, the parameter information includes: a dual-channel multi-pole rotary transformer The data bit width n of the resolver chip and the pole-to-number ratio of the dual-channel multi-pole resolver are 1:p; according to the determined parameter information, the coarse channel solution value and the fine channel solution value are calculated respectively; according to the coarse channel The calculated value and the refined channel calculated value are combined and calculated by two channels to obtain the calculated value of the two channels; the calculated value of the two channels is corrected and judged, and the combined calculation result is output according to the judgment result. The invention realizes the calculation and error correction of the dual-channel resolver with any number of pole pairs.

Description

technical field [0001] The invention belongs to the technical field of sensor measurement, and in particular relates to a combined solution method and system based on a dual-channel multi-pole resolver. Background technique [0002] The resolver is a high-precision electromagnetic induction sensor. In order to improve the accuracy of angle measurement, dual-channel multi-pole rotary transformers are often used. Among them, the measurement range of the coarse channel is 0-360°, the precision is low, and the error is large; the fine channel is a multi-pair pole resolver, and the measurement accuracy is high. For the fine channel of the p-pair resolver, the measurement range is 0~360° / p. [0003] Resolvers generally cooperate with peripheral circuits to realize resolver drive, signal conditioning and output calculation. The dual-channel multi-pole resolver based on the AD2S1210 chip is such a resolver with 10-bit to 16-bit resolution. It integrates on-chip programmable sine w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D5/14
CPCG01D5/14
Inventor 张殊冉李智张耀军吉云飞李方正仇立伟路璐
Owner BEIJING AEROSPACE TIMES OPTICAL ELECTRONICS TECH