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Strong robustness data sampling method of speed ratio programmable axial angle measurement system

A strong robustness and measurement system technology, applied in the direction of measuring devices, instruments, etc., can solve problems such as jumping measurement data, affecting the normal operation of airborne equipment, and excessive errors in dynamic measurement data, achieving strong robustness, Prevent excessive errors in dynamic measurement data and large jumps in measurement data, and ensure normal operation

Inactive Publication Date: 2021-01-29
LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once disturbed, it will lead to excessive errors in the dynamic measurement data, and more seriously, it will cause a large jump in the measurement data, which will eventually affect the normal operation of the airborne equipment

Method used

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  • Strong robustness data sampling method of speed ratio programmable axial angle measurement system
  • Strong robustness data sampling method of speed ratio programmable axial angle measurement system
  • Strong robustness data sampling method of speed ratio programmable axial angle measurement system

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Embodiment Construction

[0019] Now in conjunction with embodiment, accompanying drawing, the present invention will be further described:

[0020] The working principle of the speed ratio programmable shaft angle measurement system is as follows: figure 1 shown. The coarse channel resolver-digital conversion circuit converts the resolver signal of the coarse channel into a 10-bit binary digital quantity; the fine channel resolver-digital conversion circuit converts the resolver signal of the fine channel into a 14-bit binary digital quantity; two-speed According to the speed ratio selection signals SC1 and SC2 (1:8 ~ 1:64), the processing circuit performs combined error correction on the coarse channel data and the fine channel data, and outputs a combined 20-bit binary digital quantity.

[0021] The invention relates to a robust data sampling method for a speed ratio programmable shaft angle measurement system, which includes two aspects:

[0022] First, the speed ratio selection signal is connec...

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Abstract

The invention relates to a strong robustness data sampling method of a speed ratio programmable axial angle measurement system, and belongs to the field of airborne servo motion control. The method comprises the following two aspects: on one hand, the resistance of a programmable speed ratio selection signal to external interference is enhanced; and on the other hand, the abnormality of the coarse / fine channel data reading time sequence is prevented. According to the method, the problems that dynamic measurement data errors are too large and measurement data greatly jump when the speed ratio programmable shaft angle measurement system is disturbed are effectively prevented, high robustness is achieved, and accurate angle information is provided for an airborne servo system to achieve accurate closed-loop control.

Description

technical field [0001] The invention is applied to the field of airborne servo motion control and relates to a strong robust data sampling method of a speed ratio programmable shaft angle measurement system. Background technique [0002] The airborne servo motion control system uses a speed ratio programmable shaft angle measurement system as an angle measurement device to collect the angle of the servo mechanism in real time and convert it into a digital value for high-precision digital closed-loop control. Since the airborne servo motion system works under the vibration of the aircraft and the complex electromagnetic environment, its actuators and sensors are required to have strong robustness. [0003] As one of the core sensors of the airborne servo motion control system, the speed ratio programmable shaft angle measurement system is mainly composed of a coarse channel resolver, a fine channel resolver and a two-speed resolver-to-digital converter, involving mechanical d...

Claims

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Application Information

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IPC IPC(8): G01B21/22
CPCG01B21/22
Inventor 路向明石维欣
Owner LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC