System and method for improving the angle measuring accuracy of inductosyn

A technology of inductive synchronizer and angle measurement accuracy, which is applied in the direction of instruments, measuring devices, and electric devices, etc., which can solve the problems of inability to quickly and quantitatively adjust the resistance value, angle measurement system error, drift, etc., to achieve convenient online programming and improve Effect of Angle Measurement Accuracy

Inactive Publication Date: 2019-02-26
TIANJIN JINHANG INST OF TECH PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the traditional adjustment methods use passive resistance-capacitance networks. This method cannot quickly and quantitatively adjust the resistance value during the adjustment process, and it is prone to drift due to environmental influences after adjustment, causing errors in the angle measurement system.

Method used

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  • System and method for improving the angle measuring accuracy of inductosyn

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Embodiment Construction

[0021] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] like figure 1 As shown, the present invention firstly provides a system for improving the angle measurement accuracy of an inductive synchronizer, including a digital potentiometer, an active phase shifting circuit, and an FPGA.

[0023] Among them, the output end of the digital potentiometer is connected to the resistance adjustment end of the active phase shifting circuit, the timing control signal is connected to the FPGA, and the output of the digital potentiometer is controlled by FPGA programming, and then the phase lead or lag characteristics of the signal connected to the active phase shifting circuit are adjusted. , The digital potentiometer chooses AD5162, because it is a digital integrated device, the...

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Abstract

The invention relates to a system and a method for improving the angle measuring accuracy of an inductosyn, belonging to the technical field of an inductosyn angle measuring system. A digital potentiometer, a FPGA and an active phase shift circuit are used to form a programmable signal phase adjustment unit, and the phase difference of two signals is adjusted through FPGA programming, so that theangle measurement accuracy of the system is improved.

Description

technical field [0001] The invention belongs to the technical field of an angle measurement system of an induction synchronizer, and in particular relates to a system and a method for improving the angle measurement accuracy of an induction synchronizer. Background technique [0002] At present, the angle measurement system composed of inductive synchros has been widely used. In the angle measurement system of the induction synchronizer, it is necessary to adjust the phase difference between the SIN signal output by the induction synchronizer and the excitation signal, and adjust the phases of the two signals to be consistent, so as to ensure the angle measurement accuracy of the system. Most of the traditional adjustment methods use a passive resistance-capacitance network. This method cannot quickly and quantitatively adjust the resistance value during the adjustment process, and is prone to drift due to environmental influences after adjustment, causing errors in the angl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/30
CPCG01B7/30
Inventor 杨玉良
Owner TIANJIN JINHANG INST OF TECH PHYSICS
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