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Based on absolute inductosyn angle measuring system

Author: HeJun
Tutor: LiWenHua
School: Xi'an Optics and Fine Mechanics
Course: Control Theory and Control Engineering
Keywords: Rotary Inductosyn Electro-magnetic Induction Digital Signal Processing Dynamic Precision
CLC: TP274
Type: Master's thesis
Year: 2008
Downloads: 256
Quote: 2
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Abstract


The angular measurement system of rotary inductosyn was a kind of the angular measurement system which was based on electro-magnetic induction theories. The traditional angular measurement system of rotary inductosyn used the single-channel inductosyn,which could only measure the absolute angle within 1?720-pole inductosyn)and could not measure the absolute coordinate of the angle within the whole circle in high precision. However the angular measurement system based on absolute rotary inductosyn used the absolute rotary inductosyn. which had two winding: 720-pole winding measuring absolute angle within 1? minutely; 2-pole winding measuring absolute angle within the whole circle rudely. Enlarged、A/D converted the dual-channel inductive signal, combined the signal and exported the absolute coordinate of the angle within the whole circle. The thesis used the absolute rotary inductosyn as angle sensor,with AD2S80A as angle AD convertor and with FPGA as DSP combining and coding the dual-channel angle information, using the way of whole open loop and signal process part closed loop, designed the absolute angular measurement system. The thesis detailedly discussed the principle of the system,the hardware of the system, the circuit analysis and did some good trying in enhancing the dynamic precision of the system. At last, the thesis put forward some resolvent in anti-jam.

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