﻿ 基于双通道多极旋转变压器的轴角编码精度检测 The Accuracy Detection of Shaft Encoder Based on Twin-Channel Multipole Resolvers

Modeling and Simulation
Vol.04 No.02(2015), Article ID:15355,8 pages
10.12677/MOS.2015.42006

The Accuracy Detection of Shaft Encoder Based on Twin-Channel Multipole Resolvers

Cheng Li, Yongming Nie, Fu’an Sun

China Satellite Maritime Tracking and Command Department, Jiangyin Jiangsu

Received: May 6th, 2015; accepted: May 22nd, 2015; published: May 29th, 2015

ABSTRACT

During the calibration of surveillance ship in the shipyard, the detected accuracy of shaft encoder turned out which can’t meet the index needs. Aimed at this problem, the error sources of shaft encoder were theoretically analyzed in detail, and the limitations of the method of the shaft encoder detection accuracy were also analyzed. At the same time, the effective error compensation method and detection method were proposed. Experimental results indicated that the angle error of shaft encoder can be reduced from 23" to less than 5" by using error compensation method, and its precision can be detected accurately with the new detection method, which proves to be valuable and effective for radars’ shaft encoder detection.

Keywords:Shaft Encoder, Error Compensation, Accuracy Detection

1. 引言

2. 轴角编码器误差分析

2.1. 双通道多极旋转变压器原理误差

2.1.1. 双通道多极旋转变压器工作原理

(1)

(2)

(3)

Figure 1. Structure of antenna’s angle measurement system

Figure 2. Operational principle of twin-channel multi-pole resolvers

2.1.2. 双通道多极旋转变压器误差分析

1) 双通道多极旋转变压器电气误差分析

(4)

(5)

(6)

(7)

(8)

(9)

(10)

(11)

(12)

(13)

(14)

2.2. 旋转变压器数字转换器转化误差

(15)

(16)

(17)

2.3. 数码的量化误差

2.4. 误差综合分析

3. 新的检测方法的提出及误差补偿

3.1. 新的检测方法的提出

3.1.1. 激光跟踪仪

3.1.2. 激光陀螺

3.2. 误差的补偿

3.2.1. 误差补偿方案

BP神经网络自我学习的能力使其具有以任意精度逼近任意非线性连续函数的特点，并适合数据点较

Figure 3. Operation principle of RDC

Table 1. System resulting data of standard experiment

4. 结束语

Figure 4. Flow chart of learning algorithm of BP ANN

Figure 5. Comparison of before and after error compensation

The Accuracy Detection of Shaft Encoder Based on Twin-Channel Multipole Resolvers[J]. 建模与仿真, 2015, 04(02): 41-48. http://dx.doi.org/10.12677/MOS.2015.42006

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