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投稿时间：2014-05-27 修订日期：2014-09-30
投稿时间：2014-05-27 修订日期：2014-09-30
中文摘要: 为了进一步拓展时栅位移传感器的应用范围，在传统场式时栅位移传感器测角系统的基础上，提出一种两相驱动型时栅位移传感器测角系统。该系统以低分辨率、低成本的圆光栅和直接数字频率合成器构成一种新的“时间行波”，结合传统时栅位移传感器的处理技术，构成一个新的测角系统。对该测角系统的误差模型进行研究。实验结果表明：该测角系统的主要误差成分为光栅信号的不正交、不等幅与残余直流电平3项误差源，通过该误差模型可以有效地减小时栅位移传感器的原始误差，提高测角系统的测量精度，精度达到±3.2″。
Abstract:In order to further expand the scope of applications of the time grating displacement sensor, a novel angle measuring system in view of a two-phase driving type time grating displacement sensor was proposed based on the traditional field type time grating displacement sensor. Position signals from grating sensor with low resolution, low-cost and time signals based on the direct digital frequency synthesizer technique were used to form one novel time traveling wave in the angle measuring system. Under the support of traditional technology from the traditional time grating displacement sensor, the time traveling wave was used to construct a new type angle measuring system. The error model of the angle measuring system was studied and the results showed that the main errors are made up of non-orthogonal grating signals, non-equal amplitude of grating signals and residual DC level. The experimental results showed that the measuring errors of time grating displacement sensor are reduced effectively, and the measuring accuracy of the angle measuring system is improved greatly and the measuring accuracy reaches ±3.2″ through the error model.
文章编号：201400566 中图分类号： 文献标志码：
基金项目:国家自然科学基金资助项目（51205434）;重庆理工大学研究生创新基金资助项目（YCX2013215）; 重庆市教委科学技术研究项目（KJ1400904）;重庆市科技计划项目（cstc2014jcyjA70003）
| 作者 | 单位 |
| 杨继森 | 重庆理工大学 机械检测技术与装备教育部工程研究中心 |
| 江中伟 | 重庆理工大学 机械检测技术与装备教育部工程研究中心 |
| 冉扬洁 | 重庆理工大学 机械检测技术与装备教育部工程研究中心 |
| 李宏伟 | 重庆理工大学 机械检测技术与装备教育部工程研究中心 |
| Author Name | Affiliation |
| Yang Jisen | |
| Jiang Zhongwei | |
| Ran Yangjie | |
| Li Hongwei |
作者简介:
引用文本：
杨继森,江中伟,冉扬洁,李宏伟.两相驱动型时栅位移传感器测角系统误差建模与分析[J].工程科学与技术,2014,46(6):139-144.
Yang Jisen,Jiang Zhongwei,Ran Yangjie,Li Hongwei.Two-phaseDrivenTimeGratingDisplacementSensorAngleMeasuringSystem Error ModelingandAnalysis[J].Advanced Engineering Sciences,2014,46(6):139-144.
引用文本：
杨继森,江中伟,冉扬洁,李宏伟.两相驱动型时栅位移传感器测角系统误差建模与分析[J].工程科学与技术,2014,46(6):139-144.
Yang Jisen,Jiang Zhongwei,Ran Yangjie,Li Hongwei.Two-phaseDrivenTimeGratingDisplacementSensorAngleMeasuringSystem Error ModelingandAnalysis[J].Advanced Engineering Sciences,2014,46(6):139-144.