重庆理工大学学报2024，Vol.38Issue(1)：248-254,7.DOI:10.3969/j.issn.1674-8425(z).2024.01.027
绝对式圆时栅偏心状态自诊断测量方法研究
Research on self-diagnostic measurement method of absolute circular time-grating eccentricity state
摘要
Abstract
To address the problem that the measurement accuracy of the circular time-grating sensor is adversely affected by the large first harmonic wave error due to the non-concentricity of the stator and rotor during the installation process,this paper proposes a self-diagnostic measurement method of the absolute circular time-grating eccentric state based on the multi-reading heads structure.In this structure,a single reading-head and four independent reading-heads are respectively arranged in the inner and outer rings of the circular time-grating rotor.According to the phase comparison relationship between the inner and outer ring induction signals,the degree of sensor eccentricity is assessed to realize the self-diagnostic measurement function of the sensor under the eccentric state.The measuring system built by LabVIEW simultaneously processes the phase meter values of the single induction signal in the inner ring and the four induction signals in the outer ring,obtains the absolute position information of the sensor and displays the absolute angular displacement value.Our experimental results show the measurement error accuracy of the sensor prototype is±1"in the whole week after the adjustment and installation,substantially improving the measurement accuracy of the sensor.关键词
多测头/圆时栅/安装偏心/自诊断Key words
multi-reading heads/circular time-grating/installation eccentric/self-diagnostic分类
机械制造引用本文复制引用
陈磊,于治成,许小虎,樊星辰,李佳豪..绝对式圆时栅偏心状态自诊断测量方法研究[J].重庆理工大学学报,2024,38(1):248-254,7.基金项目
重庆市教委科学技术研究项目(KJQN202001133) （KJQN202001133）
重庆市教委"成渝地区双城经济圈建设"科技创新项目(KJCX2020043) （KJCX2020043）
