传感技术学报2026，Vol.39Issue(4)：719-726,8.DOI:10.3969/j.issn.1004-1699.2026.04.004
轴偏心对磁流体微角振动传感器输出特性的影响分析
Analysis of the Influence of Shaft Eccentricity on the Output Characteristics of Magnetofluid Micro-Angle Vibration Sensor
摘要
Abstract
With the upgrade of the detection distance requirements in the aerospace field at the national strategic level,the influence of micro-angle vibration on the payload pointing accuracy is becoming more and more obvious.The magnetofluid micro-angle vibration sen-sor has the characteristics of low noise,wide frequency band,and impact resistance,and is currently the most suitable method for on-or-bit micro-angle vibration measurement.In fact,when the ferrofluid micro-angle vibration sensor is installed on the carrier to achieve high-precision angular vibration measurement,there is an inevitable deviation between the sensitive axis of the sensor and the rotating axis of the carrier.The influence of shaft eccentricity on the output characteristics of magnetofluid micro-angle vibration sensor is quanti-tatively analyzed through finite element simulation,and the influence of shaft eccentricity on the motion state of the conductive fluid in-side the sensor is explored.The simulation results show that with the increase of the shaft eccentricity distance,the output sine good-ness-of-fit and noise characteristics of the sensor become worse,and the scale factor will gradually decrease with the increase of the ec-centricity distance.关键词
磁流体/微角振动传感器/有限元仿真/轴偏心/误差分析Key words
magnetic fluid/micro-angle vibration sensor/finite element simulation/axis eccentricity/error analysis分类
机械制造引用本文复制引用
李醒飞,刘欣雨,拓卫晓,王天宇,邢伟达..轴偏心对磁流体微角振动传感器输出特性的影响分析[J].传感技术学报,2026,39(4):719-726,8.基金项目
国家自然科学基金青年基金项目(62203322) （62203322）
中国博士后科学基金面上项目(2022M712372) （2022M712372）
