大跳动条件下的电涡流机械编码转角测量方法  

Method of Measuring Rotation Angle in Dynamic Environment Based on Eddy Current Sensor Mechanical Coding

作　　者：王飞[1] 杜强[1] 王毅[1] 万方美[1] 

机构地区：[1]中国工程物理研究院总体工程研究所,四川绵阳621900

出　　处：《仪表技术与传感器》2013年第12期73-75,共3页Instrument Technique and Sensor

基　　金：中国工程物理研究院科学技术发展基金(2011A0203010)

摘　　要：在研究预紧抱箍式结构在振动环境下的松转问题时,需在大跳动条件下实时进行相对转角的测量。采用电涡流机械编码技术降低探测器的空间分辨率,根据电涡流分布特性建立传感器输出电压与转角之间关系的简化模型。转角标定试验验证了输出电压-转角测量模型的合理性,并将该模型用于试验数据的插值处理,以提高测量精度。在该方法实际应用中,对测得的电涡流传感器输出电压数据进行滤波,并以电压信号的峰谷值确定模型参数,插值处理后完成了大跳动条件下的层间转角测量。Pre-fasten hoop structure could loose and rotate in vibration environment, and rotation angle measurement in dynam- ic environment is required. Reduced the spatial resolution by eddy current sensor mechanical coding method, the relationship model of sensor output and rotate angle based on eddy current distribution was established. The voltage-angle model was verified by rotate angle calibration test, and can be used for higher precision measurements by subsection interpolation. Filtering process was used to deal with eddy current sensor output voltage signal included relative vibration information, determined the model parameter with voltage peak and valley value, finally accomplished the measurement of rotation angle in dynamic environment.

关 键 词：机械编码 转角测量 大跳动 电涡流 

分 类 号：TG82[金属学及工艺—公差测量技术] TP21[自动化与计算机技术—检测技术与自动化装置]