利用光栅位移传感器实现自由曲面的自适应跟踪测量  

The Realization of Adaptive Tracing Measurement of Freeform Surface with Grating Displacement Sensor

作　　者：邵建新[1] 袁江[1] 邱自学[1] 王菽芳[1] 

机构地区：[1]南通大学机械工程学院,江苏南通226019

出　　处：《南通大学学报（自然科学版）》2009年第1期13-15,共3页Journal of Nantong University(Natural Science Edition)　

基　　金：江苏省"六大人才高峰"资助项目(06-D-037);南通市工业科技创新计划资助项目(A5033)

摘　　要：针对非接触自由曲面测量中激光位移传感器的非线性误差问题,设计了基于LabVIEW的光栅位移反馈系统,其采用调用动态链接库的方式完成数据采集.通过对反馈系统的线性度和回程误差进行实验分析,结果表明,该方法能够实现自由曲面的自适应跟踪测量,可保证激光测头跟随被测曲面的轮廓上下调整,使传感器工作在线性测量范围内.To reduce the nonlinear error of laser displacement sensor used in non-contact freeform measurement,a LabVIEW-based grating displacement feedback system was designed,in which data collection was achieved by calling DLL.The linearity and hysterisis error of the system were tested and analyzed.The results show the method can realize the adaptive tracing measurement of freeform surface by adjusting the position of laser probe on its contour,and ensuring the sensor works within the scope of linear measurement.

关 键 词：光栅位移传感器 自由曲面 自适应跟踪测量 动态链接库 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]