摘要
航空发动机装配过程中叶尖间隙的快速、高精度测量,对后期整机试验的技术参数和工作效率有很大的影响。针对这一测量需求,利用标靶标定原理、图像超分辨率重构技术、图像去噪和边缘检测算法,通过三轴精密位移机构、工业摄像机、计算机视觉库等工具,设计了一套叶尖间隙影像测量系统,实现叶尖间隙的非接触、高精度、快速测量。实验结果表明该测量系统可靠性好、稳定性强,测量精度达到0.015 mm。
The rapid and high precision measurement of tip clearance while aircraft engine assembling,has a great influence on the technical parameters and work efficiency of the late overall test. Aiming at such requirement,based on target calibration principle,image super-resolution reconstruction technique,Image denoising and edge detection algorithm,through the precision traxial displacement mechanism,industrial camera,open source computer vision library and so on,a set of image measurement system was designed for tip clearance,achieve the following functions that the non-contact,high precision and fast measurement of tip clearcance. Experiment result shows that the system which accuracy reachs to 0. 015 mm is with high reliability and strong stability.
出处
《西南科技大学学报》
CAS
2014年第3期90-94,共5页
Journal of Southwest University of Science and Technology
基金
四川省科技支撑计划项目(2012GZ0022)
关键词
叶尖间隙
图像超分辨
边缘检测
影像测量
Tip clearance
Image super-resolution
Edge detection
Image measurement
