兵工自动化Issue(3)：68-70,3.DOI:10.7690/bgzdh.2015.03.018
Optotrak光学跟踪测量仪在风洞迎角测量的应用
Application of Optotrak Optical Tracking Measurement Instrument in Wind Tunnel Angle Measurement
唐亮 1杨振华 1谢艳 1杨国超1
作者信息
- 1. 中国空气动力研究与发展中心高速气动研究所，四川绵阳 621000
- 折叠
摘要
Abstract
Created an algorithm which uses vibration to conduct real-time modification and 3-dimensional transformation, in order to reduce the measurement error of angle of attack (AOA) sensor in the wind tunnel experiment. By analyzing the principle of Optotrak motion capture system, transformed the Optotrak acquisition axis to reference axis based on experimental side wall panel, calculated the variation of the AOA according to the value of marker which is captured in the reference axis model, validated by combing programming of C++ Builder and OpenCV. The analysis result showed the new algorithm can measure the model AOA with a higher accuracy compare to the AOA sensor, the measuring accuracy less than 0.015 degrees. This algorithm has advantages of high accuracy, anti-vibration-interference, instantaneous response.关键词
Optotrak系统/风洞试验/迎角/角度测量/振动实时修正Key words
Optotrak system/wind tunnel experiment/angle of attack (AOA)/angle measure/vibration real-time correction分类
信息技术与安全科学引用本文复制引用
唐亮,杨振华,谢艳,杨国超..Optotrak光学跟踪测量仪在风洞迎角测量的应用[J].兵工自动化,2015,(3):68-70,3.
