Abstract：To measure the line recession of thermal protection materials on stagnation aero of hypersonic vehicle, an optical method of projective recession measurement (PRM) is described. The line recession was obtained by calibrating the proportional coefficient between camera and model, collecting ablative video of model and image processing. The method was applied to measure 4 materials under two states, the frequency of the measurement is 25Hz, and the error of the measuring results is less than 0.16mm. The measuring results can be applied to ablation analysis.
［1］国义军, 桂业伟, 童福林, 等. 碳/碳化锆复合材料烧蚀机理和计算方法研究［J］. 空气动力学学报, 2013, 31(1): 22-26.
［2］OISHI T, MARTINEZ E R, SANTOS J A. Development and application of a TPS ablation sensor for flight［C］//46th AIAA, Reno, Nevada, 2008: 7-10.
［3］MARTINEZ E R, VENKATAPATHY E, OISHI T. Current developments in future planetary probe sensors for TPS［C］//Proceedings of the International Workshop Planetary Probe Entry and Descent Trajectory Analysis and Science, Lisbon, Portugal, 2003: 6-9
［4］杨福俊, 孙伟, 蒋明, 等. 基于高速图像采集与时间序列图像相关的维陀螺动力学特性测试［J］. 计量学报, 2006,27(4): 347-351.
［5］SHERROUSE P, CARVER D. Demonstated real_time recession measurements of flat materials during testing in high enthalpy flows［C］//30th AIAA, Reno, Nevada,1992: 6-9.
［6］SCHAIRER E T, HEINECK J T, Photogrammetric recession measurements of ablative materials during arcjet testing［C］//45th AIAA, Reno, Nevada, 2007: 8-11.
［7］SCHAIRER E T, HEINECK J T. Photogrammetric recession measurements of ablative materials in the NASA ames 60-Megawatt arcjet［C］//22nd International Congress on Instrumentation in Aerospace Simulation Facilities, Pacific Grove, CA, 2007: 10-14.
［8］孙翔宇, 张炜, 胡淑芳, 等. 绝热材料动态烧蚀试验方法［J］. 推进技术, 2011, 32(4): 597-600.
［9］陈连忠. 塞块式瞬态量热计测量结果修正方法的研究［J］. 计量学报, 2008,29(4): 317-319.
2016, Vol. 37 
