High-speed flyer velocity measurement system based on laser scattering | |
Jia Zhexin ; Gong Ke ; He Shufang ; Huo Yujing | |
2010-10-12 ; 2010-10-12 | |
关键词 | Practical/ aerospace instrumentation measurement by laser beam photodetectors p-i-n diodes velocity measurement/ flyer velocity measurement system laser scattering ground based system noncontact velocity measurement system PIN photodiode photodetector/ A4262E Metrological applications of lasers A0630G Velocity, acceleration and rotation measurement A0762 Detection of radiation (bolometers, photoelectric cells, i.r. and submillimetre waves detection) A9555L Aerospace instrumentation B4360E Metrological applications of lasers B7320E Velocity, acceleration and rotation measurement B7630 Aerospace instrumentation B7230C Photodetectors B7650 Ground support systems and air traffic control |
中文摘要 | High-speed flyer velocity measurement is one of the key technologies in simulating impact of space flyer driven by ground-based system. A non-contact velocity measurement system for high-speed flyer is developed, and the sources of measurement error and the way to improve the measurement accuracy are also analyzed. A high-power laser diode module is used as the light source, and a PIN photodiode is used as the photo-detector. This system utilizes lateral scattering light as the start and the end signal to measure the average velocity of flyers. Experimental results show that this system is adequate to measure the flyers lager than 100 mu m, with the velocity varying from 1 km/s to 10 km/s. And its accuracy is higher than 1. 8%. |
语种 | 中文 |
出版者 | Science Press ; China |
内容类型 | 期刊论文 |
源URL | [http://hdl.handle.net/123456789/82804] |
专题 | 清华大学 |
推荐引用方式 GB/T 7714 | Jia Zhexin,Gong Ke,He Shufang,et al. High-speed flyer velocity measurement system based on laser scattering[J],2010, 2010. |
APA | Jia Zhexin,Gong Ke,He Shufang,&Huo Yujing.(2010).High-speed flyer velocity measurement system based on laser scattering.. |
MLA | Jia Zhexin,et al."High-speed flyer velocity measurement system based on laser scattering".(2010). |
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