| RTR系统测试精度的改进 |
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| 引用本文： | 李江,陈剑,何国强,蔡体敏.RTR系统测试精度的改进[J].推进技术,1999,20(4):109-112. |
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| 作者姓名： | 李江 陈剑 何国强 蔡体敏 |
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| 作者单位： | 西北工业大学航天工程学院,西安,710072 |
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| 摘 要： | 对目前使用的ＲＴＲ系统中存在的问题进行了分析，指出影响ＲＴＲ系统测试精度的主要原因是高速运动分析仪的图像分辨率太低及Ｘ射线系统本身造成的系统误差。总结了提高ＲＴＲ系统测试精度的措施，包括提高变压器的稳压性能，改进实验器设计水平，提高试车台架的刚性以及运用图像处理技术等，将这些改进措施应用于ＳＲＭ燃烧室凝相粒子运动规律的实验研究，取得了比较明显的效果。
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| 关 键 词： | X射线分析，图像处理，误差分析，固体推进剂火箭发动机 |
| 修稿时间： | 1998-07-31 |
IMPROVEMENT OF MEASUREMENT ACCURACY OF RTR SYSTEM |
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| Li Jiang,Chen Jian,He Guoqiang and Cai Timin.IMPROVEMENT OF MEASUREMENT ACCURACY OF RTR SYSTEM[J].Journal of Propulsion Technology,1999,20(4):109-112. |
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| Authors: | Li Jiang Chen Jian He Guoqiang and Cai Timin |
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| Abstract: | The problems in the present RTR(X ray Real time Radiography)system were discussed. The main reasons decreasing the measurement accuracy of RTR system were the low image resolution of high speed motion analyzer and the system error caused by the X ray system.Several available measures to improve the measurement accuracy of RTR system are summarized.These measures included the improvement of the stabilization property of voltage transformer,the enhancement of design level of test motor,the increase of the stiffness of test stand and the application of image processing techniques.These measures are used in the study of motion pattern of particles in SRM chamber and the measurement accuracy is improved obviously. |
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| Keywords: | X ray fluorescence analysis Solid propellant rocket engine Image processing Error analysis |
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