| LDV对火炮驻退机湍流场测量精度分析 |
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| 引用本文： | 吴利民 贺安之. LDV对火炮驻退机湍流场测量精度分析[J]. 测试技术学报, 1998, 12(4): 43-45 |
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| 作者姓名： | 吴利民 贺安之 |
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| 作者单位： | 南京理工大学，南京理工大学，南京理工大学 南京 210094，南京 210094，南京 210094 |
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| 摘 要： | 对影响参考光式激光多普勒测量火炮驻退机湍流速度场精度的因素进行了分析；着重分析了由于有限渡越以及激光光束发散角所引起的多普勒频率加宽；最后提出了使用参考光式ＬＤＶ提高速度测试精度的注意事项。
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| 关 键 词： | 参考光式LDV 渡越时间 发散角 火炮 |
ACCURACY ANALYSIS OF TURBULENT FLOW FIELD OF RECOIL MECHANISM MEASURED BY LDV |
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| Wu Limin He Anzhi Yan Dapeng. ACCURACY ANALYSIS OF TURBULENT FLOW FIELD OF RECOIL MECHANISM MEASURED BY LDV[J]. Journal of Test and Measurement Techol, 1998, 12(4): 43-45 |
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| Authors: | Wu Limin He Anzhi Yan Dapeng |
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| Abstract: | The paper discusses mainly the factors that influence the results of turbulent flow field of recoil mechanism measured by reference beam LDV. We focus mainly on frequency extension caused by limited transit time and angular uncertainty. Finally, some suggestions are put forward on how to improve the velocity accuracy when using reference beam LDV. |
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| Keywords: | reference beam LDV transit time angular divergence of beam |
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