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用于高超声速流场测试的电子束荧光技术 被引量:3

Electron beam fluorescence technique used in hypersonic flow field measurement
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摘要 本文介绍了一种用于高超声速流场测试的电子束荧光技术的原理和特点,叙述了电子束设备的结构及标定方法,并在JF-4B高超声速炮风洞上,对7度尖锥模型表面,在M=7.8时进行了流场密度测量,得到了平均密度和脉动信号波形,证明了这一新的测试技术是成功的. The principle and the character of electronic beam fluorescence technique used in the the hypersonic flow field measurement are introduced in this paper. The structure of electron beam device and the method of calibration are also described. Using the new technique, the flow field density in boundary layer is measured for a sharp 7 degree cone at M=7.8 in the JF-4B hypersonic gun tunnel. The average density and its fluctuating variation are presented. It is proved that the new technique can be successfully used in hypersonic flow measurement.
出处 《电子测量与仪器学报》 CSCD 1992年第4期1-5,共5页 Journal of Electronic Measurement and Instrumentation
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