高压物理学报2012，Vol.26Issue(5)：571-576,6.
多点激光干涉测速系统和电探针技术在飞片速度测量中的应用对比
Comparison of Multi-Channel VISAR and Electric Probe Technology in Measuring Free-Surface Velocity of Metal Flyer
摘要
Abstract
Parameters of high speed object are often measured by multi-channel velocity interferometer system for any reflector (VISAR) or electric probe technology. In order to validate experimental results, and analyze test system factors affecting measurement precision, the free-surface velocity history of metal flyer driven by detonation was measured by multi-channel VISAR and electric probes. The displacement-time curve of metal flyer was calculated from the measured velocity-time curve,and then contrasted with the results measured by electric probes. Experimental results show that all v-t curves measured by multi channel VISAR are coincident well within the maximum difference of 1.45 %. And the maximum difference of time at 5,10,15 mm standoff measured by VISAR and electric probe is respectively 0. 02,0. 02,0. 07 us after modified. The difference between two sets of system at the same position increases with the movement distance of flyer, it could be resulted from the increased wave form difference of the explosive lens with the flight distance of flyer.关键词
激光干涉测速/电探针/爆轰Key words
velocity interferometer system for any reflector (VISAR)/electric probe/detonation分类
数理科学引用本文复制引用
金山,陈永涛,汤铁钢,彭其先,蒙建华..多点激光干涉测速系统和电探针技术在飞片速度测量中的应用对比[J].高压物理学报,2012,26(5):571-576,6.基金项目
基金项目：国家自然科学基金 （）
