可识别微层裂前界面的阶跃信号电探针测试技术
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摘要
受微喷射物质干扰,现常用的测试技术难以对复杂结构金属样品微层裂前界面进行准确识别,针对该问题提出阶跃信号电探针测试技术。对传统电探针受微喷射物质干扰出现不正常放电现象的原理进行分析,设计阶跃信号形成电路。开展锡金属样品爆轰实验,对比传统电探针和阶跃信号电探针的放电波形,分析阶跃信号电探针数据解读方法,联合X光测试技术,对阶跃信号电探针放电波形阶跃信号高电平出现时刻进行检定。实验结果表明:阶跃信号电探针测试技术能够识别微喷射物质的干扰,可用于爆轰加载下金属样品微层裂前界面的识别。
Effected by micro-jetting,the usual measuring technologies are hard to recognise the front surface of micro-spall of a metal sample that is of complex structure.In this paper,a step-signal electric-probe measuring technology is proposed to solve this problem.The abnormal discharging phenomenon of the conventional electric probe is analyzed under the effect of micro-jetting and the step-signal producing circuit is designed.Explosive load experiments on Sn metal samples are carried out.The discharging signals of the conventional electric probe and step signal electric probe are compared and the useful information of the step signal is analyzed.Compared to X-ray photograph,we get that the position where the high voltage of step signal responses is the front surface of micro-spall.The results of the experiment show that the step-signal electric probe is able to distinguish the effect of micro-jetting and recognise the front surface of micro-spall of the metal samples under explosive load.
Effected by micro-jetting,the usual measuring technologies are hard to recognise the front surface of micro-spall of a metal sample that is of complex structure.In this paper,a step-signal electric-probe measuring technology is proposed to solve this problem.The abnormal discharging phenomenon of the conventional electric probe is analyzed under the effect of micro-jetting and the step-signal producing circuit is designed.Explosive load experiments on Sn metal samples are carried out.The discharging signals of the conventional electric probe and step signal electric probe are compared and the useful information of the step signal is analyzed.Compared to X-ray photograph,we get that the position where the high voltage of step signal responses is the front surface of micro-spall.The results of the experiment show that the step-signal electric probe is able to distinguish the effect of micro-jetting and recognise the front surface of micro-spall of the metal samples under explosive load.
引文
[1]CHEN Yongtao,HU Haibo,TANG Tiegang,et al.Experimental study of ejecta from shock melted lead[J].Journal of Applied Physics,2012,111:053509.
[2]DURAND O,SOULARD L.Power law and exponential ejecta size distributions from the dynamic fragmentation of shock-loaded cu and sn metals under melt conditions[J].Journal of Applied Physics,2013,114:194902.
[3]BUTTLER W T,ORO D M,OLSON R T,et al.Second shock ejecta measurement with an explosive driven twoshockwave drive[J].Journal of Applied Physics,2014,116:103519.
[4]HOLTKAMP D B,CLARK D A,FERM E N,et al.A survey of high explosive-induced damage and spall in selected metals using proton radiography[C]∥Shock Compression of Condensed Matter,2003:477-482.
[5]张崇玉,胡海波,李庆忠,等.柱面内爆驱动下铅飞层对碰区动载行为实验研究[J].高压物理学报,2013,27(6):884-886.ZHANG Chongyu,HU Haibo,LI Qingzhong,et,al.Experimental study on dynamic behavior of the collision region of lead tube driven by cylinderical implosion[J].Chinese Journal of High Pressure Physics,2013,27(6):884-886.
[6]黄正平.爆炸与冲击电测技术[M].北京:国防工业出版社,2006:71-106.
[7]金山,陈永涛,汤铁钢,等.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.JIN Shan,CHEN Yongtao,TANG Tiegang,et al.Comparison of multi-channel visar and electric probe technology in measuring free-surface velocity of metal flyer[J].Chinese Journal of High Pressure Physics,2012,26(5):571-576.
[8]孙永强,何智,王珺.一种高精度爆速测量方法[J].含能材料,2012,20(3):329-332.SUN Yongqiang,HE Zhi,WANG Jun.a precision experiment method of measurement detonation velocity[J].Chinese Journal of Energetic Materials,2012,20(3):329-332.
[9]唐敬友,伍绍珍,王藩侯,等.冲击波加热的氦气与氩气对电探针导通的影响[J].高压物理学报,2000,14(4):285-290.TANG Jingyou,WU Shaozhen,WANG Fanhou,et al.The effect of shock heated gaseous helium and argon on pin shorting[J].Chinese Journal of High Pressure Physics,2000,14(4):285-290.
[10]胡杨,胡美娥,张宇红,等.分布参数与绝缘性变化对脉冲形成网络的影响[J].高能量密度物理,2014(2):62-67.
[11]胡杨,胡美娥,陈永涛,等.分布参数与绝缘性对电探针脉冲形成电路影响浅析[J].测控技术,2015,34(8):5-11.HU Yang,HU Meie,CHEN Yongtao,et al.Effect of distribution parameter and insulativity on electric probe pulse-generating circuit[J].Measurement&Control Technology,2015,34(8):5-11.
[12]王为,王翔.二级轻气炮发射过程中前冲气体的初步研究[J].高压物理学报,2004,18(1):94-96.WANG Wei,WANG Xiang.Research on the precursor gas accompanied with the launch of two-stage gas gun[J].Chinese Journal of High Pressure Physics,2004,18(1):94-96.
[13]王翔,贾路峰,傅秋卫,等.宽脉冲网络信号源及应用[J].高压物理学报,2005,19(3):279-283.WANG Xiang,JIA Lufeng,FU Qiuwei,et al.Broad pulse forming circuit and its application[J].Chinese Journal of High Pressure Physics,2005,19(3):279-283.
[2]DURAND O,SOULARD L.Power law and exponential ejecta size distributions from the dynamic fragmentation of shock-loaded cu and sn metals under melt conditions[J].Journal of Applied Physics,2013,114:194902.
[3]BUTTLER W T,ORO D M,OLSON R T,et al.Second shock ejecta measurement with an explosive driven twoshockwave drive[J].Journal of Applied Physics,2014,116:103519.
[4]HOLTKAMP D B,CLARK D A,FERM E N,et al.A survey of high explosive-induced damage and spall in selected metals using proton radiography[C]∥Shock Compression of Condensed Matter,2003:477-482.
[5]张崇玉,胡海波,李庆忠,等.柱面内爆驱动下铅飞层对碰区动载行为实验研究[J].高压物理学报,2013,27(6):884-886.ZHANG Chongyu,HU Haibo,LI Qingzhong,et,al.Experimental study on dynamic behavior of the collision region of lead tube driven by cylinderical implosion[J].Chinese Journal of High Pressure Physics,2013,27(6):884-886.
[6]黄正平.爆炸与冲击电测技术[M].北京:国防工业出版社,2006:71-106.
[7]金山,陈永涛,汤铁钢,等.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.JIN Shan,CHEN Yongtao,TANG Tiegang,et al.Comparison of multi-channel visar and electric probe technology in measuring free-surface velocity of metal flyer[J].Chinese Journal of High Pressure Physics,2012,26(5):571-576.
[8]孙永强,何智,王珺.一种高精度爆速测量方法[J].含能材料,2012,20(3):329-332.SUN Yongqiang,HE Zhi,WANG Jun.a precision experiment method of measurement detonation velocity[J].Chinese Journal of Energetic Materials,2012,20(3):329-332.
[9]唐敬友,伍绍珍,王藩侯,等.冲击波加热的氦气与氩气对电探针导通的影响[J].高压物理学报,2000,14(4):285-290.TANG Jingyou,WU Shaozhen,WANG Fanhou,et al.The effect of shock heated gaseous helium and argon on pin shorting[J].Chinese Journal of High Pressure Physics,2000,14(4):285-290.
[10]胡杨,胡美娥,张宇红,等.分布参数与绝缘性变化对脉冲形成网络的影响[J].高能量密度物理,2014(2):62-67.
[11]胡杨,胡美娥,陈永涛,等.分布参数与绝缘性对电探针脉冲形成电路影响浅析[J].测控技术,2015,34(8):5-11.HU Yang,HU Meie,CHEN Yongtao,et al.Effect of distribution parameter and insulativity on electric probe pulse-generating circuit[J].Measurement&Control Technology,2015,34(8):5-11.
[12]王为,王翔.二级轻气炮发射过程中前冲气体的初步研究[J].高压物理学报,2004,18(1):94-96.WANG Wei,WANG Xiang.Research on the precursor gas accompanied with the launch of two-stage gas gun[J].Chinese Journal of High Pressure Physics,2004,18(1):94-96.
[13]王翔,贾路峰,傅秋卫,等.宽脉冲网络信号源及应用[J].高压物理学报,2005,19(3):279-283.WANG Xiang,JIA Lufeng,FU Qiuwei,et al.Broad pulse forming circuit and its application[J].Chinese Journal of High Pressure Physics,2005,19(3):279-283.