ZHANG Jin-wen1,2, WANG Wen-lian1,2, ZHANG Zhi-jie1,2
（1. Key Laboratory of Instrumentation Science & Dynamic Measurement (North University of China), Ministry of Education, Taiyuan 030051, China；2. Science and Technology on Electronic Test & Measurement Laboratory, North University of China, Taiyuan 030051， China）
Abstract： Because single trigger system is unreliable for shock wave overpressure test, this paper presents a multi-trigger overpressure test system. The large memory capacity is divided into parts to achieve data acquisition and storage with multiple triggers. Compared with conventional single-shot storage test system, this system can prevent false trigger and improve reliability of the test. By using explosion time to extract valid signal segments, it improves the efficiency of data recovery. These characteristics of the system contribute to multi-point test. After the dynamic characteristics of the system are calibrated, the valid data can be obtained in explosion experiments. The results show that the multi-trigger test system has higher reliability than single trigger test system.
Key words： explosion field; overpressure test； multiple triggers; explosion time extraction
CLD number： TP274Document code： A
Article ID： 1674-8042（2015）01-0019-06 doi： 10.3969/j.issn.1674-8042.2015.01.004
References
［1］ LAI Fu-wen, WANG Wen-lian, ZHANG Zhi-jie. Design and application of test system for blast wave. Journal of Projectiles, Rockets, Missiles and Guidance, 2009, 29（3）： 133-138.
［2］ DU Hong-mian, ZU Jing. Research on wireless testing system of shock wave overpressure. Fire Control & Command Control, 2012, 37（1）： 198-200.
［3］ DONG Bing-yu, DU Hong-mian, ZU Jing. The blast wave overpressure measuring system based on wireless-control. Chinese Journal of Sensors and Actuators, 2010, 23（2）： 279-281.
［4］ ZHAO Yan, MA Tie-hua, DU Hong-mian, et al. Design of shock wave overpressure acquisition system based on FPGA and wireless communication. Journal of Engineering Design, 2011, 18（6）： 450-452.
［5］ DU Hong-mian, ZU Jing. The research on dynamic characters of transducers for blast wave measurement. Journal of Projectiles, Rockets, Missiles and Guidance, 2012, 32（2）：215-216.
［6］ LIU Yang, ZHANG Pi-zhuang. High-speed data acquisition test technology research of underwater shock wave overpressure. Nuclear Electronics & Detection Technology, 2013, 33(1): 113-116.
［7］ LANG Jie, ZHANG Zhi-jie, WANG Wen-lian. Design of network node for shock wave test system. Piezoelectrics & Acoustooptics, 2013, 35(6): 921-923.
［8］ LI Ya-juan, YOU Wen-bing, YANG Yan-min, et al. Study on wireless monitoring of shock wave test system. Control and Instruments in Chemical Industry, 2011, 38(11): 1348-1350.
［9］ ZHANG Hai-long, MA Tie-huang, XIE Rui. The shock wave overpressure test system based on double flash memory. Application of Electronic Technique, 2013, 39(11): 86-88.
［10］ DU Hong-mian, ZU Jing. The research on dynamic characters of transducers for blast wave measurement. Journal of Projectiles, Rockets, Missiles and Guidance, 2012, 32（2）： 215-216.
基于可多次触发技术的冲击波超压测试系统设计
张晋文1,2， 王文廉1,2， 张志杰1,2
（1. 中北大学 仪器科学与动态测试教育部重点实验室， 山西 太原 030051； 2. 中北大学 电子测试技术重点实验室， 山西 太原 030051）
摘要:在冲击波测试中， 单触发系统具有不可靠性。 为此， 本文提出了一种基于多次触发技术的冲击波测试系统。 它将存储空间分割成多个存储数据段， 以实现多次触发的数据采集与存储， 提高了测试系统的可靠性。 对测试系统在误触发后存在的多个数据段， 采用爆炸时刻来提取有用数据段， 提高了数据回收效率， 适合于多点分布式测试。 该系统经动态特性标定后， 通过爆炸试验采集了有效数据。 结果表明， 该测试系统较单触发系统有较高的可靠性。
关键词:爆炸场； 超压测试； 多次触发技术； 爆炸时刻提取
引用格式：ZHANG Jin-wen, WANG Wen-lian, ZHANG Zhi-jie. A shock wave overpressure test system based on multiple triggers. Journal of Measurement Science and Instrumentation, 2015, 6（1）： 19-24. ［doi： 10.3969/j.issn.1674-8042.2015.01.004］
[full text view]
