作者：张翔¹, 崔春生¹, 刘双峰¹, 刘嘉颖¹, 崔光强²

作者单位：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. 中国水利水电第十四工程局有限公司, 云南 昆明 650041

关键词：压力测试;寄生效应;爆炸容器;隔离干扰;滤波

摘要：

在爆炸容器内的爆燃压力测试实验中，传统抗干扰结构的传压孔设计会导致测试结果数值偏低。若去除传压孔，将传感器置于容器内，会面临传感器被破片击中和爆燃过程中产生的寄生效应等一系列问题。为此该文提出一种寄生效应抑制结构，在隔离寄生信号的基础上，保护传感器并提升测试结果的准确性。经过数次现场实验，通过对比安装该结构与未安装该结构得到的压力曲线，观察寄生效应抑制结构对寄生输出的抑制效果。将正式测试所得的数据进行滤波处理得出测试结果，与理论值作比较，验证测试结果的准确性。经实验证明：该测试方法可有效抑制外界干扰，得到较为清晰且直观的压力曲线；测试结果接近于理论值，测试结果数值偏低的问题得以解决。

Research on deflagration pressure testing technology of bullet in explosive vessel
ZHANG Xiang¹, CUI Chunsheng¹, LIU Shuangfeng¹, LIU Jiaying¹, CUI Guangqiang²
1. Key Laboratory of Instrumentation Science & Dynamic Measurement (North University of China), Ministry of Education, Taiyuan 030051, China;
2. Sinohydro Bureau 14 Co., Ltd., Kunming 650041, China
Abstract: The design of the pressure transmission hole in the traditional anti-interference structure will result in the low value of the test result in the deflagration pressure test experiment in explosion container. If we get rid of the pressure-transfer hole and placing the sensor in the container, there would be a series of problems such as the sensor being hit by fragments and parasitic effects during deflagration, etc. So a parasitic suppression structure was designed for solving such problems above. The structure could protect the sensor and improve the accuracy of test results while isolating parasitic signals. After several field experiments, we could observe the inhibitory effect of the parasitic suppression structure on the parasitic output by comparing pressure curves between that obtained by installing the structure and not installing the structure. Then verify the accuracy of the test results by comparing the result value and theoretical value after filtering the data from the formal test. This experiment has demonstrated that this kind of test method could effectively suppress external interference and obtain a clear and intuitive pressure curve. And the result value is close to the theoretical value, the problem of low result value has been solved.
Keywords: pressure test;parasitic effect;explosion container;interference isolation;filter
2020, 46(1):39-43  收稿日期: 2019-05-07;收到修改稿日期: 2019-06-22
基金项目:
作者简介: 张翔(1994-),男,山西太原市人,硕士研究生,专业方向为动态存储测试技术
参考文献
[1] 宫婕, 汪泉, 李志敏, 等. 柱形爆炸容器内爆炸冲击波的传播规律研究[J]. 爆破, 2017, 34(4):17-21, 51
[2] 钱秋冬. 爆炸容器动态响应研究进展综述[C]//第27届全国结构工程学术会议论文集(第Ⅱ册). 北京:《工程力学》杂志社, 2018.
[3] 张远平. 爆炸冲击波压力传感器灵敏度的动态标定及测试技术研究[C]//第四届全国爆炸力学实验技术学术会议论文集. 安徽省力学学会, 2006.
[4] LAPPA M, DRIKAKIS D, KOKKINAKIS I. On the propagation and multiple reflections of a blast wave travelling through a dusty gas in a closed box[J]. Physics of Fluids, 2017, 29(3):19
[5] 王幸, 黄家蓉, 孙桂娟. 压力测量中一种隔振措施的试验研究[J]. 弹箭与制导学报, 2013, 33(6):67-69
[6] 顾泽凌, 孟令军, 任楷飞, 等. 爆炸桶中冲击波超压测试方法研究[J]. 中国测试, 2018, 44(2):31-35
[7] 段卓平, 恽寿榕. 密闭爆炸容器实验研究及数值模拟[J]. 中国安全科学学报, 1994(3):1-7
[8] 刘文祥, 张德志, 钟方平, 等. 球形密闭容器内炸药爆炸形成的准静态气体压力[J]. 爆炸与冲击, 2018, 38(5):1-5
[9] 李琛. 冲击波压力传感器寄生效应抑制方法研究[D]. 南京:南京理工大学, 2017.
[10] 孔霖, 苏健军, 李芝绒, 等. 某压力传感器热冲击响应的抑制方法[J]. 传感器与微系统, 2010, 29(12):69-72
[11] 石翎熹. 基于Matlab的示波器信号处理系统研究与实现[D]. 成都:电子科技大学, 2017.
[12] 周建美. 爆炸容器内炸药装药爆炸温度场的数值研究[D]. 南京:南京理工大学, 2013.