摘要
将SDQ307型工程射钉器改制成小型、廉价、可靠的冲击速度检测装置,结合光电技术测速,解决了低压力范围同轴自短路型冲击波速度传感器一致性和可靠性等动态参数先期检验难的问题。实测数据表明,用J5.6×16(黄色)大威力射钉弹作为冲击力驱动源时,测得(25.5±0.1)g钢质碰撞器的飞行速度为226.2 m/s;抽样6根同批次同轴冲击波速度传感器结果显示,预测的可靠性不低于66.67%,用标准差表示的一致性不大于1.14%。为准确测量爆轰和冲击压缩实验数据提供了一种有效的方法。
Combining with a measurement of velocity by photoelectric technology, rebuilding a type of nail gun used in civil engineering, a more simple, reliable and miniaturized measurer for shockwave velocity was developed. Thus, the difficult problem to predict the consistency and reliability of selftriggering coaxial detector for shockwave velocity was solved under lower shock pressure. The experimental results indicate that the impact velocity induced by a steel projectile with the statistical weight, （25.5±0. 1） g, is 226.2 m/s; the reliability is larger than 66. 67%, and the coherency, represented by standard error, is less than 1.14%, predicted by test results for 6 detectors, being part of a group of product. It provides an effective technique for measuring detonation and shock compression.
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
2007年第5期473-476,共4页
Explosion and Shock Waves
基金
国家自然科学基金委员会与中国工程物理研究院联合基金项目(10576020)
关键词
爆炸力学
可靠性
电探针
速度传感器
冲击波
一致性
mechanics of explosion
reliability
electric probe
velocity detector
shock wave
coherency
