摘要
冲击波超压值和持续时间随测试半径的变化而显著变化,且测试现场的测试节点多、分散性大、难以集中管理。另外,测试时,一旦设定好测试节点的参数,现场就难以更改,即存储测试系统的可控性和灵活性较差。基于以上两点,提出一种用于冲击波超压测试的无线可编程存储测试技术。设计并实现存储测试电路及智能无线测试节点;开发基于LabVIEW平台的上位机软件;通过WLAN无线网络和上位机来灵活设置测试节点的工作参数,并对测试节点的工作状态进行实时监测,从而完成冲击波超压测试。将此无线可编程技术应用到弹药爆炸的静爆试验中,所得30m处超压值分别为60,90,120,150 m处超压值的1/10、1/19.7、1/30和1/50,超压值随测试半径变化显著,通过灵活设置放大倍数,大大提高现场测试的稳定性和灵活性。
In terms of the problems that shock wave's overpressure value and duration change significantly with the change of radius, and there are many test nodes at site and they are in large dispersity and can hardly be managed in a centralized way, and once the parameters of test nodes are set, they can hardly be changed at site during the testing(i.e. the storing testing system has poor controllability and flexibility), a wireless programmable storing testing technology used for shock wave's overpressure testing is put forward. Firstly, the storing testing circuit and intelligent wireless testing nodes are designed. Then, upper computer software based on LabVIEW is developed. At last, working parameters of test nodes are flexibly set through WLAN and upper computer and the working state of test nodes is monitored in real time to finish the shock wave's overpressure testing. When the wireless programmable technology is applied in a static ammunition's detonation test, the overpressure value at 30 m is 1/10 of that at 60 m, 1/19.7 of that at 90 m, 1/30 of that at 120 m, and 1/50 of that at 150 m. It demonstrates that the overpressure value changes observably with the change of radius. Therefore, through the flexible setting of magnifications, the stability and flexibility of field tests can be improved significantly.
出处
《中国测试》
CAS
北大核心
2018年第2期88-92,共5页
China Measurement & Test
