基于LabVIEW的爆破板应变研究方法

Research method of bursting panels strain based on LabVIEW

为研究爆破板在粉尘爆炸时的应变,实现全智能化控制和采集,设计了一种基于LabVIEW的爆破板应变研究方法。该方法利用惠斯通电桥将布置在爆破板上应变片的应力变化转换为电信号,同时通过LabVIEW软件、数据采集卡等使红外相机、高速相机和压力传感器的工作同步,实现了爆炸过程中罐内爆炸压力、爆破板应变数值与该时刻爆破板图像的对比分析。实验结果表明:该方法满足同步性、多样性、准确性等实验要求,具有模块化程度高、实时性强、可扩展性好的特点,有助于改进爆破板的结构。

In order to study the strain of the bursting panels during dust explosion,realize full intelligent control and acquisition,a strain research method of the bursting panels based on LabVIEW is designed.The method uses Wheatstone bridge to convert the stress change of the strain gauge arranged on the bursting panels into electrical signal.At the same time,the work of the infrared camera,high-speed camera and pressure sensor is synchronized through the LabVIEW software,data acquisition card,etc.,so as to realize the comparative analysis of the explosion pressure in the tank,the strain value of the blasting panels and the image of the blasting panels at that time during the explosion.The experimental results show that the method meets the experimental requirements of synchronization,diversity,accuracy,etc.It has the characteristics of high degree of modularization,strong real-time performance,and good scalability,which is helpful to improve the structure of the bursting panels.