摘要
为了评定弹性材料的结构强度,以便在恶劣的工作环境下准确捕获被测材料弹性形变的数据,设计了基于直角应变花的身管动态应变存储测试系统。针对测试仪器组装复杂的问题,提出了系统微型化的设计思路,将信号调理、数据采集存储、无线传输等模块集成化由FPGA作为主控单元完成控制,并进行了身管动态应变测试实验,对所得数据进行计算和分析。经实验验证,该系统能够在高温高压高冲击环境下获取较好的动态应变数据,微型便携,可远程操控,实用性强。
In order to evaluate the structural strength of the elastic material, a gun barrel dynamic strain storage testing system based on Wi-Fi is designed to accurately capture the elastic deformation data of measured material in harsh work environment. A new design concept of Wi-Fi wireless data transmission is put forward to solve the problem of on-site personnel inconvenient operation. This system considers the FPGA as the main master unit to complete controlling the signal disposal, data collection and storage, wireless transmission and so on. A data derived from the gun barrel dynamic strain testing experiment is calculated and analyzed. The experiments show that the system can get better dynamic strain data in high temperature, high pressure and high impact environment. The advantage of the system are portable conveniently, control remotely and practicability strongly.
