LABVIEW下冲击试验测试信号分析模块的设计

根据GJB冲击环境试验测试要求,介绍LABVIEW平台下两类典型冲击信号分析模块的设计方法,主要讲述利用多图层叠加编程技术实现GJB150.18-1986标准规定的半正弦波与后峰锯齿波动态套容差曲线分析模块的设计以及利用递归算法实现冲击响应谱分析模块的设计。其次,采用资源DLL封装技术对LABVIEW编程实现的冲击信号分析模块进行封装,在其他编程语言中调用DLL实现冲击信号分析模块在其他编程语言中的功能链接。实践表明,LABVIEW图形化编程技术可快速实现两类冲击信号分析模块的设计,将高速数据采集模块与冲击信号分析模块集成,可有效完成冲击试验测试与信号分析处理任务。

Design of Signal Analysis Module of Shock Test in LABVIEW

According to GJB shock environment test requirement, two kinds of typical shock signal analysis modules design method in labview is introduced. It mainly includes half-sinusoidal shock pulse and final peak saw-tooth shock pulse tolerance curve defined by GJB150.18-1986 dynamic matching analysis module and shock response spectrum analysis module computing with recursive algorithm. Secondly, using resource dll packaging technique to packaging shock signal analysis module programmed in labview, any other programming languages can recall shock signal analysis module by dll. Practice shows that labview graphical programming technique can design these two shock signal analysis modules quickly, combined with high-speed data acquisition system, shock environment test and its data processing task can be completed effectively.