The National Instruments PCI-4472 and PXI-4472 are 8-channel dynamic signal acquisition devices for making high-accuracy audio-frequency measurements. The PCI-4474 is a similar 4-channel board. The vibration-optimized NI PXI-4472B offers a

基于labview平台，以弹簧-质量-阻尼系统为基础，做出二阶虚拟仪器实验平台。包括二阶系统的时域，频域响应动态分析。实现单位阶跃信号输入弹簧-质量-阻尼系统后的动画演示。 -Labview based platform to spring- mass- damper system based on virtual instrument to make second order experimental platform. Time domain including second-frequ

In Simulink, it is very straightforward to represent and then simulate a mathematical model representing a physical system. Models are represented graphically in Simulink as block diagrams. A wide array of blocks are available to the user in provided