LabVIEW的振动信测试系统设计方案.docVIP

PAGE / NUMPAGES 基于LabVIEW的振动信号测试系统设计 摘要：虚拟仪器是现代计算机技术同仪器技术深层次结合的全新概念仪器，实质是利用计算机的显示器的显示功能模拟传统仪器的控制面板，以多种形式表达输出测量结果，利用计算机强大的软件功能实现信号数据的运算、分析和处理，完成各种测试功能的一种计算机仪器系统。 本次设计利用了基于LabVIEW的虚拟仪器技术设计了一套振动测试系统，下位机采用AT89C52单片机进行数据采样，并通过RS-232串口与上位机通信实现信号数据的传输，上位机软件开发基于LabVIEW平台。其具有信号采集，波形显示，数据处理，数据保存，信号参数检测等功能，具有操作简单，界面直观，适用性强等特点。通过设计，能够对数据进行时域显示和频域分析处理。 关键词：虚拟仪器；振动测试；LabVIEW；单片机 Vibration Testing System Based on LabVIEW Signal Design Abstract: Virtual instrumentation is modern computer technology combined with the deep-seated instrument technology new concept instrument , in essence, the use of the computer monitor s display traditional analog instrument control panel to output measurement results of various forms of expression , the use of powerful computer software functions the operation data for signal analysis and processing is completed for all test functions of a computer system apparatus . The design takes advantage of LabVIEW -based virtual instrument technology designed a vibration test systems, next-bit machine using AT89C52 microcontroller for data sampling , and to achieve data transmission signal via RS-232 serial communication with the PC , PC software development based on LabVIEW platform. Which has a signal acquisition, waveform display , data processing, data storage , signal parameter detection and other functions, with a simple, intuitive interface, applicability, and other characteristics. By design, the data can be displayed in time domain and frequency domain analysis. Keywords: Virtual Instrument, vibration test, LabVIEW, SCM 目 录 TOC \o 1-3 \h \u HYPERLINK \l _Toc24471 第1章 绪论 PAGEREF _Toc24471 1 HYPERLINK \l _Toc3562 1.1 课题研究的背景和意义 PAGEREF _Toc3562 1 HYPERLINK \l _Toc30714 1.3 论文主要设计内容 PAGEREF _Toc30714 1 HYPERLINK \l _Toc8674 第2章 虚拟仪器和LabVIEW PAGEREF _Toc8674 3 HYPERLINK \l _Toc22099 2.1 虚拟仪器 PAGEREF _Toc22099 3 HYPERLINK \l _Toc9014 2.1.1 虚拟仪器的概念 PAGEREF _Toc9014 3 HYPERLINK \l _Toc15321 2.1.2 虚拟仪器的组成 PAGEREF _Toc15321 3 HYPERLINK