基于Web的网络化频谱分析仪

介绍了网络化虚拟仪器的基本概念，分析了网络化虚拟仪器的结构，提出一套基于．net框架下的Web网络化频谱分析仪的解决方案：采用．net组件技术构造用户界面组件、数据服务组件、信号分析组件、数据库连接组件和数据采集组件，根据需要部署到合适的位置，实现远程测试分析。用户可以在远程登录Web服务器，用户界面组件和信号分析组件自动下载到客户端并嵌入浏览器运行，在浏览器中可以进行信号的时域和频域分析。将数据库技术引入网络化虚拟仪器中，实现对信号的存取管理功能。利用网络化频谱分析仪对偏心电动机的振动信号进行了网络测试分析。

Web-Based Network Virtual Spectrum Analyzer

This paper introduced a basic concept and structure of network virtual instrument. We presented a solving scheme based on the .net framework for web network virtual spectrum analyst in which the component technology was used to construct UI component, data-service component, signal-processing component, DB-component and data-acquiring component, in accordance to the demands of these components above could be put on the right place to realize remote test and analysis. The UI component and signal-processing component could be automatically download from server when remote user login Web Server. These components embedded in user's browser can communicate with data-service component and to transfer dada. User can analyze signal in time domain and frequency domain with this analyst in remote locations. The technology of data-base was successfully applied in network virtual instrument to administer the saving and taking of signals. An network experiment is given to test and analyze the vibration signals of an eccentric motor.