作者：李帅波1, 洪晓华1, 马玉震2
作者单位：1. 中国矿业大学机电工程学院, 江苏徐州 221116;
2. 河北工业大学机械工程学院, 天津 300130
关键词：LabJack U12数据采集控制器; 虚拟仪器; LabVIEW软件; 信号采集; 数据处理
摘要：
为了克服传统机械设备振动信号采集与处理设备造价昂贵、通用性差、可扩展能力弱以及对操作人员知识水平要求较高的缺点,设计了基于LabJack U12数据采集卡以及LabVIEW虚拟仪器软件平台的振动信号采集与数据处理系统。该系统以数据采集卡和电荷放大器为硬件平台,完成振动信号采集工作。软件系统中集成的众多子VI可对信号进行时频域多角度、多层次的分析处理,满足工业现场和实验室常用信号处理的要求,同时系统还具有信号的实时显示、多格式保存以及复现等功能。该系统结构简单、使用方便、可扩展性及可移植性强的特点使得其完全可以满足工业测试和教学科研的要求,具有广阔的应用前景。
Signal acquisition and processing system based on LabJack
LI Shuai-bo1, HONG Xiao-hua1, MA Yu-zhen2
1. College of Mechanical & Electrical Engineering, China University of Mining & Technology, Xuzhou 221116, China;
2. School of Mechanical Engineering, Hebei University of Technology, Tianjin 300130 China
Abstract: The disadvantages of the tranditional vibration signal acquisition and processing equipments are high cost,poor compatibility,poor expansibility and higher requirements for operators. In order to overcome those, a new vibration signal data acquisition and processing system which based on the data acquisition card LabJack U12 and virtual instrument software platform LabVIEW was designed. The systems uses the data acquisition card and charge amplifier as the hardware platform to complete the acquisition of vibration signals. Many sub-VIs which can analyze signal form time domain to frequency domain in different point and different deepth are intergrated in this software, so it can meet the common use in the industry site and laboratory. And this system also has the features such as real-time display, multi-format save,rehabilitation and so on. The characteristics of simple structure,easy to use,scalability and transplanted ability makes it fully meets the requirements of industrial testing,teaching and research.It has broad prospects for application.
Keywords: LabJack U12; Virtual instrument; LabVIEW; Signal acquisition; Data processing
2009, 35(2): 61-63 收稿日期: 2008-8-19;收到修改稿日期: 2008-10-27
基金项目: 江苏省研究生创新计划项目(2006047)
作者简介: 李帅波(1981-),男,河北邯郸市人,硕士研究生,专业方向为矿井发电及虚拟仪器应用。
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