基于LabVIEW 7的虚拟示波分析系统及其应用  

Virtual oscillographic analysis system and application based on LabVIEW 7

作　　者：周元臻[1] 郑建斌[1] 

机构地区：[1]西北大学分析科学研究所/陕西省电分析化学重点实验室,陕西西安710069

出　　处：《计算机与应用化学》2007年第8期1063-1066,共4页Computers and Applied Chemistry

基　　金：国家自然科学基金(20275030);陕西省自然科学基金(20041320)

摘　　要：采用虚拟仪器技术,以LabVIEW 7.0软件为开发平台,采用国产高速数据采集卡和本实验室自制的示波计时电位装置,开发出虚拟示波分析系统。该系统可实现多路信号同步采集、分析,并具备可控信号显示及回放等特点。将该系统用于高低频示波计时电位实验的结果表明:由于该系统具有可控信号显示及回放特点,使得高低频示波计时电位法中,去极剂溶出的最深的切口深度易于观察和测量,从而使高低频示波计时电位法成为一种实际有用的分析方法。Based on virtual instrument technique, a virtual oscillographic analysis system （VOAS） was constructed. The LabVIEW7.0 software, high speed data acquisition card and home-made oscillographic chronopotentiometric equipment were used in the system. The system have the functions such as simultaneously acquiring and analyzing multicenter signals, optional signals saving and controllable signal real-time display and redisplay. These functions were tested by the experiment of oscillographic chronopotentiometry with high and low frequency current （OCPHLFC）. Experimental results showed that the deepest incision yielded in the stripping process of the depolarizer was easily observed and measured because of the functions recount above. The VOAS can get OCPHLFC an easily popularizing method of oscillographic analysis in practical sample analysis.

关 键 词：示波分析 示波计时电位法 数据采集 数字化测试系统 虚拟仪器 

分 类 号：O646[理学—物理化学]