多通道生物压电传感芯片微分析系统设计  

Design of micro analysis system composed of multichannel piezoelectric biosensor chips

作　　者：赵仁吉[1] 惠春[1] 徐爱兰[1] 

机构地区：[1]上海交通大学微纳科学技术研究院微米/纳米加工技术国家重点实验室薄膜与微细技术教育部重点实验室,上海200030

出　　处：《传感器与微系统》2007年第7期93-95,104,共4页Transducer and Microsystem Technologies

基　　金：上海市纳米技术专项经费资助项目(0452nm024)

摘　　要：为了满足石英传感阵列信号采集的要求,设计了一种基于虚拟仪器技术的多通道生物压电传感芯片微分析系统。该系统硬件部分由信号处理电路、数据采集卡和计算机等组成;软件部分采用图形化编程语言LabVIEW设计。利用该系统分析溶液电导率与石英传感芯片谐振频率偏移的关系。实验结果表明:该系统能够实现对频率信号的实时测量,并能实现数据的自动采集、处理、保存;可进一步用于生物大分子的检测。In order to meet the requirement of the signal acquisition of the quartz sensor arrays, the micro analysis system based on virtual instrument is designed. The hardware of the system is made up of oscillation circuit, data acquisition card and computer, while The soft module is designed by LabVIEW. The relation between the conductivity of the solution and the frequency response of the quartz sensor is analyzed. Experiments indicate that this system can detect the real-time frequency,and the results can be collected,processed,stored simultaneously; So it＇ s suitable for the further detection of biomacromolecules.

关 键 词：压电石英晶体 传感芯片 虚拟仪器 谐振频率 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]