一种用于生物传感器的微电流检测系统  

A Feeble Current Measuring System For Biological Sensor

作　　者：胡勇[1] 朱震钧[1] 史晓伦[1] 

机构地区：[1]天津大学

出　　处：《仪表技术与传感器》1997年第6期38-39,42,共3页Instrument Technique and Sensor

基　　金：天津市21世纪青年基金

摘　　要：本文介绍了一种用于生物化学信息检测的微电流检测装置，该系统具有低噪声、高增益的特点，并且有很好的基底补偿，适合于生物医学检测与研究领域，同时在微量电化学检测中也有广泛的用途。本文不仅介绍了检测系统的设计原理，还讨论了噪声的产生及抑制，以及屏蔽抗干扰技术的应用。In this paper, a new kind of feeble current measuring system suitable for detection of biomedical signals is described. The system holds such virtues as low noise and high gain, and being good at compensating background current. It can be applied to biomedical measurement and research, as well as electrochemical detections. The design principle of the system, the source of noise and its reduction, and the screen anti interference technique are also presented.

关 键 词：微电流 检测 生物医学 传感器 生物传感器 

分 类 号：Q－331[生物学] TP212[自动化与计算机技术—检测技术与自动化装置]