微机化胃粘膜血流量测定系统

Computerized measuring system for gastric mucosal blood flow

本文介绍了一种氢气清除法胃粘膜血流量测定的微机系统。系统包括氢气敏感电极、专用放大器、Ａ／Ｄ转换器和８０Ｘ８６微机。系统采用电极电位双向补偿、信号的“单点叠加平均”、特征点提取、曲线拟合等关键技术。中文界面、窗口显示、下拉菜单、在线帮助及鼠标驱动等功能使操作更加方便。

A computer system for gastric mucosal blood flow masrement by hydrogen. gas clearance was ineroduced.The system consists of H2-sensitive electrode,special amplifier,A/D converter and 80X86microccmputer·Two-direction electrode potential compensation ,“single point average”eharacter point pick-up and curve fitting techniques were used.The functions of Chinese interface,window display pulldown menu,on-line help and mouse-driving make the system more convenient to operate.