摘要
介绍了由ＭＰＸ５０ＧＰ压强传感器、ＭＣ６８ＨＣ０５ＳＲ３单片机等组成的脉象血压仪测量原理及总体方案的设计，论述了一些关键问题（如ＢＰ信号与ＣＰ信号的分离、各种噪声的抑制、信号检测上的数字处理等）及解决方法。该仪器已研制成功，其测量准确性、清晰度及稳定性均达到相当高的水平。
The measurement principle and design plan of the sphygmograph and sphygmomanometer based on MPX50GP pressure sensor and MC68HC05SR3 are discussed with some key problems and solutions such as the separation of BP & CP signals, immunity of noises, digital processing of measured signals. This instrument has been developed featuring with high measurement accuracy, clarity and stability.
关键词
脉象血压仪系统
单片机
MC68HC05SR3
压强传感器
blood pressure measurement systolic pressure diastolic pressure sphygmus graph digital smoothness filter LMS self adaptive algorithm
