摘要
电子血压计克服了水银血压计操作专业性强、不易携带等缺点,呈现出家用化的趋势。针对传统单片机设计方案电路设计复杂、测量精度不高、稳定性不好等缺点,给出了一种采用LM3S1138芯片作为主控制器、自带信号运放和信号调理功能的压力传感器MPXV5050GP作为信号采集器,基于示波法测量血压的血压计设计方案。实验表明,该血压计测量速度快,稳定性高,测试结果基本与水银血压计一致,具有较高实用价值。
The electronic sphygmomanometer overcame the shortcomings of mercury sphygmomanometer such as specialized operation,not easy to carry and so on,presenting a home use tendency.In view of the disadvantages of traditional MCU designs that the circuit is complex,the accuracy and stability performance is poor,this paper put forward a design method based on oscillometer method,using LM3S1138 as the main controller,pressure-sensor MPXV5050GP with signal processing ability as signal collecting equipment.Experimental results indicate that the the measuring speed of the sphygmomanometer is fast,the device is stable,and that the result is similar to that of the Riva-Rocci sphygmomanometer,showing value in practical use.
出处
《单片机与嵌入式系统应用》
2010年第4期62-65,共4页
Microcontrollers & Embedded Systems
关键词
示波法
血压计
收缩压
舒张压
LM3S1138
oscillometer method
sphygmomanometer
systolic blood-pressure
diastolic blood-pressure
LM3S1138
