摘要
新世纪小康生活水平迈向新的台阶以来,人们对身体健康的重视度越来越高。作为反映人体生理机能是否良好的重要指标之一血压来说,良好的身体状况需要拥有正常的血压。因此,研制既适合家庭保健人员又适合专业人士的电子血压计具有重要的意义。首先从分析血压测量方法入手定出了系统工作原理。然后在硬件上着重探讨了血压波信号的提取,对从压力传感器出来的信号先进行仪表放大,再进行滤波调理,最后送入单片机采样处理。
As the improvement of people＇s living standard, people are far more concern about their health situation. Blood pressure is the most important target which reflects the physiological status of human being. Normal blood pressure is the important factor that insures a healthy body. So it is significant to design intelligent sphygmomanometer which applied to both family member and doctor, expenses. At First, principle of the system is schemed after analyzing the method of measuring blood pressure. Then the hardware circuit design focuses on the extraction of blood pressure wave signal. Firstly, the signal from the pressure sensor is amplified by instrument amplification, and then, the amplified signal is filtered and conditioned by the OP amp, and finally into the AD.
出处
《价值工程》
2012年第27期185-187,共3页
Value Engineering
关键词
单片机
示波法
血压计
MCU
oscillography
sphygmomanometer
