光电式脉搏传感器及由其组成的血压仪的研制

A Design of Optical—electronic Pulse Sensor & Blood Pressure meter

人体脉搏和血压信号中包含着丰富的生理信息,是临床诊断的重要判据。本文介绍了光电式脉搏传感器的检测原理及其组成脉搏、血压检测仪的设计方案,采用集成式光敏元件和放大器芯片替代传统光敏器件进而实现对脉搏测量。而血压的测量采取较为普遍的KorotKoff原理测量法,利用压力传感器检测人体血压信号,并经过差分放大后,送至TC14433构成的数字血压表显示输出。该设计是光、机、电、计算机一体化测控技术的集中体现,是机电一体化产品改善人们生活和健康水平的代表。它的无创伤检测技术也是未来生物医学工程的重要发展方向。

Human blood pressure and pulse signal is rich in biological information ,which is the criterion of the clinical diagnosis. This paper introduces the measurement of human body pulse and blood pressure with the integration of optical-electronic pulse sensor, pressure sensor and digital technology, which is alternative to the traditional photosensitive device for signal measurement .the signal will be processed and output through MCS 805 1.At the same time, making the noise analysis and dealing with the measure noise, and getting a good wave. The measurement of blood pressure adopts Korotkoff principle, and uses the pressure sensor with the same method in front, the signal will be output through TC 14433.