摘要
为了提高脉搏测量的简便性和精确度,设计了以AT89S51单片机为核心,红外二极管和光敏三极管为传感器的光电脉搏测量仪。单片机通过对光敏三极管感应脉冲累加得到脉搏跳动次数,时间由单片机定时器来计算,数据由液晶LCD1602显示。经实验测试,系统性能稳定,误差小于2%。
In order to improve the simplicity and accuracy of pulse measurement, designed AT89S51 microcontroller as the core, infrared diode and phototransistor sensor photoelectric pulse measuring instru- ment. Microcontroller through the cumulative number of pulse the phototransistor induction pulse, the time calculated by the microcontroller timer, data from LCD1602 LCD display. The experimental test sys- tem performance is stability, the error is less than 2%.
出处
《工业仪表与自动化装置》
2013年第4期105-107,共3页
Industrial Instrumentation & Automation
基金
陕西工业职业技术学院院级科研项目(ZK12-18)
