摘要
心率计是用来测量人体心脏跳动的次数的仪器,通过测量人体的心率反应身体的健康程度,因此测量的精确和性价比是衡量的一项重要指标。设计从简单和经济实用角度出发,采用普通的TCRT5000反射型光电传感器采集信号,经过放大电路、滤波电路、比较电路将输入信号变换为单片机所能够识别的脉冲信号,经单片机STC89C52进行定时、计数处理后通过显示电路显示输出,最终实现瞬时心率和平均心率的精确测量。
Heart rate meter is used to measure the human heart beating frequency instrument, through the measurement of the human heart rate response to physical health, so the measurement precision and price are its important indicator. This design from simple and economical and practical point of view, using the ordinary TCRT5000 reflective photoelectric sensor signal acquisition, passes through the amplifying circuit, filter circuit, comparison circuit the input signal is transformed into single chip, with which microcomputer can identify the pulse signal. Through SCM STC89C52 for timing, counting treatment, the display circuit shows the output. Finally it realizes the instantaneous heart rate and the precise measurement of the average heart rate.
出处
《自动化技术与应用》
2013年第5期67-69,76,共4页
Techniques of Automation and Applications
关键词
心率计
瞬时心率
平均心率
单片机
heart- rate meter
instantaneous heart rate
average heart rate
MCU
