摘要
介绍了一种的由取样电路、放大整形电路、计数显示电路、电源电路四部分组成的新型心率计的设计方法。采用高集成度、高性能、低功耗、高频高速的集成芯片实现计数译码模块。具有时基信号频率稳定,设置合理,计数器清零及时,瞬时心率周期内准确计数等优点。测量范围为0～199次/min,两位半数字显示测量值。
In this article, a method to design a new type of an instantaneous heart rate meter is introduced, which can measure and reflect the speed and the stabilization of heart rate rapidly. The digital heart rate meter consists of 4 parts that sampling, magnification and wave converting, date processing and displaying, power supplying. High performance integrate circuits are applied. The frequency of clock signal is stable and right, The counter works exactly, results ranking from 0 to 199 times per minute and displaying in digital by two and a half bits.
关键词
瞬时心率
数字方法
快速
两位半显示
instantaneous heart rate
digital technique
fast
two and a half bits display
