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Related Experiment Videos

An EPROM-based heart-rate meter with wide range and multifunctions.

K Zhang1, E Zheng, C Peng

  • 1Bioengineering Centre, Chongqing University, PR China.

Journal of Biomedical Engineering
|March 1, 1992
PubMed
Summary

This study presents a digital heart-rate meter for displaying instantaneous and average heart rates. The device offers high resolution, utilizing EPROM chips and a binary counter for accurate beat-to-beat interval measurements.

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Area of Science:

  • Biomedical Engineering
  • Digital Signal Processing

Background:

  • Accurate heart rate monitoring is crucial for various medical and fitness applications.
  • Existing heart rate monitors may lack precision or a wide dynamic range.

Purpose of the Study:

  • To develop a digital heart-rate meter with high display resolution and accuracy.
  • To design a cost-effective circuit using general-purpose integrated circuits.

Main Methods:

  • Utilized EPROM 2716 chips preprogrammed with heart-rate data.
  • Employed a 12-bit binary counter to measure beat-to-beat intervals.
  • Implemented two clock frequencies (256 Hz and 2048 Hz) for extended display range.

Main Results:

  • Achieved a display resolution of 1 beat per minute (BPM) from 13-362 BPM.

Related Experiment Videos

  • Extended the display range up to 999 BPM with 8 BPM resolution.
  • Demonstrated automatic switching of clock frequencies for optimal performance across heart rate ranges.

    • Conclusions:

    • The developed digital heart-rate meter provides accurate and high-resolution measurements.
    • The design is efficient, using readily available integrated circuits.
    • The device is suitable for applications requiring precise heart rate monitoring.