Earticle

초록

영어

Heart rate measurement helps in assessing the condition of the cardiovascular system. Today, there are many other methods to measure heart rates such as Phonocardiogram, ECG, blood pressure wave form, and pulse meters but these methods are clinical and expensive. Because of these, a need exists for cheap sensing devices that can measure pulse in an accurate but much easier way. In this study, a low-cost photoplethysmographic circuit was fabricated with the use ofLM358 Operational Amplifier, photodiode, infrared LED, resistors, and potentiometers. The heartbeats per minute of five volunteers were recorded. Three trials were done per volunteer. Data showed that the average heartbeats per minute for the five volunteers with standard deviations are 67.33 ± 1.53, 63.00 ± 2.00, 65.67 ± 2.52, 70.33 ± 1.53, and 65.33 ± 1.53 respectively. The fabricated circuit successfully measured the heart rates of five people. The experiment established the potential of low-cost do-it-yourself photoplethysmographic circuits as alternatives to the expensive medical heart rate devices currently being used in hospitals and clinics.

목차

ABSTRACT
 INTRODUCTION
  Background of the Study
  Objectives of the Study
  Significance of the Study
  Scope and Limitations
 MATERIALS AND METHODS
  Construction of Photoplethysmographic Circuit
  Testing of Fabricated Sensing Device
 RESULTS AND DISCUSSION
 CONCLUSION AND RECOMMENDATIONS
 ACKNOWLEDGEMENTS
 REFERENCES

키워드

저자

• Reisha Claffel Z. Ferraren [ Philippine Science High School - Central Visayas Campus, Talaytay, Argao, Cebu, Philippines ]
• Lindly Van S. Medrano [ Philippine Science High School - Central Visayas Campus, Talaytay, Argao, Cebu, Philippines ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  APEC Youth Scientist Journal [APEC 청소년 과학학술지]

• 간기

  반년간

• pISSN

  2005-5625

• 수록기간

  2009~2022

• 십진분류

  KDC 405 DDC 505