首页|A non-invasive heart rate and blood pressure monitoring system using piezoelectric and photoplethysmographic sensors
A non-invasive heart rate and blood pressure monitoring system using piezoelectric and photoplethysmographic sensors
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NSTL
Elsevier
? 2022 Elsevier LtdIn this work, a non-invasive heart rate (HR) and blood pressure (BP) monitoring system using a lead zirconate titanate (PZT) piezoelectric and photoplethysmographic (PPG) sensor has, preliminarily, been investigated. A modified pulse transit time (MPTT) is applied to demodulate HR, systolic blood pressure (SBP), and diastolic blood pressure (DBP) from obtained BP waveforms. In addition, an engineering application software written by LabView programming is, also, developed for dynamic signal monitoring and processing of desired parameters. Consequently, HR and BP measurements on 15 volunteers are performed and validated against a reference digital sphygmomanometer. The results show equivalent HR from both sensors with a mean absolute difference (MAD) of 1.78 beats per minute. Meanwhile, MADs of SBP and DBP measurements are 2.62 and 1.36 mmHg, complying with AAMI-BHS accuracy of “Grade A”, respectively. Therefore, PZT and PPG-based monitoring system could lead to development of accurate, non-invasive, and low-cost HR and BP devices.
Blood pressure monitoringModified pulse transit timeNon-invasive health monitoringPhotoplethysmographic sensorPiezoelectric sensor
Pullteap S.、Bernal O.、Samartkit P.
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Department of Mechanical Engineering Faculty of Engineering and Industrial Technology Silpakorn University
NSTL
Elsevier
