Wearable Sensing of In-Ear Pressure for Heart Rate Monitoring with a Piezoelectric Sensor

• Published in: Sensors (Basel, Switzerland) Vol. 15; no. 9; pp. 23402 - 23417
• Main Authors: Park, Jang-Ho, Jang, Dae-Geun, Park, Jung, Youm, Se-Kyoung
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 16.09.2015; MDPI
• Subjects: Algorithms; Biosensing Techniques - instrumentation; Blood; Blood Pressure; Devices; Diabetes; Ear Canal - blood supply; Ear Canal - physiopathology; Electrocardiography; Electrocardiography, Ambulatory - instrumentation; Equipment Design; Heart attacks; Heart Rate; High-Energy Shock Waves; Humans; Hypertension; in-ear pressure variance; Intervals; Medical equipment; Mobile Applications; Modules; Monitoring; Monitoring, Ambulatory - instrumentation; Monitoring, Ambulatory - methods; Physiology; piezoelectric sensor; Sensors; Variance; Vital signs; wearable heart rate monitoring; wearable heart rate monitoring; piezoelectric sensor; in-ear pressure variance

In this study, we developed a novel heart rate (HR) monitoring approach in which we measure the pressure variance of the surface of the ear canal. A scissor-shaped apparatus equipped with a piezoelectric film sensor and a hardware circuit module was designed for high wearability and to obtain stable...