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Sensors 2015, 15(2), 3224-3235; doi:10.3390/s150203224

A Pressure Sensing System for Heart Rate Monitoring with Polymer-Based Pressure Sensors and An Anti-Interference Post Processing Circuit

Institute of Microelectronics and Tsinghua National Laboratory for Information Science and Technology (TNList), Tsinghua University, Beijing 100084, China
These authors contributed equally to this work.
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Author to whom correspondence should be addressed.
Received: 11 December 2014 / Accepted: 20 January 2015 / Published: 2 February 2015
(This article belongs to the Section Physical Sensors)
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Abstract

Heart rate measurement is a basic and important issue for either medical diagnosis or daily health monitoring. In this work great efforts have been focused on realizing a portable, comfortable and low cost solution for long-term domestic heart rate monitoring. A tiny but efficient measurement system composed of a polymer-based flexible pressure sensor and an analog anti-interference readout circuit is proposed; manufactured and tested. The proposed polymer-based pressure sensor has a linear response and high sensitivity of 13.4 kPa−1. With the circuit’s outstanding capability in removing interference caused by body movement and the highly sensitive flexible sensor device, comfortable long-term heart rate monitoring becomes more realistic. Comparative tests prove that the proposed system has equivalent capability (accuracy: <3%) in heart rate measurement to the commercial product. View Full-Text
Keywords: heart rate monitoring; flexible sensors; pressure sensors; anti-interference circuit heart rate monitoring; flexible sensors; pressure sensors; anti-interference circuit
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Shu, Y.; Li, C.; Wang, Z.; Mi, W.; Li, Y.; Ren, T.-L. A Pressure Sensing System for Heart Rate Monitoring with Polymer-Based Pressure Sensors and An Anti-Interference Post Processing Circuit. Sensors 2015, 15, 3224-3235.

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