Journal
SENSORS
Volume 15, Issue 2, Pages 3224-3235Publisher
MDPI AG
DOI: 10.3390/s150203224
Keywords
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Funding
- National Natural Science Foundation [61434001]
- 973 Program [2015CB352100]
- National Key Project of Science and Technology [2011ZX02403-002]
- Special Fund for Agroscientic Research in the Public Interest of China [201303107]
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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.
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