Heart rate/impulse monitoring using autonomous PVDF-integrated dual-gate thin-film transistor
2016
In wearable electronics, autonomous sensor can potentially ease the usage of bulky battery and eventually lead to a sustainable system. In this paper, polyvinylidene fluoride (PVDF) piezoelectric film-integrated dual-gate thin-film transistor (TFT) is utilized to monitor human vital signs such as heart rate or impulse rate. The voltage generated by the PVDF from the impulse itself drives the TFT that rectifies and converts impulse signal to the weak current signal feeding to the low-noise amplifier. The preliminary results of such device in addition to system design of chip-based sensor-integrated RFID tag are addressed to unveil the promising applications in wearable electronics.
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