Vibration Energy Harvester Driven Wearable Biomedical Diagnostic System | IEEE Conference Publication | IEEE Xplore

Vibration Energy Harvester Driven Wearable Biomedical Diagnostic System


Abstract:

Smart fabric technology (SFT) makes easier to monitor physiological parameters. Smart Fabric technology or An electronic textile (e-textile) is prepared by incorporating ...Show More

Abstract:

Smart fabric technology (SFT) makes easier to monitor physiological parameters. Smart Fabric technology or An electronic textile (e-textile) is prepared by incorporating wearable systems along with sensors deployed for body parameters which are used by doctors as markers to summarize health status. Such existing systems are battery driven and required cumbersome maintenance. It is the main cause for limited life span and lack of biocompatibility. These limitations are well addressed by proposing energy harvesting device (EHD) as an alternative to battery. It is basically an energy transduction mechanism in which vibration energy converted to useful electrical energy. This work focuses on low cost fabrication of EHD to make SFT self powered. The fabricated device is built out of polymer substrate, silver electrodes and zinc oxide as piezoelectric material. The devices have been characterized and found electric potential of 2.51Vpeak, 0.76Vrms whereas power was 12.61μWpeak, and 1.18μWrms for 500KΩ load at 53Hz peak resonant frequency. The power demand of commercially available cardiac sensor, adaptive pace maker, pulse oxymeter, sensor node demand power in the range of lμW to 100μW. This reveals feasibility of energy harvester as an power source for SFT. Array of series and parallelly connected EHD can be deployed for fulfilling demand of integrated SFT.
Date of Conference: 22-26 April 2018
Date Added to IEEE Xplore: 06 December 2018
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Conference Location: Singapore

References

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