Paper Information

Journal:   JOURNAL OF RESEARCH IN REHABILITATION SCIENCES   OCTOBER-NOVAMBER 2013 , Volume 9 , Number 4; Page(s) 693 To 704.
 
Paper: 

HARVESTING OF ENERGY FROM HUMAN WALKING WITH A PIEZOELECTRIC TRANSDUCER TO SUPPLY A MEDICAL INSTRUMENT

 
 
Author(s):  FAKHAR MOSTAFA, MAHNAM AMIN*, EDRISI MEHDI
 
* DEPARTMENT OF BIOMEDICAL ENGINEERING, UNIVERSITY OF ISFAHAN, ISFAHAN, IRAN
 
Abstract: 

Introduction: the current state-of-art in designing electronic circuits in very small size and with very low power consumption has led to the development of wearable and implantable medical devices. However, the electronic circuits need power supply that is usually provided by relatively large and heavy batteries. The discharged batteries have to replaced or recharged for the long time operation of the circuits. A new promising approach to overcome these limitations is to harvest the required power from the human body itself.
Materials and Methods: In this study, a harvesting system which implements a high performance piezoelectric transducer in the shoe was developed and evaluated for supplying the power required by a basic electronic circuit as a model of a wearable medical device.
Results: The developed system was able to harvest 0.8mw of steady power with the use of only one piezoelectric transducer. The power was used to supply a basic micro-controller based electronic system steadily without the need for any batteries.
Conclusion: The results demonstrate that low power monitoring or rehabilitation instruments may be supplied without batteries by harvesting the available energy in the walking process.

 
Keyword(s): ENERGY HARVESTING, HUMAN WALKING, PIEZOELECTRIC TRANSDUCER, WEARABLE MEDICAL DEVICES
 
References: 
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