NDLI: Power requirements of sensing nodes and adequacy of piezoelectric energy harvesting

Content Provider	IEEE Xplore Digital Library
Author	Sriramdas, R. Rastogi, S. Pratap, R.
Copyright Year	2014
Description	Author affiliation: Centre for Nano Sci. & Eng. & Mech. Eng., Indian Inst. of Sci., Bengaluru, India (Sriramdas, R.; Rastogi, S.; Pratap, R.)
Abstract	Sensing nodes are employed for intelligent ambient monitoring and information dissemination. The primary challenge in making a sensing node autonomous is the ability to power it continuously. The conventional method of powering these nodes through batteries has an associated drawback of periodic maintenance and replacement. Alternate methods of powering sensing nodes are gaining impetus with the advent of low power electronics. The use of piezoelectric harvesters is an alternative approach to power these sensing nodes. These harvesters innately convert the energy from the unused ambient vibration into electrical energy. The energy extractable from vibrations is characterized by the structure of the vibrating surface. We analyze a harvester as a dynamic vibration absorber mounted on a vibrating structure. The influence of mass ratio, damping ratio, and the number of harvesters on the energy transmitted to the harvesters is addressed. We also assess the power levels required by typical sensing nodes. Our analysis addresses the selection of a particular piezoelectric material, categorically, for a given sensing node. We find that the power required by typical sensing nodes can be easily fulfilled by arrays of harvesters. The current work addresses the concept of available energy from vibrations and the selection of appropriate harvesting configuration for a sensing node.
Starting Page	1
Ending Page	5
File Size	208019
Page Count	5
File Format	PDF
ISBN	9781467365277
e-ISBN	9781467365284
DOI	10.1109/ICEmElec.2014.7151219
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-12-03
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Vibrations Damping Wireless communication Couplings Vibration absorber Wireless sensor networks Power demand Piezoelectric energy harvesters Sensing nodes Sensors
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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