mobile | classic
Dataweek Electronics & Communications Technology Magazine





Follow us on:
Follow us on Facebook Share via Twitter Share via LinkedIn


Search...

Electronics Buyers' Guide

Electronics Manufacturing & Production Handbook 2017


 

Self-powered water motion sensor
14 June 2017, Electronics Technology

A team of researchers from Korea’s Ulsan National Institute of Science and Technology, and Korea University, has engineered a self-sustaining water motion sensor to analyse the dynamics of water motion, such as frequency and amplitude, using only the energy harvested from the water motion itself. Their research findings were reported in the journal Nano Science.

The oscillatory pressurisation of a water droplet between two electrodes generates electrical energy from the electrification of water by the static charge on the surfaces of the dielectric layers. Simultaneously, the variation of oscillating electrical energy generated provides information on the frequency and amplitude of the water motion. The accumulated energy and the analysed information are used to control an array of LEDs based on a 6-bit binary code.

A self-sustaining sensor platform is a core component for Internet-of-Things (IoTs) and smart-grid systems. The existing sensor platforms require energy to operate and display the detected information. Therefore monitoring, processing and displaying the minute changes of a targeted environmental element in a real-time fashion, without the use of external power sources or energy storages like batteries, has been challenging.

The research team solved this problem with the use of energy harvesting, an essential technology for permanent sensor platforms. The proposed sensor platform consists of a water-contact-based triboelectric nanogenerator, a self-sustaining water motion sensor integrated circuit on a test printed circuit board (PCB), and an LED array for displaying the detected frequencies and amplitudes of water motion. The circuits that store the harvested electrical energy and simultaneously analyse the signals are made using a CMOS (complementary metal-oxide semiconductor) process.

Because the integrated one-platform concept requires no external power source and significantly reduces energy storage requirements, it can be applied to wireless or no-power sensor platform and grid-scale renewable energy plants, the research team notes.


  Follow us on Facebook Share via Twitter Share via LinkedIn    

Further reading:

  • Audio interface carries data and power using a standard jack
    17 May 2017, Electronics Technology
    ams has come up with a technology that can carry data and power via a four-pole 3,5 mm audio jack, primarily devised as a way for noise-cancelling headsets to operate without a dedicated battery power ...
  • Low-cost IoT breakthrough
    19 April 2017, News, Electronics Technology
    “A wireless technology breakthrough from product design and development firm, Cambridge Consultants, is bringing the vision of ‘smart dust’ a step closer to reality,” claims a recent statement by said ...
  • Wits researchers make breakthrough in quantum electronics
    31 January 2017, This Week's Editor's Pick, News, Electronics Technology
    The group, headed by Professor Somnath Bhattacharyya, has been working for the past 10 years on developing carbon-based nanoelectronic devices.
  • Contactless fingerprint sensing technology developed at CSIR
    9 November 2016, This Week's Editor's Pick, News, Electronics Technology
    The Council for Scientific and Industrial Research (CSIR) has developed a new-generation fingerprinting sensing technology using high-speed, large-volume optical coherence tomography (OCT). The device ...
  • Communication technique developed for implanted medical devices
    5 October 2016, News, Electronics Technology
    Researchers at the University of Washington have devised a method of wireless communication that allows devices such as brain implants, contact lenses, credit cards and smaller wearable electronics to ...
  • Li-metal battery promises double capacity of Li-ion
    5 October 2016, This Week's Editor's Pick, Electronics Technology
    SolidEnergy Systems, a company founded in 2012 by MIT alumnus Qichao Hu, is preparing to commercialise a novel rechargeable lithium metal battery that is said to offer double the energy capacity of the ...
  • Audi researching shock absorbers that harvest energy
    5 October 2016, Electronics Technology
    New technology from Audi aims to ease the pain of driving on rough roads, in more ways than one. The company is working on a prototype called eROT, in which electromechanical rotary dampers replace the ...
  • Breakthrough towards carbon nanotubes succeeding silicon
    10 August 2016, This Week's Editor's Pick, News, Electronics Technology
    Researchers at the Technion-Israel Institute of Technology have developed a method for growing carbon nanotubes that could lead to the day when molecular electronics replace the ubiquitous silicon chip ...
  • New phosphor promises better, cheaper lighting
    10 August 2016, Opto-Electronics, Electronics Technology
    Researchers from KU Leuven, the University of Strasbourg, and CNRS have discovered a new phosphor that could make next-generation fluorescent and LED lighting even cheaper and more efficient. The team ...
  • Research towards limitless Li-ion battery lifetime
    15 June 2016, Power Electronics / Power Management, Electronics Technology
    Researchers cycled the testing electrode up to 200 000 times over three months without detecting any loss of capacity or power, and without fracturing any nanowires.
  • Transducer links sound, light and radio waves
    18 May 2016, Electronics Technology
    Interfacing these different types of physical systems could circumvent some of the problems of components that rely on just one type of information carrier.
  • Laser breakthrough made by SA and Italian team
    20 April 2016, News, Electronics Technology
    Nature Photonics recently published research by a team from South Africa and Italy demonstrating a new type of laser that is able to produce laser beams ‘with a twist’ as its output.

 
 
         
Contact:
Technews Publishing (Pty) Ltd
1st Floor, Stabilitas House
265 Kent Ave, Randburg, 2194
South Africa
Publications by Technews
Dataweek Electronics & Communications Technology
Electronic Buyers Guide (EBG)

Hi-Tech Security Solutions
Hi-Tech Security Business Directory

Motion Control in Southern Africa
Motion Control Buyers’ Guide (MCBG)

South African Instrumentation & Control
South African Instrumentation & Control Buyers’ Guide (IBG)
Other
Terms & conditions of use, including privacy policy
PAIA Manual





 

         
    Classic | Mobile

Copyright © Technews Publishing (Pty) Ltd. All rights reserved.