Appliances that need no cables or batteries but operate purely on power generated from their surrounding vibrations could save manufacturers and consumers large sums of money, according to scientists at the University of Southampton.
Professor Neil White and his colleagues at the Universitys Department of Electronics and Computer Science realised three years ago that sensors were being used in increasingly diverse application areas where physical connections to the outside world were difficult. For example, if a sensor was embedded within a structure or appliance, routine maintenance such as changing batteries could cause significant problems and cost time and money in terms of downtime.
Professor White and his team set out to explore the possibility of a self-powered sensor. They explored two devices: a magnet and coil arrangement where relative movement between the coil and the poles of a permanent magnet generates electricity by electromagnetic induction; and a second device based on piezo-electric material to generate electrical energy from vibration-induced deformations. They adopted the former device in the development of their system. The power generated by the sensor is based on its vibrations, so they needed to find applications that vibrate in order to test its effectiveness.
Sarah Watts | alfa
Nano-scale process may speed arrival of cheaper hi-tech products
09.11.2018 | University of Edinburgh
Nuclear fusion: wrestling with burning questions on the control of 'burning plasmas'
25.10.2018 | Lehigh University
Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.
Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...
Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.
Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...
Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.
In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...
On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.
When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure
Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...
09.11.2018 | Event News
06.11.2018 | Event News
23.10.2018 | Event News
16.11.2018 | Health and Medicine
16.11.2018 | Life Sciences
16.11.2018 | Life Sciences