EU support to bridge gap between theoretical research and commercial applications
Professor Mathias Kläui of the Institute of Physics at Johannes Gutenberg University Mainz (JGU) has received a grant from the European Research Council (ERC) to develop a new type of magnetic sensor. This allows Kläui to develop a concept for a sensor further that will eventually be able to record large numbers of revolutions. The new components will be designed for use in the automotive or automation industries and will replace current energy-hungry sensors. The support takes the form of a Proof of Concept Grant from the European Research Council to the value of EUR 150,000 that has been awarded on the basis of the initial results achieved by Kläui under his ERC Starting Grant. The new magnetic sensors are expected to be ready for pilot applications within 18 months of the project start.
Current magnetic sensors used to precisely determine angular position have the disadvantage of only being able to measure angles between 0 and 360 degrees. They are thus incapable of detecting more than one revolution and are also unable to differentiate between angles of 10 and 370 degrees. There are many technical systems, such as a steering wheel, that make several revolutions in use. Professor Mathias Kläui's work group has come up with a concept that builds on the movements made by magnetic domain walls. There are multi-turn angle sensors that are presently available that can measure up to 16 revolutions. The new concept goes far beyond this and uses an innovative geometry to make a much larger number of revolutions quantifiable. This is of fundamental importance to automation technology, for example.
"We have already gained experience and validated the theoretical physics behind the new sensor in the lab. Now we have to see whether it can also be produced on an industrial scale at a reasonable price," said Kläui.
The new MultiRevolution Sensor does not need a power supply to record and save data, but merely for the occasional logging of the revolution counter. The new technology offers enormous advantages for industrial users. Current non-magnetic sensors that sense multiple turns are expensive and complex as they combine an angle sensor with non-volatile memory components. These can be replaced by a simple, energy-saving magnetic element. The expectation is that the market for micro-magnetic sensors will expand significantly as they can record thousands of revolutions rather than only one or very few and new applications can be opened up.
The European Research Council launched the Proof of Concept Grant in 2011. It is available only to those researchers who have already received an ERC Grant and now plan to further work on the concept developed during the supported project to transform it into a viable innovative product. Professor Mathias Kläui had already received an ERC Starting Grant to support his project "Spin currents in magnetic nanostructures (MASPIC)". Kläui has held a professorship at the Institute of Physics at Mainz University since 2011 and was appointed Director of the Materials Science in Mainz (MAINZ) Graduate School of Excellence in 2012. In July 2014, he was elected Coordinator of the Executive Committee of the Gutenberg Council for Young Researchers, which is dedicated to supporting excellent young academics at Mainz University.
Professor Dr. Mathias Kläui
Condensed Matter Physics (KOMET)
Institute of Physics
Johannes Gutenberg University Mainz (JGU)
55099 Mainz, GERMANY
phone +49 6131 39-23633
http://www.uni-mainz.de/presse/16698_ENG_HTML.php (press release "Domain walls as new information storage medium", 23 Sept. 2013) ;
Petra Giegerich | idw - Informationsdienst Wissenschaft
The quest for the oldest ice on Earth
14.11.2016 | Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung
Empa Innovation Award for new flame retardant
09.11.2016 | Empa - Eidgenössische Materialprüfungs- und Forschungsanstalt
Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.
Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
09.12.2016 | Life Sciences
09.12.2016 | Ecology, The Environment and Conservation
09.12.2016 | Health and Medicine