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September 9, by David Tenenbaum, University of Wisconsin-Madison A prototype electric motor that uses a new principle for transforming electricity into rotary force is being developed at C-Motive Technologies, a company co-founded by UW-Madison assistant professor Dan Ludois.
Dan Ludois A tabletop motor using an entirely new driving principle is under development at the headquarters of C-Motive Technologies, a startup business that is commercializing technology from the College of Engineering at UW-Madison. The distinction may sound minor, but it could solve a number of practical problems while saving money, he explains.
Actually, the concept is not entirely new: Benjamin Franklin and others described and built motors based on electrostatic forces back in the 18th and 19th centuries, but none achieved practical operation.
Since the widespread adoption of electric motors a century ago, magnetism has been the only practical source of rotation.
Magnetism is easier to exploit than electrostatic fields due to the properties of naturally occurring materials and simple engineering techniques.
However, new advances in materials, mechanical engineering and advanced manufacturing may enable electrostatic motors. Inwhile Ludois was finishing a Ph.
The new technique, he realized, could deliver major advantages in weight, material cost, operating efficiency and maintenance requirements. In the motor on display, nested stationary and rotating plates are held hairs-width apart by a unique air-cushioning strategy.
An electric voltage delivered to the fixed plates creates an electrostatic field that attracts the rotating plates in a way that forces them to spin. This type of coupling can be used "to power things that move without touching," Ludois adds.
The breakthrough relies on electronics that precisely control a high-voltage, high-frequency electric field and fluid mechanics to keep the surfaces close without touching.
By saving weight and materials, and boosting efficiency, the new design should give the company a bottom-line advantage. The new design avoids the use of precious "rare earth" metals and substitutes aluminum for the more expensive copper found in magnet windings of conventional motors and generators.
C-Motive has had its share of help from UW-Madison. Two years ago, the idea won two awards in the G. Inthe Wisconsin Alumni Research Foundation supported Ludois and his colleagues for patent protection on the discovery, giving them the leverage to pursue additional funding.
For me, on a personal level, that would certainly bring my efforts full circle.Student entrepreneurs dazzle at UW business plan competition By Tom Breuer Taylor Fahey, Cedric Kovacs-Johnson, and Chase Haider show off Spectrom, their entrant in the G. Steven Burrill Business Plan Competition.
Madison, Wis. - The instant Anca Copaescu, then a second-year MBA in the University of Wisconsin's School of Business, heard about the G. Steven Burrill Technology Business Plan Competition, she knew she wanted to enter. It wasn't just the prospect of winning $10, - though the money definitely got her attention.
It was the sudden .
Statistics Project - Statistics Project I have been given instructions to collect data for my GCSE statistics coursework and then to represent them by interpreting them using graphs and attributes, which I think influence the prices of a second hand car.
View Cedric Kovacs-Johnson’s profile on LinkedIn, the world's largest professional community. G. Steven Burrill Business Plan Competition Winner for Spectrom's entry in the Title: CoFounder at Flume Health.
About the BME Undergraduate Design Curriculum Design curriculum history. The Biomedical Engineering undergraduate program was founded in with design at the heart of the curriculum. In , he said, the competition drew 10 teams and had three judges.
This year, 35 teams’ business plans were reviewed by around 35 judges, including alumni, .