magneic braking for bicycle
magneic braking for bicycle
(OP)
hi all,
I need a device similar to that found on exercise bikes that applies torque to the wheel to create resistance for the user. I believe the device is a magnetic brake of some type. Some use the trademark 'MAGNTEC'. I just can't seem to locate the device anywhere.
Any ideas?
thanks
-lp
I need a device similar to that found on exercise bikes that applies torque to the wheel to create resistance for the user. I believe the device is a magnetic brake of some type. Some use the trademark 'MAGNTEC'. I just can't seem to locate the device anywhere.
Any ideas?
thanks
-lp





RE: magneic braking for bicycle
RE: magneic braking for bicycle
A ~1/3HP capstan-coupled PMDC motor and incandescent lamps work well. [Hot doggers have burned out series pairs of 150W lamps in 30 seconds.]
RE: magneic braking for bicycle
RE: magneic braking for bicycle
Andrew
RE: magneic braking for bicycle
Please, notice that the non-abrasive braking has been applied to light rail vehicles in Europe for more than 40 years. The abrasive braking principle might also be used. The most of rail vehicles in USA are still using it. It produces slip-slides, sqeeeeaking noises, etc.
RE: magneic braking for bicycle
RE: magneic braking for bicycle
RE: magneic braking for bicycle
Just a conducting disk with magnets on each side.
Its true the torque required to pedal will not be linear
with speed. But it seems to me this would be a good thing.
As you pedel faster it gets progressively harder to pedal.
If you use electromagnets a current control could be
mounted on the handlebars to allow user to tailor the resistance.
Rodar
RE: magneic braking for bicycle
http://www.phys.ufl.edu/demo/mainlist.html
for: Eddy Brake 1 and Eddy Brake 2
Apparently, this is what is mentioned in gcaudill (Electrical) Apr 3, 2003 posting.
http://www.usc.edu/CSSF/History/2002/Projects/J02.pdf
for Anthony Y. Chong Project J0208 Electromagnetic Brakes