On Jun 26, 2009, at 9:19 AM, Jed Rothwell wrote:
Terry Blanton wrote:
We built and tested the bicycle wheel pulsed motor using four NdFeBo
magnets on the wheel and a single stationary coil. I wanted to do
this since I had never seen anyone actually measure the torque of a
Bedini motor. . . . The best COP we were able to obtain was
about 0.24.
How did you measure torque -- or mechanical energy I assume. The
only way to measure torque I know is to stop the machine, which
would affect its performance obviously.
Torque can be measured dynamically using strain gauges, electronic
scales, etc. However, "true" Bedini motors have a third coil that
is used to recover magnetic field energy and charge a battery as the
motor runs. Torque is not the point. One battery runs the motor
while another battery is charged, and then the batteries can be
exchanged in function. COP can be measured by measuring the amp
hours of charge on the charging battery vs amp hours of discharge on
the primary battery. This is really nothing new - no matter who's
name is attached, because it is just a gazillion ways to build an
integrated motor-generator.
This is one area that has been and apparently continues to be
intensively explored (to put it lightly) by amateurs. There is no
reason to expect over unity performance that I have seen. Still, it
is neat to see so many people doing hands on technical things. If
something cool actually develops there will be an army of amateurs
ready to pounce on it.
Best regards,
Horace Heffner
http://www.mtaonline.net/~hheffner/
