What is the best way to extract electricity from a pendulum?

[Rapadura]

I think I should reformulate:

What is the very best way to extract electricity from this pendulum, with maximum output wattage AND minimum friction (including "magnetic friction" due to Lenz's Law), in order to make it swing for as long as possible?

[mr_bojangles]

well, if you use a magnet as a counterweight (being as direct as possible), and allow its swing to pass an inductor coil, this would generate electricity


now, the pendulum has the most momentum at the bottom of its swing, so with previously said method, logically the coil would be placed at the bottom of the arc

the more mass a pendulum has, the more efficient, as well as the length of the "string"

the stronger the magnet is, the more drag it will encounter

similarly, the closer the magnet swings to the coil, the more drag you will induce


neither of which will induce nearly the amount of energy it takes to keep the pendulum going


also, the faster it travels the more drag you will encounter

that is the most direct way i can think of, indirectly i would look at the milkovic 12x machine

while i am partially doubtful it actually does increase output, its the best example of how to have a pendulum generate electricity without any induced drag directly into the pendulum itself

[TechStuf]

What is the very best way to extract electricity from this pendulum...

That would depend on what you mean by "THIS" pendulum.  It's all relative.


From what is given in your description, the least amount of friction may be provided by a fulcrum allowed just enough vertical movement to impinge upon a bending piezo....


And of course, aerodynamic pendulum and swing arm shapes....I would also recommend a dry bearing hub assembly, as is found on the older style roller skates.



Blessings in Christ Yeshua,



TS

[onthecuttingedge2005]

remember that gravity is only a return of expended energy, nothing more.

[Judges]

while i am partially doubtful it actually does increase output, its the best example of how to have a pendulum generate electricity without any induced drag directly into the pendulum itself

I am Quoteing Mr.Bojangles above,,,,Pendulum sounds good,,,maybe with some left over?

He has said it much better than I,,

What I would add would be,dont stop work
on it and don't stop posting,your results.
Sounds Durn Good to me.
Good Luck and Play SAFE
Joe in Texas