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Subject: 
Motor/generator efficency (was Re: Micro Scout can run off its own motor)
Newsgroups: 
lugnet.robotics
Date: 
Tue, 14 Sep 1999 05:24:40 GMT
Viewed: 
779 times
  
In lugnet.robotics, Arjen Gerstel writes:
If you connect two motors to each other (i used 'new' technic motors) and
turn one of them manually, the other one will turn too. You can transfer
rotational motion through an electric wire this way.  Actually, the motor
you're turning simply acts as a generator.
It's not very efficient, but a lot less cumbersome than some other methods
of energy transfer.

I saw this when Lego was showing off mindstorms here in Syd.

THEY (lego) claimed the setup was almost 100% efficent. i.e. one rotation of
generator = one rotation of motor. Have you got the wires hooked up the right
way? (assuming there is A right way!)

Has anyone else checked this out and can comment?

James from OZ



Message has 2 Replies:
  Re: Motor/generator efficency (was Re: Micro Scout can run off its own motor)
 
James Howse wrote in message ... (...) of (...) Only without load ! Very useful still, but not when actual force is needed. Eric (25 years ago, 14-Sep-99, to lugnet.robotics)
  Re: Motor/generator efficency (was Re: Micro Scout can run off its own motor)
 
(...) Did they by any chance mention the Second Law of Thermodynamics *) in this context ? ;-)) (They probably hid it in the term "almost"...) Greetings, Martin "Perpetuum mobile rules!" E. *) pop version**) : No Energy Conversion Without Loss **) (...) (25 years ago, 15-Sep-99, to lugnet.robotics)

Message is in Reply To:
  Re: Micro Scout can run off its own motor
 
If you connect two motors to each other (i used 'new' technic motors) and turn one of them manually, the other one will turn too. You can transfer rotational motion through an electric wire this way. Actually, the motor you're turning simply acts as (...) (25 years ago, 13-Sep-99, to lugnet.robotics)

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