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11039  |  11041
Subject: 
Re: Efficiency was: Generating power
Newsgroups: 
lugnet.robotics
Date: 
Thu, 16 Mar 2000 02:10:20 GMT
Original-From: 
Doug Weathers <weathersd@metro=nomorespam=.dst.or.us>
Viewed: 
1617 times
  
in article e0.222e2ae.25fbc2e7@aol.com, lego-robotics@crynwr.com at
lego-robotics@crynwr.com wrote on 3/11/00 7:40 AM:

I found that it is possible to use the motors as generators weeks
ago. I have been dabbling with the design  trying to improve efficiency. In
an email, I read that the efficiency was 97%. How would one figure out the
efficiency??

That may have been my figure.  Here's what I did.

I connected two motors together and put a crank on each one.  With no load,
I found that 34 rotations on one motor produced 33 rotations on the other
motor.  That figures to 97% efficient.

This is with no load, of course.  There would be significant losses if there
was a load on the output.

Check out http://www.rdrop.com/~dougw/lego/cranker.html to see what I did
with this technique.


--------------------~~~Ant~~~---------------------





Message is in Reply To:
  Re: Efficiency was: Generating power
 
I found that it is possible to use the motors as generators weeks ago. I have been dabbling with the design trying to improve efficiency. In an email, I read that the efficiency was 97%. How would one figure out the efficiency?? (...) (25 years ago, 11-Mar-00, to lugnet.robotics)

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