Subject:
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Re: Voltage generator
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 20 Jan 1999 16:06:54 GMT
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Original-From:
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jeff <JEFF@avoidspamUEN.ORG>
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Viewed:
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894 times
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Bill,
Interesting you should mention that. I've been toying with the idea of
making a anenometer (wind speed tester) from a motor, but haven't over
come the idea of how to calibrate it. You'd need to place a resistor in
line to help avoid damage to the RCX though. Traditional anenometers are
built with magnets and reed switches, at least from what I've found so
far. My son and I are toying with the idea of making a "rover" that
playes up the hill from our house - Though I doubt we'll use the RCX or
lego - too many kids, etc. We can "play" with the idea with the RCX first
and work out bugs though :)
Jeff D. Payne
UtahLINK Network Operations
On Sat, 16 Jan 1999, Bill Leggett wrote:
> I discovered something that I can see no use for but maybe someone else
> can. If you connect the two power wires together from two motors and
> spin one motor, the other motor spins! The first is obviously generating
> DC voltage in proportion to speed. This could be a poor mans mechanical
> remote control. ie...Spin the motor inside your house and outside in the
> cold the other motor turns something. It is another item for the science
> project people.
>
> --
> Did you check the web site first?: http://www.crynwr.com/lego-robotics
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics
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Message has 2 Replies:
 | | Re: Voltage generator
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| (...) I believe the word is anemometer... it's really just a form of pressure gage. Were you just thinking of attaching a windmill to the motor to produce current? I've seen various ideas postulated on this list for pressure gages (or at least (...) (25 years ago, 20-Jan-99, to lugnet.robotics)
| | | Re: Voltage generator
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| In article <Pine.GSO.3.96.99012....uen.org>, jeff <jeff@uen.org> writes (...) Wait for a calm day and mount it 3 ft above a car, or on the front of a bike with a speedometer. Make several runs in opposite directions at constant speed and take the (...) (25 years ago, 20-Jan-99, to lugnet.robotics)
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Message is in Reply To:
| | Voltage generator
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| I discovered something that I can see no use for but maybe someone else can. If you connect the two power wires together from two motors and spin one motor, the other motor spins! The first is obviously generating DC voltage in proportion to speed. (...) (25 years ago, 16-Jan-99, to lugnet.robotics)
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