Subject:
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Re: A new sensor idea (perhaps)
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Newsgroups:
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lugnet.robotics
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Date:
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Fri, 14 Jan 2000 02:30:56 GMT
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Viewed:
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559 times
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John Barnes wrote:
> #2. Build a grabber that can pick up a quarter.
>
> Now that could be tricky! Sometimes, even the human
> end effector has trouble with that one!
Well, I'm glad I read the thread first since my two suggestions were
going to be a magnet and a suction cup (either with or without a vacuum
- a suction cup by itself should be able to do the job). (I was going to
ask if american quarters were magnetic not having one handy to test
with.)
With the magnet approach you don't even need the sensor - just use a
hollow cylindrical electromagnet encircling a touch sensor - when the
touch sensor is activated it is time to put the quarter in the
collecting bin and then return to the sweeping position.
Now I see how unoriginal I was! I'm trying to come up with a third
suggestion, but I couldn't come up with something that would work
reliably. Anyone have a *reliable* alternative to suction or magnetism?
alex
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Message is in Reply To:
 | | A new sensor idea (perhaps)
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| I was musing over what the well sensored robot would be sensing next and it crossed my mind that a small metal detector sensor might be an interesting addition. Light sensor electrical interface. Brick sized. Limited range but could provide (...) (25 years ago, 13-Jan-00, to lugnet.robotics)
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