Subject:
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Re: Anyone know how to build a stall sensor?
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Thu, 6 Sep 2001 15:00:43 GMT
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Viewed:
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3721 times
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I assume you have already discarded the simple approach of using
a rotation sensor and detecting that it has stopped rotating. (This
gives you an odometer for free!)
Or if you don't have a rotation sensor, you can use the half width six
hole pulley to interrupt a light in front of the normal light sensor to
tell when the motor shaft stops spinning.
JB
> In lugnet.robotics.rcx, Jerry Kalpin writes:
> > In lugnet.robotics.rcx, Paul Andrews writes:
> > > Hi,
> > >
> > > I'd like to be able to monitor the current being drawn by a motor using the
> > > RCX (not the CyberMaster :-( ), so that I can detect stalls and possibly
> > > spins. I can't believe that this is particularly hard but I can't find any
> > > references to one on the web and I'm not a hardware kind of guy so I don't
> > > really know where to start.
> > >
> > > Has anyone done this? Can anyone point me at schematics/build instructions?
> > >
> > > Regards - Paul.
> >
> > I suppose you've already considered using the white 24 tooth clutch (looks
> > like a gear)to limit the torque and prevent motor stalls...
>
> No. I didn't know it existed. Of itself it is interesting, but I actually
> want to use stalls as a means of collision detection.
>
> >
> > Jerry
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Message has 1 Reply:
 | | Re: Anyone know how to build a stall sensor?
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| (...) Yes. I just got a rotation sensor. Trouble is that the motors could stop for a variety of reasons (like the robot isn't moving). That isn't the real reason though (I could always handle that in software). The real reason is that ever since I (...) (25 years ago, 6-Sep-01, to lugnet.robotics.rcx)
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