NXT programmable brick : 274


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Subject:	Re: Has anyone figured out how to improve the NXT light sensor?
Newsgroups:	lugnet.robotics.nxt
Date:	Mon, 18 Dec 2006 15:45:46 GMT
Viewed:	13179 times

In lugnet.robotics.nxt, Brian Davis wrote: > In lugnet.robotics.nxt, Philippe Hurbain wrote: > > > Your fiber optic cable idea is interesting... and it works well! > > I've also used this the other way around, using a fiber optic cable to route > light to the phototransistor itself. Do this with more than one light sensor, > and you can have much better spatial resolution (the ends of two fiber optic > cables can be right next to each other; not so the light sensors themselves). Hi Brian, What kind of application needed this precision? Line follower? Did you need to shield the fiber to avoid stray coupling of light to the phototransistor? Philo

Message has 1 Reply:

		Re: Has anyone figured out how to improve the NXT light sensor?
(...) Yes. I didn't end up using it because speed ended up being more critical than precision, but for narrow lines I may go back to it. I suspect I might be able to use it to follow lines drawn by a black marker. (...) No. Well, kind of. I used a (...) (18 years ago, 18-Dec-06, to lugnet.robotics.nxt)

Message is in Reply To:

		Re: Has anyone figured out how to improve the NXT light sensor?
(...) I've also used this the other way around, using a fiber optic cable to route light to the phototransistor itself. Do this with more than one light sensor, and you can have much better spatial resolution (the ends of two fiber optic cables can (...) (18 years ago, 18-Dec-06, to lugnet.robotics.nxt)

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