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Subject: 
Re: Angle Sensor
Newsgroups: 
lugnet.robotics
Date: 
Sat, 27 Mar 1999 19:58:51 GMT
Original-From: 
Michel Verhagen <mive@xs4all.nl[StopSpam]>
Viewed: 
916 times
  
Well, then I guess I need to build my own rotation sensor using a "Potmeter"
(variable resistor) because I need a real angle, actually I need an angle
per time value. Is this is possible?
I saw something about this on a website in the mindstorms ring, using a 470
ohm resistor in series with a variable resistor of about 1M ohm.

Did someone ever tried to balance a long broom on his hand or finger? I'm
creating a car that does just that using fuzzy logic...

Greetz

Michel


-----Oorspronkelijk bericht-----
Van: Ralph Hempel <rhempel@bmts.com>
Aan: lego-robotics@crynwr.com <lego-robotics@crynwr.com>
Datum: zaterdag 27 maart 1999 17:50
Onderwerp: RE: Angle Sensor


One of the best suggestions (maybe from Ralph Hempel??) that I have seen • for
this sensor is to gear it up (down?) to get the desired rotational
resolution.

-Rob Doucette.

Nope, wasn't me...I'll bet the fancy LEGO milling machine does something
like it though...

Maybe I should buy a rotation sennsor first :-)

Cheers,

Ralph Hempel - P.Eng

--------------------------------------------------------
Check out pbFORTH for LEGO Mindstorms at:
<http://www.bmts.com/~rhempel/lego/pbFORTH/default.html>
--------------------------------------------------------
Reply to:      rhempel at bmts dot com
------------------------------------------------------
--
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



Message has 3 Replies:
  Re: Angle Sensor
 
(...) So long as your software remembers to count the revolutions, it's surely very simple to gear the Lego sensor to get a real angle... however for your idea below, you might need much too much gearing! (...) You shouldn't need fuzzy logic to do (...) (25 years ago, 28-Mar-99, to lugnet.robotics)
  Re: Angle Sensor
 
In article <000e01be788c$3c95fe...@p200mmx>, Michel Verhagen <mive@xs4all.nl> writes (...) Someone posted a URL of a balancing machine recently which used fuzzy logic. Try deja news. (25 years ago, 28-Mar-99, to lugnet.robotics)
  Re: Angle Sensor
 
Michel Verhagen wrote in message <000e01be788c$3c95fe...200mmx>... (...) "Potmeter" It is kind of crude for your application, but there are plans for building a homebrew LEGO rotation sensor off my web page. There is also a pretty good explanation (...) (25 years ago, 30-Mar-99, to lugnet.robotics)

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