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Subject: 
Re: Angle Sensor; 1999 Catalog
Newsgroups: 
lugnet.robotics
Date: 
Fri, 5 Feb 1999 16:20:19 GMT
Original-From: 
Carlson, Doug R (MN65) <carlson_doug@htc.#Spamcake#honeywell.com>
Viewed: 
1017 times
  
The LEGO sensor can keep up with a motor directly connected to
it.

Has this been everyone's experience? I have not had the chance to
experiment with my angle sensors very much since I got them, but by
hooking one up to the RCX and VIEWing the sensor reading (sensor set to
angle via Command Center), it appeared to me that the shaft had to be
rotating pretty slowly to keep the RCX from missing counts. How slowly?
About as slow as the micro motor, maybe a little slower, as I recall.
Perhaps the display of the RCX doesn't update as quickly as the internal
counters..?

Regards,
Issac.

I am using two angle sensors in my synchro drive bot and both are rotating
at
mini motor full speed. There have been times where it seemed to drop a few
counts ( approx. 1% )
but I have yet to verify this. I only noticed this because after running my
bot through several square
patterns the turntables had rotated several degrees past where they should
have stopped. I really
need to verify that this wasn't a program error ( more than possible ). In
any case, the angle sensors
will work at an rpm close to that of a mini motor at full speed. I'll look
into this more this weekend and
post any new results.




Doug Carlson
dcarlson@net-info.com
carlson_doug@htc.honeywell.com
http://www.net-info.com/~dcarlson
--
Did you check the web site first?: http://www.crynwr.com/lego-robotics



Message has 1 Reply:
  Angles and Diagonal Lines (was: Re: Angle Sensor)
 
(...) I run a plotter with two lightly loaded 'old' 9v motors. At power level 4, the angle sensors dropped readings. I geared the sensors down 3:1, and they seem to work fine now. The newer 9v motors are slower - your results may vary. (BTW: the (...) (26 years ago, 5-Feb-99, to lugnet.robotics)

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