Vector 2X Compass for use in a Robot
David VanHorn email (remove spam text)
>around the house (not installed in a vehicle), there should'nt be a problem
>with nearby magnetic fields.
Well.. Concrete pad has re-bar, that's a problem.
Steel beams used underneath houses too.
>The dual PM motor drive will be about 6" from
>the compass but a standard R/C servo will be about 3" away.
The servo is likely less of a problem than the motor.
The motor will leak field from the internal magnets, but it's also a big
field-distorting lump of stuff.
Check with a hand-held compass. If it wiggles when you add-remove parts,
then you're distorting the field significantly.
Fields around wires carrying motor currents could be interesting too.
Try to get the source and return wire routed as a pair.
Dave's Engineering Page: http://www.dvanhorn.org
Where's dave? http://www.findu.com/cgi-bin/find.cgi?kc6ete-9
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email mitvma.mit.edu with SET PICList DIGEST in the body listserv
In reply to: <email@example.com>
See also: www.piclist.com/techref/index.htm?key=vector+compass+use
You must be a member of the
piclist mailing list
(not only a www.piclist.com member) to post to the