Magnetic Linear Encoder v1.2

by MakerBot, published

Magnetic Linear Encoder v1.2 by MakerBot Feb 4, 2011

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The Magnetic Linear Encoder v1.2 is a fantastic building block for positioning systems. The core of this board is the AS5306 chip. This chip is what is commonly called an encoder. What is does is measure and report its location. It does this by reading the changes in the magnetic field as the chip changes position. What this means is that when properly assembled, this board will allow you to detect the the position of something like a linear axis. If you combine this with a motor and a microcontroller, then you can build a closed-loop positioning system whose speed and position can be precisely determined and controlled, even if something unexpected happens.


Available in the MakerBot Store: http://store.makerbot.com/magnetic-linear-encoder-v1-2-kit.html

Docs at: http://wiki.makerbot.com/mle

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Magnetic Linear Encoder v1.2 by MakerBot is licensed under the GNU - GPL license.

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Magnetic strips can be found at the following link http://www.arnoldmagnetics.com/Content1.aspx?id=6077

Yes agree with jtbarclay, this thing is useless if there is no magnetic strip to be bought anywhere!
So post link for magnetic strip!

The magnet pole pair length is 2.4mm (1.2mm north pole / 1.2mm south pole)..... or perhaps one could get away with using a stack of regular magnets (spacers/holders with 0.2 mm gab might be printable if the exact distance is important

Depending on the field strength required.... perhaps a regular audio tape recorder could be used?

Anyone have a source for the alternating pole magnetic strip this chip needs?