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Melexis 90217 Hall-Effect Sensor To Measure Distance — Parallax Forums

Melexis 90217 Hall-Effect Sensor To Measure Distance

GeorgeLGeorgeL Posts: 131
edited 2009-12-21 05:54 in Accessories
I am looking into using a hall effect sensor (Melexis 90217 Hall-Effect Sensor) to measure distance.
The idea is to basicaly make a gausmeter.

I know this is possible based on this "guide" http://www.coolmagnetman.com/magmeter.htm

What I am interested in is how sensitive (and accurate)·is this sensor.
I am looking at seeing a change of 1mm using the Parallax recommended magnet:

http://www.parallax.com/Store/Sensors/CustomKits/tabid/134/txtSearch/605-00006/List/1/ProductID/91/Default.aspx?SortField=ProductName%2cProductName

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