A round magnet would make setting correct magnet orientation exponetially harder. The cougar pots have a 40° twist angle and an output of around 0,8 -> 4,3 V. I made this design so the angle is inherently set, just the voltage output can be adjusted via distance of the sensor to magnet. I measured a few magnets and their magnetic flux varies by lot actually, but magnetization angle is pretty coherent. I didnt see much of a difference in field linearity compared to round diametric magnets, but my equipment is also not suited for this. But I dont think it matters much the way the sensor is oriented anyway.
What I really need is a diametric flat square like 5x5x2mm or something..
In the end a KMZ will be much better suited, as I can set the correct voltage via trim pots. And a TLE501X is even better but not natively compatible to the Cougar electronics.
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