User talk:Geek3

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Appreciate your work in this area and also AWESTRUCK by your contributions to commons. Kmccook (talk) 17:53, 29 October 2023 (UTC)[reply]

Thank you! --Geek3 (talk) 18:49, 29 October 2023 (UTC)[reply]

Your image showing Magnetic Scalar Potential of a cylindrical magnet is extremely useful to me; I am an engineer with a project that uses hall-effect sensors. Is it possible to pay you to make a similar image with L=D and showing more Scalar Potential lines? I am happy to pay well for your time (it would take me a long time to figure out how to do this myself). I need only usage rights (not ownership) of the resulting images. Sorry to put this here, I do not know how to properly contact you. Lippold(@)HakenAudio(dot)com 140.177.154.160 12:25, 20 June 2024 (UTC)[reply]

Hi, I created another image that should fit your needs: VFPt cylinder magnet potential+contour.svg. Note that you can use the Python code at https://commons.wikimedia.org/wiki/User:Geek3/VectorFieldPlot and the commands in the image caption to recreate the image and modify it. Of course you can also use it to compute potential values at any point. In fact the exact potential of a cylinder magnet is simply obtained by considering two opposite uniformly charged disks at the cylinder ends. --Geek3 (talk) 14:54, 20 June 2024 (UTC)[reply]

Thanks so much, you are so helpful. If there is a way to donate to your efforts, please let me know (by email) else I will take the sum and donate it to Wikipedia general funds. 140.177.154.160 14:54, 26 June 2024 (UTC)[reply]

You're very welcome. Whatever this is worth to you, you may donate to the Wikimedia foundation. This way you keep the free knowledge alive, and that is what means most to me. --Geek3 (talk) 17:35, 26 June 2024 (UTC)[reply]

This graph (with equipotential lines based only on the vertical component of the magnetic field) https://drive.google.com/file/d/1Ay_p50p80OCx-UY8mmKNjn6O5fqsXTZa/view?usp=sharing is important to me because of my hall sensor placement relative to the magnet - we were only able to graph this because of the code and help you provided, thanks so much. (Admittedly the graph has sign errors, but otherwise i think it is correct...) I am building niche music instruments, but there is a major new use of magnets to replace wired connections in sliders and switches in hand tools and electric cars -- the Texas Instruments DRV5056A2 are typical hall sensors used in those applications -- such sensors only sense magnetic field strength in one dimension, so I think there is a wider audience of engineers for graphs that show such equipotential lines? 140.177.154.160 20:05, 9 July 2024 (UTC)[reply]