Electronics > Metrology

Measurement and direction of information

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John Heath:
Thanks for posting the video. I enjoyed it. Odd how it is the jar that holds the charge not the plates? While I have your attention all current  cell phone have excellent 3 dimensional hall effect transistors in them. It will display X Y and Z including B for net magnetic field. Perhaps you could start there for your proximity detector. As for my stuff being over your head trust me it is not. If you google to have it explained by someone more qualified than myself it will make more sense.     


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