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  1. JuliaDee

    Best Targtet Material for Magnetic Sensing?

    Many thanks to all, especially dgallup and RyreInc! Julia
  2. JuliaDee

    Best Targtet Material for Magnetic Sensing?

    Thanks, dgallup! I'm currently prototyping with cylindrical neodymium N42 magnets from K&J, 0.2 - 0.31" dia, 0.5 - 0.63" long. Typical Br max is approx 13,000 Gauss. A 0.25" coil-target distance should be manufacturable. K&J's field strength calculator tells me I will see 400 Gauss with those...
  3. JuliaDee

    Best Targtet Material for Magnetic Sensing?

    Thanks, MagMike, however you have misunderstood the question. I am not asking what type of magnet to use in the sensing coil, I am asking what is the best material for the *target*. In the guitar pickup analogy, that would be akin to asking what is the best material to make the string out of. In...
  4. JuliaDee

    Best Targtet Material for Magnetic Sensing?

    Argh, my first post here and there's a typo in the topic title. Sigh. Thanks for the reply, IRstuff. No, this is not for school - I have 35+ years of experience in my field (which doesn't usually involve a whole lot of magnetics, hence my inquiry to this fine forum). There are indeed many...
  5. JuliaDee

    Best Targtet Material for Magnetic Sensing?

    I'm designing a sensor that needs to convert mechanical vibration in a target object to an electrical signal. The situation is very analogous to a guitar pickup, where a magnet or pole piece is surrounded by several thousand turns of wire, except that in my case I have some control over the...

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