Recent content by carpekd

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    Magnetic Field Strength Vs. Angle of direction

    I have a simple question... does the magnetic field angle of direction vary when you vary the field strength? For example, say i have a magnetoresistive sensor, which, to my knowledge only detects the magnetic field angle of direction (unlike a halls, which senses field strength). I place...
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    Material Property Effects On Magnetic Circuit

    The coil will be a cylindrical coil with back iron on the outside (not shown). The coil will be energized with dc current and will operate on the voice coil principle. A similar commercial product is described here: http://www.designworldonline.com/moving-magnet-voice-coil-actuators/#_ My...
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    Material Property Effects On Magnetic Circuit

    I'm building a linear actuator and I don't have much experience with magnetic circuits... A rough sketch of what I'm building is attached. I'm trying to determine if the materials I'm using for the shaft and shaft collar will have a detrimental effect on overall force output. Right now, my...
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    How Does Reversing Current Direction Affect Magnet Position in a Coil?

    Hello all, In the sketch attached below, I have a cylindrical coil with a cylindrical permanent magnet located in the center (assume the magnet can only move in the axial A-B direction). It is my understanding that if the coil had current flowing through it so that side A was the south pole...
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    Tubular permanent magnet linear motors

    Hello all, I'm a mechanical engineer who recently recently became interested in linear motors and generators (random, i know). I've narrowed my interest to tubular linear permanent magnet motors (servo types) such as the ones made by these people...
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