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Sensing electromagnetic fields with a glove - how could I manage it? Answered

Basically, I once read about a guy (an electronics professor I think in Kent University) who had some magnetic sensors implanted into his nervous system in his left arm and now he can feel electomagnetic fields as a kind of pressure. I would like to replicate this in glove format, to preclude the need for experimental surgery. I think it could be done by combining a magnetic sensor (do you even get them?) with a vibrating device and placing the resulting component into a glove. Let me know if I'm barking up the wrong tree or if there's a better way to achieve such a thing. I know hardly anything about electronics but I am a quick learner and if you explain well I will remember.



Best Answer 9 years ago

You'd want some king of coil in the area of guitar-pick-ups and metal-detectors. But these will only pick up oscillating fields, or movement through static fields. - What would you like to do with this?


I hadn't really though about doing anything with it, just for curiosity

What sort of things generate oscillating fields and what generates static fields?

Radio & TV signals are oscillating - you could pick up radio on the glove, but that'd just be a radio on your hand. Mains electricity also produces an oscillating field at ~50Hz, so you could "feel" for wiring in the walls - not a bad idea... L

Then I guess that's what I'd try making it to sense, the mains. That would be pretty cool. Would that remove the need for a multimeter? or could it be adapted to function as one?

I'm quite sure I've picked up mains-hum with an old headphone speaker coil. I'm not sure whether I connected it to another speaker or a piezo, but it did work. L

ok cool I'll do some resarch into these things Thanks for helping so much with ideas. Would you mind if I wanted to pick your brains in the future?

Well, this isn't quite an answer, as I say this with almost 0 authority due to my lack of knowledge in this field, but it sounds like your idea should work. The nuts and bolts of it would be the tricky part. If you could find something that might maybe harness the power of the electromagnetic field and then that would automatically power the vibratory system attached to the fingers, maybe set it so that the vibration system is just always open to power input

You could play with Hall sensors - they DO sense static fields very well. YOu'd wire one up with an amplifier driving a pagermotor like these guys sell

This is pretty well ideal, you could put a bunch of 'em in pockets on the outside of a glove... or in your underwear... but we won't explore the possibilities of that in detail.

The static field from the motors might be a problem, so avoid putting the field sensors near the motors.