- #1
jhudler
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This is an electrical question but bear with me for some background.
I have a project creating an epoxy based granite material.
The sphere packing density is quite high with aggregate sizes from 2 to 600 microns.
So that means I'm left with a very thick mix.
Plus the added complication of doing this in a vacuum.
Requirements:
I need to make a shaker/vibrator (freq from 20 to 200 Hz).
Using a motor to vibrate has been tried and it overheats... go figure :)!
Materials:
1 inch diam x 2 inch long Neodymium magnet.
Lots of magnet wire and even a coil winder.
Supposition:
It seems to me that I could mount magnet to base to vibrate, then create a coil around the magnet (with suitable separation) and drive that? I can dissipate the heat with a simple water jacket created from aluminum tubing and encapsulate that with an epoxy mixture designed to conduct heat which would be mounted to the rack in the chamber.
Question:
Is it possible to create a simple voice coil using a cylindrical magnet?
If so given almost 13000 Gauss, how do I calculate the coil parameters (windings,gauge,amps,voltage).
Or do I need to resort to using Axially magnetized magnet like a speaker?
Or perhaps there are other idea out there to help me solve this problem.
Thanks,
Jack
I have a project creating an epoxy based granite material.
The sphere packing density is quite high with aggregate sizes from 2 to 600 microns.
So that means I'm left with a very thick mix.
Plus the added complication of doing this in a vacuum.
Requirements:
I need to make a shaker/vibrator (freq from 20 to 200 Hz).
Using a motor to vibrate has been tried and it overheats... go figure :)!
Materials:
1 inch diam x 2 inch long Neodymium magnet.
Lots of magnet wire and even a coil winder.
Supposition:
It seems to me that I could mount magnet to base to vibrate, then create a coil around the magnet (with suitable separation) and drive that? I can dissipate the heat with a simple water jacket created from aluminum tubing and encapsulate that with an epoxy mixture designed to conduct heat which would be mounted to the rack in the chamber.
Question:
Is it possible to create a simple voice coil using a cylindrical magnet?
If so given almost 13000 Gauss, how do I calculate the coil parameters (windings,gauge,amps,voltage).
Or do I need to resort to using Axially magnetized magnet like a speaker?
Or perhaps there are other idea out there to help me solve this problem.
Thanks,
Jack
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