opening door

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opening door

Postby babyloon00 » Thu Jan 19, 2012 3:23 pm

Dears,

I have a magnetic door lock HD-EMLOCK-S

I want a system who open the door on request. I tryied to change the polarity (like with an electromagnet), hopping that it will push the metal, but it didn't work.
Did you have any idea?
FYI, I control it through an arduino.

Thx,

Damien
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Re: opening door

Postby robosang » Fri Jan 20, 2012 11:49 am

Don think it can push the metal. OK, I am not sure about reversing the polarity of the magnetic lock can generate difference pole of magnetic energy, never try before. But even it can, it will not push the metal, why? Because south or north pole magnetic field will still pull the metal, right :mrgreen:

If you want to pull or push the metal, the metal need to be a magnetic iron too. When you want to pull, make them opposite magnetic field, south and north. When you want to push, make them same, example north and north.
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