I am not sure if its even possible but here it goes.. Can you work a metal canned solenoid from a max of 2ft without being attached to the coil ???

 

Say What??? Try that again. A little more specific please.

 

Sure. Just prod it with a broomstick.

 

What isn't attached to the coil? Unless some power supply is attached the solenoid can't operate.

 

Sorry for the confusing ..I have a metal canned solenoid that works say a cable ... Can I induce a voltage or current in the solenoid to make it operate from a distance of about 2' max without being attached to the solenoid it self ???

 

I think the metal can will shield it from all but some very extreme magnetic field. In a field that powerful, it would jump across the room before it would act like a solenoid. If you make the frequency of the magnetic field high enough that the can/solenoid doesn't move as a whole, the frequency will make the magnetic field even less effective because of the shielding canister.

 

To the TS: Sorry, no.

With or without a shield can, and no matter what the (secret!) size of the solenoid is, or it's (secret!) operating voltage, or it's (secret!) power source characteristics (AC or DC). - no.

No matter what the details are, it won't work. If it is a DC solenoid, then it can't work because of Faraday's Law of Induction. Only alternating or varying current can be transferred between two coils (inductors), so no matter how large the coils or the energy suppies are, you can't move DC power this way.

To move AC power either to an AC solenoid or to a AC/DC converter for the DC solenoid, the two-foot distance is a killer. You are basically describing an air-core transformer, the basis for inductive loop comm systems and wireless phone chargers. Wireless chargers move a few watts, but the distance is 1/8" inch. To move just one watt through such a system at 2 feet would take hundreds of watts in the "primary" coil (probably more like thousands). And the coils would be huge. Theoretically, maybe; practically - no.

ak

 

You can use any number of remote control types to operate a solenoid from a distance. You must have a receiver and power source connected to your device.

 

To the TS: no.

With or without a shield can, and no matter what the (secret!) size of the solenoid is, or it's (secret!) operating voltage, or it's (secret!) power source characteristics (AC or DC). - no.

No matter what the details are, it won't work. If it is a DC solenoid, then it can't work because of Faraday's Law of Induction. If it is an AC solenoid you are basically describing an air-core transformer, the basis for inductive loop comm systems. To move just one watt through such a system at that distance would take hundreds of watts in the "primary" coil, and AC solenoids don't work that way anyway so you would have to have a receiving coil separate from the solenoid coil. So - no.

ak

You are just being negative. When innovating and inventing, you should start each sentance with "yes, and..." That way you don't put a damper on innovation. We had some innovation gurus come to our office recently. They were from Corporate and "came to help". So, after shooting down a half-dozen of their ideas, they told me about their "yes and.." Strategy. It was amazing how quickly that strategy helped me.

So, back to the problem at hand. Instead of saying no, I think you should say, "yes, and we can get to your project the day after pigs fly. "

I used something similar in the office that day. My problem was suddenly solved when they left.

 

GopherT'

But then

Ken

 

GopherT'

But then

Ken

I need a beer. Your first video made me so frustrated that I felt like I was at work. Thanks for ruining my Sunday evening.

 

I am in tears... I was in that meeting! And many like it...

 

Sorry! I can empathize.

At one time I was a low end manager of a small department in a company that was being merged with another company. I read "Dilbert". At that time they were going through a merger too. I would see a distressing cartoon about their merger...and two weeks later "we" would have the same stupid thing happen to us.

Ken

 

" just being negative"? is it negative to try over and over to break the laws of physics? is it going to be less impossible just because you think positive? the only way to trsansfer enough power to rowk a solenoid from even as close as two feet is using powe levels like a broadcast station, an rf detector and a real sensative solenoid. K,. C, Biose and others did it at microwave frequencies a long time ago, but it is not really practical.

 

" just being negative"? is it negative to try over and over to break the laws of physics? is it going to be less impossible just because you think positive? the only way to trsansfer enough power to rowk a solenoid from even as close as two feet is using powe levels like a broadcast station, an rf detector and a real sensative solenoid. K,. C, Biose and others did it at microwave frequencies a long time ago, but it is not really practical.

I don't believe in adding sarcasm marks to my comments. I believe it takes away from the sarcastic effect. I don't think there is any way or reason to think more about this project or problem. I am not nearly as creative as the people who succeeded drawing red lines with a blue pencil so I am satisfied to leave this solenoid project sit without a solution but I will be the first in line to congratulate anyone who does solve it - even though I believe it cannot be solved... ever. (unless using an RF transmitting tower as you describe above).

cheers.