Different speaker design: (two magnets instead of one, and one electricity direction flow)

[Skybuck Flying]

One major problem is that the speaker cone must move in a controlled
manner which follows a sinusoidal signal. Just applying and removing
voltage makes it move abruptly and then slams to a stop when the metal
hits the magnet.

Ok this is a valid complaint.

I see two ways of solving it:

1. Trying to use timing to attract the magnet to the metal and then quickly
let go of power to get the magnet in the correct position.

This might be difficult to do though if not impossible because of high
precision timing requirements and shoot overs of magnetic strength.

2. Better way might be to use the strength of the magnetic field to move the
membrane where it needs to be.

This would change the design from a simply on/off to a more (what I believe
they call) an analog system/design...

Where the power/voltage fluctuations indicate the sinus wave...

So for example:

+1v+2v+3v+4v+3v+2v+1v-->

Would produce such a wave:

/\
/ \
/ \

(Pyramid/JigSaw)

(The strength of the magnetic field is determined by the
voltage/power/ampere/whatever and can therefore be controlled by it...)

Bye,
Skybuck.

 

[Badmuts]

I don't see the problem.

That is exactly the problem.

Bm

 

[V__i___n_ce__19_7_1_]

That is exactly the problem.

Bm

You are the problem, suck your dick.

 

[polleke]

Hello,

I read about how speakers work, and it appears there is a magnet/coil...
power is put on it... and the flow of power is reserved in quick
succession...

This makes the speakers go up and down/vibrate.

I believe switching/reversing flow of power might be bad for electronics
because of the hammering effect. Or maybe it just tears down the electronics
(?).

So I was thinking about a different design... (which might actually be worse
?) but ok... I am still going to describe it here... in case it's not
worse... and just to figure out if it has ever been tried before.

The idea for a new (?) speaker design goes as follows:

1. Instead of one magnet there would be two magnets.

One magnet to make the speaker go up.
One magnet to make the speaker go down.

2. Instead of reversing the flow of power the following would happen:

One cable to put power on the top magnet.
One cable to put power on the bottom magnet.

3. To make the speaker vibrate the following would happen:

3.1 To make the speaker go up:

Put power on top magnet.
Cut power on bottom magnet.

3.2 To make the speaker go down:

Cut power on top magnet.
Put power on bottom magnet.

This would create the vibrations needed to move the air.

The adventage could be the following:

1. I hope it's much easier to put power and cut power than it is to actually
reverse power ?

(The hope is that this will make the electronics easier, cheaper, less warm
and last longer).

2. Electricity flows into one direction which might prevent hammering ?

(This is where I am not sure... power on and power off... seems a lot like a
water facet going on and off and thus creating hammer effect ? oh-oh )

Point 2 might be why this is a bad idea ?!?

Still I am interested in what you "experts" think of this idea, questions:

1. Has it been tried before ? If so what were the results ?

2. If not would it be possible ?

3. Would it be a good idea ?

Bye,
Skybuck.

it does work however due to the non linearity of the magnetic field the
sound quality is very bad.
thats why a moving coil in a permanent field is being used.
and a water speaker does exist. well hydraulic one.