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Direct Mounted pickups

Alfang said:
I get all that. but the string is nevertheless moving in front of that magnet, and that is pushing and pulling on the magnet itself albeit a small amount of course.

Can you explain why you think the string moving in front of the magnet exerts force on the magnet itself?

EDIT
err.. I left out the word 'significant' above =p
What I meant is why do you think this is significant in this case?  The force is much too small to have any effect on the magnet itself..
 
well.........................Alfang does have a point.
The force of magnetic attraction makes the magnet and the ferromagnetic material want to come together. Which one moves to the other is not a given, but is determined by which one has the least resistance to prevent it from moving. Now if the string is moving and the pickup is mounted on springs, then the law of magnetic attract does not prevent the magnet from moving but instead makes the magnet want to move with the string, therefore making the entire pickup move. The frequency that it develops is dependent on how it overcomes the forces holding it still.
But in all practicality, because all of the strings will be moving in different frequencies and direction, this is such a small factor I think we can ignore it. We can state however that the larger the ferromagnetic mass of the string the more pull it will have.
 
magnets.jpg
 
Jusatele said:
well.........................Alfang does have a point.
The force of magnetic attraction makes the magnet and the ferromagnetic material want to come together. Which one moves to the other is not a given, but is determined by which one has the least resistance to prevent it from moving. Now if the string is moving and the pickup is mounted on springs, then the law of magnetic attract does not prevent the magnet from moving but instead makes the magnet want to move with the string, therefore making the entire pickup move. The frequency that it develops is dependent on how it overcomes the forces holding it still.
But in all practicality, because all of the strings will be moving in different frequencies and direction, this is such a small factor I think we can ignore it. We can state however that the larger the ferromagnetic mass of the string the more pull it will have.
Swallows fly south for the winter, yet these are not strangers to our land......
 
Swallows fly south for the winter, yet these are not strangers to our land......
[/quote]

1st soldier with a keen interest in birds: Are you suggesting coconuts migrate?
King Arthur: Not at all. They could be carried.
1st soldier with a keen interest in birds: What? A swallow carrying a coconut?
King Arthur: It could grip it by the husk!
1st soldier with a keen interest in birds: It's not a question of where he grips it! It's a simple question of weight ratios! A five ounce bird could not carry a one pound coconut.
 
jusatele nailed my point , thanks.  If you take a magnet and a piece of iron and hold them as close as you can, without touching, you gotta hold back on the iron as equally as you do on the magnet, If you didn't know which was the magnet and which was the iron, you couldn't tell which was pulling on which.  The same applies to magnets and strings. It's simple. lets end this silly debate. I'm sorry I chimed in in the first place, I can't believe this made it 5 pages long
 
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