Diagram for read-write arm?

  • Thread starter Thread starter Salmon Egg
  • Start date Start date
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Salmon Egg

I would like to see a diagram of just how modern drive's read-wright
arms are assembled. I am trying to understand how these get driven. In
particular, I am interested in the magnetic configuration.

I have tried Wikipedia and Google among other sources, but what I have
found, leaves out details of interest to me.

Bill
 
Previously Salmon Egg said:
I would like to see a diagram of just how modern drive's read-wright
arms are assembled. I am trying to understand how these get driven. In
particular, I am interested in the magnetic configuration.
Click to expand...
I have tried Wikipedia and Google among other sources, but what I have
found, leaves out details of interest to me.
Click to expand...

And what would those details be?

Arno
 
And what would those details be?
Click to expand...

Type of magnets in the arm-assembly, types of voice coils, current,
electronic behind the whole problem, etc?[/QUOTE]

That is about right. I am interested in the magnetic circuit. I believe
that it is in the form of a transformer "E-I" core with permanent
magnets. The coil slides back and forth. Values for the magnetic field
the coil sees is also of interest.

Bill
 
Previously Salmon Egg said:
That is about right. I am interested in the magnetic circuit. I believe
that it is in the form of a transformer "E-I" core with permanent
magnets. The coil slides back and forth. Values for the magnetic field
the coil sees is also of interest.
Click to expand...

Best look into a datasheet or design manual for a moving coild
driver then. Several companies are making them.

Arno
Click to expand...
 
Salmon Egg said:
That is about right. I am interested in the magnetic circuit. I believe
that it is in the form of a transformer "E-I" core with permanent
magnets. The coil slides back and forth. Values for the magnetic field
the coil sees is also of interest.
Click to expand...

Permanent magnet is always Neodymium... About the values of currents and
fields, I don't know nothing...

Like the other guy said - check out the datasheets of driver manufacturers
(driver as a chip, not software driver)... :)

--
"Zajebans li drotu njuku ?" upita Bugara pozdravlja drotu povracu.
"Nisam ja nikog bombardiro !" rece gumaa rascvjetava "Ja samo planinaro tuce blesavm !" By runf

Damir Lukic, calypso@_MAKNIOVO_fly.srk.fer.hr
http://inovator.blog.hr
http://calypso-innovations.blogspot.com/
 
Salmon Egg said:
I would like to see a diagram of just how modern drive's read-wright
arms are assembled. I am trying to understand how these get driven. In
particular, I am interested in the magnetic configuration.

I have tried Wikipedia and Google among other sources, but what I have
found, leaves out details of interest to me.
Click to expand...

Ask in the sci.electronics.* groups, like basics or design.
 
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