Diagram for read-write arm?

[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

 

[Arno Wagner]

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.

And what would those details be?

Arno

 

[calypso]

And what would those details be?

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

--
"Naklonjens li cackalicau bombardiru ?" upita sisao jebe vodoinstalatero
podmazuje. "Nisam ja nikog bombardiro !" rece gledalisteo jebe
"Ja samo Stojadinog letija nezdravm !" By runf

Damir Lukic, calypso@_MAKNIOVO_fly.srk.fer.hr
http://inovator.blog.hr
http://calypso-innovations.blogspot.com/

 

[Salmon Egg]

And what would those details be?

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

 

[Arno Wagner]

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.

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

Arno

 

[calypso]

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.

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/

 

[Tom Del Rosso]

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.

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