On 07/12/2010 07:26 AM, Pete C. wrote:

Spehro Pefhany wrote:

On Mon, 12 Jul 2010 05:08:08 -0500, the renowned "Karl Townsend"
wrote:


1) You could get a proportional regulator.

Eg.
http://www.wattsfluidair.com/catalog...Electronic.pdf

One nice unit. i could use that if it hasn't got a gold plated price tag.
Have you ever got a quote on one?

Karl

Around $500 +/-. Not too bad, IMHO.

Sounds well within reason for use in a production machine that probably
only needs one or two.

If it just falls in there and works, and saves you the day or two of
dinking around that a 'free' one would, most certainly.

--

Tim Wescott
Wescott Design Services
http://www.wescottdesign.com

Do you need to implement control loops in software?
"Applied Control Theory for Embedded Systems" was written for you.
See details at http://www.wescottdesign.com/actfes/actfes.html