The paper entitled "Closing the Loop" talks about
the non-back EMF way of "Hitting the Brakes" with two pulses. That is the paper I remember from 1990 or so.
Thank You for posting that. Damn, I wish understood how to use Laplace's definitions. I know it results in "Yet another transfer function" in the form of a substitution, but its a half year class at the College I work at. While I find I don't suck at math as bad as I used to, for me the only way I'd pass that class is an Act of God.
For those who are wondering how this applies to modern galvos without torsion return spings aka the T-Bar, there is a simple answer. The feedback loop drives the coil to produce a centering aka "Restoring" force.
Steve
Last edited by mixedgas; 11-15-2021 at 19:43.
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