Re: Autoguider reference

GregJ888@aol.com
Wed, 3 May 1995 02:39:34 -0400

>Try March and April 74 Sky and Telescope. I believe they used
>photoelectric tubes, but photodiodes could easily be substituted.
From: mbartels@efn.org (Mel Bartels)

>Four-quadrant photodiodes made specifically for optical guiding are
>available. Although they're used to center laser beams etc, they >have
enough sensitivity to use with starlight. I suppose an

>Aart M. Olsen aart@uiuc.edu 217-333-7467

Thanks, real good info.

I have a Four-quadrant photodiode and high performance CMOS Op-Amps. Thought about integrator but not in as elegent a manor. Time constant might be a bit tricky to keep the system from "hunting" but thats to be expected. Looks like I need to build it and post the results...

Thanks again