On Mon, Jul 03, 2006 at 03:28:41PM +0200, Luis I. wrote:
> Dear Sirs:
> 
> For a movementet (position) tracker with contact, I'm using a hall 
> effect device that outputs a voltage proportional to the position of the 
> target (the way analog joysticks do, centered: half Vdd, increasing or 
> decreasing with the "cursor" position. Due to very strong magnetic 
> fields, the output voltage could be afected. I've been looking to 
> gyroscopes, but they offer an output of relative change of position, not 
> the actual position, and also can be affected by magnetism. The solution 
> could be resistor joysticks?
> 
> If I change to contactless, ultrasonics could be easily affected by 
> industrial electrical and magnetically noisy environment (welding 
> jobs)?  Optics is too much hi tech for me.

You need to tell us what exactly is being tracked, what's the range, how
fast is it moving, etc.

There just isn't enough detail in what you are giving us to really know
what to say. Sounds like you're doing something with automated mfg, but
what?

-- 
pete@petertodd.ca http://www.petertodd.ca
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