Re: [PSUBS-MAILIST] Rudder angle indicator

[Jon Wallace <jonw@psubs.org>]

Alan,

Very Cool!!

Jon


Alan James wrote:
> Hi all.
> My magnetopots ( magnetic potentiometers) arrived today & I was 
> wrapped with them.
> The rotary magnetopot was described by Digi-key as 46mm diameter.
> It was actually 65mm, which means it can fit larger shafts. The 
> internal hole
> which is 26mm can also be bored out to 35mm to fit a larger shaft.
> All I had to do to water / pressure proof them was to glue a flat 
> cover on the front.
> I did this because I noticed the front was slightly spongy over the 
> track area.
> The wires coming out of it also need potting.
> Photos & description are on the projects page.
> http://www.psubs.org/projects/1235435392/positionsensor/
> Jens, my motors will be rotating through 180 degrees so the 
> potentiometer will only be moved
> through 5k not 10k. My preferred range is from 7.25k to 2.25k but I 
> can do any 5k range from
> 10 to 0. How does that work out with your LED indicator? The linear 
> pot will be going through
> the full 10k resistance range so that should be OK with your currant 
> circuit.
> Can I have your schematic for that??? & what would be entailed for it 
> to work through the 5k
> range??
> Here's where you find these magnetic pots.
> http://search.digikey.com/scripts/DkSearch/dksus.dll?Cat=1967210&FV=fff4001e,fffc0389 
> <http://search.digikey.com/scripts/DkSearch/dksus.dll?Cat=1967210&FV=fff4001e,fffc0389>
> Regards Alan
>  
>  




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