hi guys:

was just wondering if anyone knows of any sources online for linear potentiometers?

did some googling but haven't had much success so far.

thanks

 

I'm sure most places that sell "data acquisition" equipment will have the sensors you're looking for, to compliment their datalogger product.

Such as: http://www.race-technology.com....html

From Pi Research -- http://www.piresearch.com/products.cfm

Ahhh ... found some actual parts (not cheap):
http://www.advantagemotorsports.com/Sensors.htm



Modified by zygspeed at 1:53 AM 7/5/2004

 

radio shack will have a linear pot. it will depend on how you will wire it to get it to work properly. i didnt get a chance to fully play around with the datalogger i had setup, but it seemed to work fine, until something happened with the wiring i didnt fix and havent bothered with since.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zygspeed &raquo;</TD></TR><TR><TD CLASS="quote">
Such as: http://www.race-technology.com....html
</TD></TR></TABLE>

I'm thinking about selling my DL90 setup - IM me for details if interested.

 

Good Deals, don't know if it's exactly what you're looking for though.

http://www.allelectronics.com/...store

The trick, I believe, is to get a regular pot and rig up a rack and pinion type machanism to move with the pedal or whatever you're tracking.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by eliktronik &raquo;</TD></TR><TR><TD CLASS="quote">The trick, I believe, is to get a regular pot and rig up a rack and pinion type machanism to move with the pedal or whatever you're tracking.</TD></TR></TABLE>

Yes, I believe this is what he was getting at. Because a linear pot itself is not an unusal item. I might consider looking into DIY robotics catalogs to source these.

-PHiZ

 

thank you all for your suggestions. helped tremendously thanks

 

http://www.omega.com

Edit: they may not have pots (I have been looking there for thermocouples), but their stuff is WAY better than the "automotive grade" crap, which apparently is just that...crap.

 

Take a "regular" reasonable precision pot, spring load it towards one stop, put a spool on the shaft with a known diameter, thread a thin aircraft type stainless steel cable of 1/16 inch diameter on the spool, and wala..... you have a "digital pot". These can often be installed more easily than a 4" linear pot.