Race Technology

I am thinking of using rotary pots for suspension measurement, I would like to know whether to use low resistance pot <4k bearing in mind it will only 'wipe' 80-90 deg of travel and this value will produce small changes in output or whether to go for high value pot >20k for greater voltage range but worse noise immunity.

Has anybody used these types of pots before for this application?

I'm doing this; I'm using Ford TPS sensors (eg, 5.0L V8 application) on my rear bellcranks. Since those are certainly less than 90 deg total movement, it works fine.

I did have one crap out and give untrustworthy readings, but the other was good; I've swapped out the former and will retry.

Haven't done the front as that end is a rocker suspension and harder to tie in to.

Apologies, I don't have the specs handy for the electrical side... but as I recall I have a resolution of about 1.1V/inch of shock travel... (with 5VDC sensor power supply)

HTH...

Hi HTH

Thanks again for your reply!

What exactly are you logging and at what frequency?

I am hoping to measure total travel and shock velocities at 1000hz.

Sorry... HTH = Hope That Helps!

I have logged rear bellcrank angle, so far only at default rate, looks to be 100Hz. I probably ought to bump that up once I figure out what I'm doing...

I have only the DL1 Mk2, so can't expect to get 1kHz rates, don't believe it goes that high...