[sdiy] Recording voltage changes/fluctuations for post-analysis

[John Speth]

What's your sample rate?  Usually USB data acquisition boxes fit the bill.  They run anywhere from $50 to $200, approximately.

Your sample rate will have a big effect on your choice of HW/SW.  Some HW might have enough local memory so that it can run untethered at low sample rates.  Other HW might not have any local storage.  More local storage = more bux.  If you need to run tethered to continually offload data as it's generated, then you need to consider SW.  The reputable HW makers provide SW that allows you to export to popular formats.

JJS

-----Original Message-----
From: Synth-diy [mailto:synth-diy-bounces at synth-diy.org] On Behalf Of Justin Owen
Sent: Friday, February 03, 2017 8:31 AM
To: SDIY List <synth-diy at synth-diy.org>
Subject: [sdiy] Recording voltage changes/fluctuations for post-analysis

Hello,

If I wanted to set up the facility to record changes in voltage at a particular point in a circuit over a period of time - let's say up to 30 minutes - and then have it in a form that could be analysed - let's say in Excel (ideally) and/or some form of graphic (as a bonus)...

...what sort of kit would I be looking at?

Voltage changes probably no more than +/- 1V and for home/small business use rather than MilSpec/CERN/NASA - basically I'm looking for a step above sitting staring at a multimeter :)

Thanks!

/ Justin




_______________________________________________
Synth-diy mailing list
Synth-diy at synth-diy.org
http://synth-diy.org/mailman/listinfo/synth-diy