From: John Seney
Subject: Re: How to build your own Oscilloscope?
User-Agent: MT-NewsWatcher/3.0 (PPC)
NNTP-Posting-Date: Sun, 22 Sep 2002 09:33:46 GMT
Organization: AT&T Broadband
Date: Sun, 22 Sep 2002 09:33:46 GMT
In article <0vcj9.172680$Jo.55878@rwcrnsc53>, Qwertys
> I Recently got myself an oscilloscope, not the best, a very old military
> but then after using it, i realized i need something more powerfull.
> so here comes the question, where can i find a good example or tutorial
> building your own HIGH end scope card or PC device.
> the only way i can think of building one is to get a high resolution ADC,
> provide a means of attatching it the computer, and write a program.
> but i know thats not enough.
> i know i am missing something, things that would effect accuracies and
> how could i go about doing this.
Start with a free one - where the ADC is already in your PC's sound card
and it comes with a nice Windows program for user interface and display.
As to building or buying a digital scope or data acquisition system that
is ADC based, its not easy to design and build from scratch something
that wouldn't be a lot less expensive if purchased outright. By the time
you get all parts and overcome the design and debug challenges, your
budget and your application's relevancy (due to time) usually lose.
The world is full of various ADC cards - PCI, PXI, VXI, etc.
Be sure you know the resolution (vertical in bits, horizontal in
time [samples]), trigger requirements, for the application(s) you are
Scope FAQ at http://www.qsl.net/wd1v