I have been using a PC-Oscilloscope
(http://www.vellemanusa.com/us/enu/product/view/?id=35137) along with a
Function Generator
(http://www.vellemanusa.com/us/enu/product/view/?id=350615) for several
years.  These particular units can be chained together (it uses a printer
port) to work with the same PC.

They were made from kits, which seemed easy, but I made an error (bent an IC
package pin) and could not correct it.  The unit was set right without
charge and even came with a polite letter from the technician telling me
what had gone wrong.

Velleman make hundreds of products, and I was really impressed with the
'scope and generator.  But I'm not really the one to do an evaluation.  I
have never owned an oscilloscope before due to the cost, so I am easily
impressed.  I purchased these intending to automate the process control of a
waste water system.  I gathered a lot of information about PIC processors,
but the project was not completed.  I had not found time to work on it
before a staffing change made it less necessary.

I promise you, I never came close a full test of these instruments.  Putting
these in my hands is like taking a Stradivarius to a hoedown.  Still, even I
was able to figure out what I needed to know with such generous facilities.
With two channels to compare and the ability to control the input and record
the results, it didn't take a rocket scientist to do a little rocket
science.  If I had only had instruments like these when I was ambitions and
my brain soaked up everything new like a sponge.

Now, if I can just find a time machine in one of these catalogues.

Grant


The Rotary Engine NewsLetter. Powered by Linux.
ACRE NL web site. http://www.rotaryeng.net
Copyright 1998-2006 All world wide rights reserved.