My belief is that good mechanics have good tools. Being able to see
waveforms for the various e/m components and sensors and being able to
analyze those waveforms will make a better mechanic than those without.
The problem for DIYers is cost.
Regarding a 'PC Lab Scope' for automotive applications, Autotap is
using a USB 2.0 port for their OSB-II Scanner, and it cost $200.--
That's in my price range, but for a PC lab-scope s/w and h/w using my
own P4 3.2ghz P4 17" ws laptop.
Some pros get to use a Fluke 193 for automotive testing and it cost ~
$2k and you can expect to pay more for options. It's a great tool to
see waveforms of various components, just what I want to see, but it's
too pricey for my DIY autofixer usage.
[http://us.fluke.com/VirtualDemos/main190.asp] video demo
Picoscope has a USB PC Scope and the price is getting lower @ ~ $400.00
http://www.pc-oscilloscopes.com/oscilloscope_selection_guide.htm
http://www.pc-oscilloscopes.com/42-oscilloscope.html
http://www.picotech.com/auto/automotive_oscilloscope.html -- $650.00
Automotive Scope
There must be some open source s/w that one can have but there will be
a price to pay for the h/w interface. I'm willing to pay that and it's
cost shouldn't be as high as some of the full blown production units.
Hopefully, after you peruse the links I show, you'll be able to
comment?
Anybody use a scope for automotive analysis?
Tutorials for waveforms? Free Sources?
If you want to download and read a 2003 Motor Mag article on Scopes and
other analysis tools, I placed it here:
http://www.sendspace.com/file/sluoa1
(limited time )
Ron
==========================
Regarding a 'Lab Scope' for automotive applications, Autotap is using a
USB 2.0 port for their OSB-II Scanner, and it cost $200.-- That's in my
price range, but for a PC lab-scope s/w and h/w using my own P4 3.3ghz
P4 17" ws laptop.
I'll start another thread for Auto Lab Scope for PC ...
Ron
==================================
Re: Re: Re: 94 Dak 5.2L Cat Converter Air Pump or Air Switch Valve?
From: jon@dakota-truck.net
Date: Fri Sep 28 2007 - 19:06:00 EDT
rws <rwsam2002@yahoo.com> wrote:
<snip>
> This is OT but does a lap top PC Oscilloscope converter or adapter
> exist? I was looking at a very nice SW/HW $200 OBDII Scanner from
> Autotap.com but want it to be useful for OBD 1 also. Btw, they have a
> great tutorial on Sensors.
Yes, they exist but from what I have seen, their sampling rate is
slow compared to an actual scope, so they are of limited use,
depending on what you are trying to measure. (Most of them that I
have seen plug into the paralell port or something along those lines,
which is why the sampling rate is rather slow, but if you were to get
one with its own dedicated PCI card that might be a different story.)
Keep in mind that I haven't looked into them over the past several
years, so things might be different now; I'm not really up on what
might be available. The last time I checked though, the PC scopes
seemed to be limited to somewhere around 25-40 Mhz.
--
-Jon-
____________________________________________________________________________________
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