[Sussex] data aquisition

[Brendan Whelan]

Rob,

Some further thoughts. By training I am a Chartered Mechanical Engineer and,
whilst well out of date on current engine technology, I do have a basic
understanding of how engines work and the sort of data that you may want to
collect. The key question is how fast do you need to measure the
information. For example, your may just want to measure steady state
conditions i.e. when an engine is under constant load/speed conditions. Or
are you trying to measure conditions during transients e.g. a steady speed
increase. At the extreme you may want to measure pressure/temperature
changes during combustion - but hopefully not. The speed of gathering needed
obviously will determine the type of IO card which you need and hence how
much you have to pay.

Hope that this helps and please ask if you want more thoughts, Brendan
Whelan
----- Original Message -----
From: "John Gregory" <john_gregory at onetel.com>
To: "LUG email list for the Sussex Counties" <sussex at mailman.lug.org.uk>
Sent: Thursday, March 24, 2005 9:54 AM
Subject: Re: [Sussex] data aquisition


> Rob
> I can add my recommendation of Amplicon, having just used them when we
> had an emergency with a failed I/O board. Their delivery of a
> replacement was speedy.
>
> John Gregory
>
> Brendan Whelan wrote:
>
> > Rob,
> >
> > I had a look around a few weeks ago and found that
> > quasarelectronics.com had a good range of IO cards, at low prices, -
> > some with Linux drivers. A  member of the Brighton Linux Group
> > recommended Amplicon, a local company, and someone else
> > suggested http://www.comedi.org/ for the driver.
> >
> > Hope this gets you started, Brendan
> >
> >     ----- Original Message -----
> >     *From:* Rob Boss <mailto:mapseast at tiscali.co.uk>
> >     *To:* LUG email list for the Sussex Counties
> >     <mailto:sussex at mailman.lug.org.uk>
> >     *Sent:* Tuesday, March 22, 2005 9:23 PM
> >     *Subject:* [Sussex] data aquisition
> >
> >     Does anybody have any data aquisition experience with linux
> >     ?-software/plus ,suitable isolated hardware  for  temps/
> >     pressures/freq/rpm,ect also some control outputs electric motors -
> >     (as much as 6 amps possibly)+ switching of relays  realtime
> >     rear-end seems to be correct ...for- engine monitoring + control
> >     . I have done a small amount of  research but would love to hear
> >     from someone with experience or knowlege or a prod in the right
> >     direction
> >     THANKS
> >     Rob Boss
> >
>
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