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View Full Version : Re: storing analog data - is this done anymore?



Tahir H. Chaudhry
07-27-2000, 02:20 AM
We recently supplied an 8 Channel system to Boston University for this
task. Essentially, we provide Raw EMG data via a PC Bus, which is them
converted to Digital using Computer Boards A/D & stored for later analysis.

Tahir H. Chaudhry
NeuroDyne Medical, Corp.
Cambridge, MA USA
www.neumed.com
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On Wednesday, July 26, 2000 11:07 AM, Marcus Besser
[SMTP:Marcus.Besser@MAIL.TJU.EDU] wrote:
> Biomch-l folks:
>
> A colleague has asked me a question, and I turn it over to you all, as
> collectors and storers of data:
>
> A while ago, if one wanted to collect 60 minutes of raw EMG, one used a
VCR -
> for instance, the Vetter system. I have never used such a system, and
don't
> know how they work. A few questions:
>
> 1) is the data stored in analog form, or is it digitized first, then
stored
> digitally?
>
> 2) are systems like this still in use for this application?
>
> 3) if this is now obsolete, how is this task done now (storing several
> channels of high frequency data (say 2000 Hz) for a long data collection
> period (say 60 minutes)?
>
> I will summarize responses, and I thank you in advance.
>
> Marc Besser
>
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> Marcus P. Besser, PhD []
> Assistant Director, Human Performance Laboratory _ /_/
> Associate Professor, Department of Physical Therapy / /
> Thomas Jefferson University / \
> Philadelphia, Pennsylvania, USA 19107-5233 /_ \_
> Phone:215-503-1645 Fax:215-503-3499 email: marcus.besser@mail.tju.edu
>
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