The guy that designed it was nice enough to send me a copy of his
thesis. This, plus the posts from the Revistas makes it clear this is
way out of my league. So unless I am offered a Chair at MIT.......
Thanks anyway, and if anyone does anything on physiological measurement
and Rev, be sure to post the news!
Best Wishes,
David Glasgow
Carlton Glasgow Partnership
http://www.i-psych.co.uk
On 29 Aug 2006, at 6:00 pm, [EMAIL PROTECTED]
wrote:
Don't forget that a Bluetooth interface will also give the maximum
electrical isolation for the subject!!! (that would actually be my
FIRST concern!)
Optoisolators or transformers must be used (it's probably a law)
between a human subject and anything connected to mains-based devices.
That would rule out any DC-scaled sensors (most optoisolators are not
linear) unless they're wired into a data acquisition module at the
patient end. Old systems probably used PWM for output to get through
the isolation.
Isolation and safety should be foremost in medical equipment design.
(Duh)
Me? I don't want to write software that can blow up something, hurt
someone or get me sued! ( I guess that also means defense contracts?)
Good luck with your new project. Multiply your estimate of how much
time it will take by 10, unless you can get out-of-the-box products to
do what you want. Interfacing with the noisy, drifting, always
changing Analog world after being in a nice, save, digital-stepped
world can be a bit jarring.
I'd love to have a software-hardware Bluetooth breadboard kit, with
rev XCMDs for all platforms.
[I can dream - or make one!!]
sqb
Then you'll have to learn how to program the PIC microcontroller to
access the EDA device data and communicate with the main app. You
could probably get by without the Bluetooth if you could deal with the
limited portability, as that's what would eat up most of the battery
power, but portability seems one of the primary advantages of this
project. All in all, I think this isn't something I'd want to tackle
without having something like the resources of an MIT behind me - note
that this project was a Mechanical Engineering thesis.
--
-Mark Wieder
[EMAIL PROTECTED]
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