http://www.ieee-pses.org/symposium http://www.emc2004.org/
--------------------------------------------------
Pacemakers are an issue, that's for sure. I'm not so sure though about the
"if you can't see it" theory, perhaps you were joking.
The tazer sounds like a good idea but then how close would they have to be to
make contact?
The last idea sounds good, ionizing the air and using the ground to arc would
cause the world's largest transient!
I'm sure though that this company and designer have safety considerations in
place, otherwise it would never be allowed to be used.
I have read of similar weapons used in military applications, although in that
case safety of surrounding human beings is less of a consideration.
Rob Kado
EMC Engineer
VWS - Auburn Hills, USA
Tel: 248-340-3828 / Fax: 248-340-3316
Internal Location 3M2
[email protected]
Sent by: [email protected]
07/13/2004 01:11 PM
To: <[email protected]>
cc: <[email protected]>, <[email protected]>,
<[email protected]>
Subject: RE: EM Disruption of Automobile Electronics
http://www.ieee-pses.org/symposium
http://www.emc2004.org/
My coworker wonders what it would do to pedestrians with pacemakers. As
for hurting the standard issue person? If you can't see it, it can't
hurt you, and it? How about a big tazer to zap the car? Or, ionize the
air with a laser and then transfer charge to the car though that. The
car will arc over to ground, making it's own EMC pulse and possibly
stopping it.
Dave Cuthbert
From: [email protected] [mailto:[email protected]]
Sent: Tuesday, July 13, 2004 10:44 AM
To: drcuthbert
Cc: [email protected]; [email protected];
[email protected]
Subject: RE: EM Disruption of Automobile Electronics
I agree with Dave's analysis below, considering the fact that the US
Automotive Specs call for Immunity testing in the 100-200 V/M range (one
small range in the 1-1.5GHz requires 600V/M) at 1 meter and failures
occur
daily I wouldn't doubt that a powerful device like this could stop a
vehicle.
Amazing how much power EMC can really have over the world today.
My question though is what if other vehicles are in the path of the EM
Field? I wonder how much of a clear shot is required for accuracy?
Also, the effects on the vehicle firing the EM Field and all the people
who
may also be induced in it? Any studies done to prove or disprove that
the
EM Field is harmful? In my experience and study a field with as little
power as 100V/M can have serious affects on human beings.....
Just my two cents.
Rob Kado
EMC Engineer
VWS - Auburn Hills, USA
Tel: 248-340-3828 / Fax: 248-340-3316
Internal Location 3M2
[email protected]
Sent by: To:
<[email protected]>, <[email protected]>
[email protected] cc:
ee.org Subject: RE:
EM Disruption of Automobile Electronics
07/13/2004 12:08 PM
http://www.ieee-pses.org/symposium http://www.emc2004.org/
Kim,
cool device. An EMP device like this can generate a 1-2 gW pulse, or so
I
have read. Given 50 kV across a dipole you will get 35 megawatts.
Directed
with a gain of 10 dBi this will give 2000 V/m at 50 meters. Is this
enough
to stop automobile electronics?
Dave Cuthbert
Micron Technology
From: [email protected]
[mailto:[email protected]] On Behalf Of James Youngman
Sent: Tuesday, July 13, 2004 10:03 AM
To: [email protected]
Subject: EM Disruption of Automobile Electronics
http://www.ieee-pses.org/symposium http://www.emc2004.org/
--------------------------------------------------
Most Esteemed EMC Gurus,
First post from a long-time suscriber. Subject is automotive EMC and
the
intentional disruption of microprocessors in automobiles to disable
vehicles, presumably during chases. In an article in the Guardian (UK
newspaper), Dr. Giri describes his newly invented device; the article is
at
http://www.guardian.co.uk/crime/article/0,2763,1259138,00.html This was
also reported on National Public Radio (
http://www.npr.org/features/feature.php?wfId=3327049) (watch for split
URLs).
Knowing the lengths that the automotive EMC community goes to to prevent
this exact effect, and having been involved in similar "pursuits" of my
own, I have my doubts, but am interested in the opinions of others. Has
Dr. Giri found a back-door path into automotive microprocessors?
Thanks,
Jim
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