RE: Video Cameras for EMC Test Monitoring
We use two dome cameras: one is mounted closer to the antenna on the left
side, the other is closer to the EUT on the right side. We set up the EUT
so the indicator is visible in x, y and z axis orientations. Fault
indication can be wired to external LEDs if necessary.
Of course, alarm systems provide fault indication by design. Consumer
product performance is more difficult to assess.
David
From: charles.mar...@ps.ge.com [mailto:charles.mar...@ps.ge.com]
Sent: Thursday, January 16, 2003 5:46 PM
To: emc-p...@majordomo.ieee.org
Subject: RE: Video Cameras for EMC Test Monitoring
How do you view the EUT at 180 degee orirentation if the camera is looking
at it backside?
Charlie Martin
From: djumbdenst...@tycoint.com [mailto:djumbdenst...@tycoint.com]
Sent: Thursday, January 16, 2003 1:23 PM
To: emc-p...@majordomo.ieee.org
Subject: RE: Video Cameras for EMC Test Monitoring
If the camera is in a can, mesh or otherwise, and the can is bonded to the
skin of the chamber, then is doesn't matter whether the control and power
are copper or fiber. In effect, the cables are outside of the chamber.
Special filters and connectors are not needed.
Our dome is mounted in the corner of the chamber, behind the antenna. We
have a clear view of the front of the EUT, and the orientation of the
antenna if we desire with the help of the pan/tilt/zoom capability of our
camera controller.
Best regards,
Don Umbdenstock
Sensormatic
--
From: david_ster...@ademco.com[SMTP:david_ster...@ademco.com]
Reply To: david_ster...@ademco.com
Sent: Thursday, January 16, 2003 9:28 AM
To: ju...@hursley-emc.co.uk; emc-p...@majordomo.ieee.org
Subject: RE: Video Cameras for EMC Test Monitoring
I use off-the-shelf dome surveillance cameras with an x-y-z+zoom
controller in the chamber at 20 V/m. Smoke covers are available for the
camera mechanism. Contact me off-line for model numbers. We turn the
cameras off during emissions measurements. Our antenna-EUT axis is
somewhat diagonal; we locate the domes toward the side, far off-axis.
Fiber
We send video as Ethernet packets over fiber, but converters are PC-based
and hence large metal objects - not good in an anechoic chamber. Video
over twisted pair may be cleaner than 75-ohm, but what about the
power-supply cable?
David
-Original Message-
From: jules [mailto:ju...@hursley-emc.co.uk]
Sent: Thursday, January 16, 2003 6:58 AM
To: emc-p...@majordomo.ieee.org
Subject: RE: Video Cameras for EMC Test Monitoring
You need to be carefull if you are running copper wires out to the
remote display as these will pick up the fields. Hursley EMC Services have
just developed a low cost camera for 10V/m, and we have built a converter
to run the image, pan/tilt and zoom etc out on two fibre optic leads. we
do plan to produce this, but it is unlikely to be ready before mid 2003.
rgds,
Jules Jones
-Original Message-
From: Ken Javor [mailto:ken.ja...@emccompliance.com]
Sent: 15 January 2003 19:29
To: Sandi McEnery; emc-p...@majordomo.ieee.org
Subject: Re: Video Cameras for EMC Test Monitoring
Just put an off-the-shelf unit from Best Buy or Circuit City
in a metal screen box, make sure the screen is very close to the lens,
that way it is totally out of focus and only causes a dimming of the
picture, not visible distortion.
--
From: Sandi McEnery smcen...@ustech-lab.com
To: emc-p...@majordomo.ieee.org
Subject: Video Cameras for EMC Test Monitoring
Date: Wed, Jan 15, 2003, 12:34 PM
We are in the process of purchasing video cameras
for monitoring EMC Immunity testing up to 10V/M. Pricing for cameras
designed to withstand 20V/M is way high
do any of you successfully use cameras that
are not as sturdy? Or ... does anyone know where we might purchase a used
system??
Sandi McEnery
US Technologies
770-740-0717(ph)
770-740-1508 (fax)
smcen...@ustech-lab.com
mailto:smcen...@ustech-lab.com
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.
Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/
To cancel your subscription, send mail to:
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For policy questions, send mail to:
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Jim Bacher: j.bac
RE: Video Cameras for EMC Test Monitoring
I use off-the-shelf dome surveillance cameras with an x-y-z+zoom controller in the chamber at 20 V/m. Smoke covers are available for the camera mechanism. Contact me off-line for model numbers. We turn the cameras off during emissions measurements. Our antenna-EUT axis is somewhat diagonal; we locate the domes toward the side, far off-axis. Fiber We send video as Ethernet packets over fiber, but converters are PC-based and hence large metal objects - not good in an anechoic chamber. Video over twisted pair may be cleaner than 75-ohm, but what about the power-supply cable? David From: jules [mailto:ju...@hursley-emc.co.uk] Sent: Thursday, January 16, 2003 6:58 AM To: emc-p...@majordomo.ieee.org Subject: RE: Video Cameras for EMC Test Monitoring You need to be carefull if you are running copper wires out to the remote display as these will pick up the fields. Hursley EMC Services have just developed a low cost camera for 10V/m, and we have built a converter to run the image, pan/tilt and zoom etc out on two fibre optic leads. we do plan to produce this, but it is unlikely to be ready before mid 2003. rgds, Jules Jones From: Ken Javor [mailto:ken.ja...@emccompliance.com] Sent: 15 January 2003 19:29 To: Sandi McEnery; emc-p...@majordomo.ieee.org Subject: Re: Video Cameras for EMC Test Monitoring Just put an off-the-shelf unit from Best Buy or Circuit City in a metal screen box, make sure the screen is very close to the lens, that way it is totally out of focus and only causes a dimming of the picture, not visible distortion. From: Sandi McEnery smcen...@ustech-lab.com To: emc-p...@majordomo.ieee.org Subject: Video Cameras for EMC Test Monitoring List-Post: emc-pstc@listserv.ieee.org List-Post: emc-pstc@listserv.ieee.org List-Post: emc-pstc@listserv.ieee.org List-Post: emc-pstc@listserv.ieee.org Date: Wed, Jan 15, 2003, 12:34 PM We are in the process of purchasing video cameras for monitoring EMC Immunity testing up to 10V/M. Pricing for cameras designed to withstand 20V/M is way high do any of you successfully use cameras that are not as sturdy? Or ... does anyone know where we might purchase a used system?? Sandi McEnery US Technologies 770-740-0717(ph) 770-740-1508 (fax) smcen...@ustech-lab.com mailto:smcen...@ustech-lab.com
RE: Video Cameras for EMC Test Monitoring
How do you view the EUT at 180 degee orirentation if the camera is looking
at it backside?
Charlie Martin
From: djumbdenst...@tycoint.com [mailto:djumbdenst...@tycoint.com]
Sent: Thursday, January 16, 2003 1:23 PM
To: emc-p...@majordomo.ieee.org
Subject: RE: Video Cameras for EMC Test Monitoring
If the camera is in a can, mesh or otherwise, and the can is bonded to the
skin of the chamber, then is doesn't matter whether the control and power
are copper or fiber. In effect, the cables are outside of the chamber.
Special filters and connectors are not needed.
Our dome is mounted in the corner of the chamber, behind the antenna. We
have a clear view of the front of the EUT, and the orientation of the
antenna if we desire with the help of the pan/tilt/zoom capability of our
camera controller.
Best regards,
Don Umbdenstock
Sensormatic
--
From: david_ster...@ademco.com[SMTP:david_ster...@ademco.com]
Reply To: david_ster...@ademco.com
Sent: Thursday, January 16, 2003 9:28 AM
To: ju...@hursley-emc.co.uk; emc-p...@majordomo.ieee.org
Subject: RE: Video Cameras for EMC Test Monitoring
I use off-the-shelf dome surveillance cameras with an x-y-z+zoom
controller in the chamber at 20 V/m. Smoke covers are available for the
camera mechanism. Contact me off-line for model numbers. We turn the
cameras off during emissions measurements. Our antenna-EUT axis is
somewhat diagonal; we locate the domes toward the side, far off-axis.
Fiber
We send video as Ethernet packets over fiber, but converters are PC-based
and hence large metal objects - not good in an anechoic chamber. Video
over twisted pair may be cleaner than 75-ohm, but what about the
power-supply cable?
David
-Original Message-
From: jules [mailto:ju...@hursley-emc.co.uk]
Sent: Thursday, January 16, 2003 6:58 AM
To: emc-p...@majordomo.ieee.org
Subject: RE: Video Cameras for EMC Test Monitoring
You need to be carefull if you are running copper wires out to the
remote display as these will pick up the fields. Hursley EMC Services have
just developed a low cost camera for 10V/m, and we have built a converter
to run the image, pan/tilt and zoom etc out on two fibre optic leads. we
do plan to produce this, but it is unlikely to be ready before mid 2003.
rgds,
Jules Jones
-Original Message-
From: Ken Javor [mailto:ken.ja...@emccompliance.com]
Sent: 15 January 2003 19:29
To: Sandi McEnery; emc-p...@majordomo.ieee.org
Subject: Re: Video Cameras for EMC Test Monitoring
Just put an off-the-shelf unit from Best Buy or Circuit City
in a metal screen box, make sure the screen is very close to the lens,
that way it is totally out of focus and only causes a dimming of the
picture, not visible distortion.
--
From: Sandi McEnery smcen...@ustech-lab.com
To: emc-p...@majordomo.ieee.org
Subject: Video Cameras for EMC Test Monitoring
Date: Wed, Jan 15, 2003, 12:34 PM
We are in the process of purchasing video cameras
for monitoring EMC Immunity testing up to 10V/M. Pricing for cameras
designed to withstand 20V/M is way high
do any of you successfully use cameras that
are not as sturdy? Or ... does anyone know where we might purchase a used
system??
Sandi McEnery
US Technologies
770-740-0717(ph)
770-740-1508 (fax)
smcen...@ustech-lab.com
mailto:smcen...@ustech-lab.com
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.
Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/
To cancel your subscription, send mail to:
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unsubscribe emc-pstc
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Ron Pickard: emc-p...@hypercom.com
Dave Heald: davehe...@attbi.com
For policy questions, send mail to:
Richard Nute: ri...@ieee.org
Jim Bacher: j.bac...@ieee.org
All emc-pstc postings are archived and searchable on the web at:
http://ieeepstc.mindcruiser.com/
Click on browse and then emc-pstc mailing list
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Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/
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RE: Video Cameras for EMC Test Monitoring
If the camera is in a can, mesh or otherwise, and the can is bonded to the
skin of the chamber, then is doesn't matter whether the control and power
are copper or fiber. In effect, the cables are outside of the chamber.
Special filters and connectors are not needed.
Our dome is mounted in the corner of the chamber, behind the antenna. We
have a clear view of the front of the EUT, and the orientation of the
antenna if we desire with the help of the pan/tilt/zoom capability of our
camera controller.
Best regards,
Don Umbdenstock
Sensormatic
--
From: david_ster...@ademco.com[SMTP:david_ster...@ademco.com]
Reply To: david_ster...@ademco.com
Sent: Thursday, January 16, 2003 9:28 AM
To: ju...@hursley-emc.co.uk; emc-p...@majordomo.ieee.org
Subject: RE: Video Cameras for EMC Test Monitoring
I use off-the-shelf dome surveillance cameras with an x-y-z+zoom
controller in the chamber at 20 V/m. Smoke covers are available for the
camera mechanism. Contact me off-line for model numbers. We turn the
cameras off during emissions measurements. Our antenna-EUT axis is
somewhat diagonal; we locate the domes toward the side, far off-axis.
Fiber
We send video as Ethernet packets over fiber, but converters are PC-based
and hence large metal objects - not good in an anechoic chamber. Video
over twisted pair may be cleaner than 75-ohm, but what about the
power-supply cable?
David
-Original Message-
From: jules [mailto:ju...@hursley-emc.co.uk]
Sent: Thursday, January 16, 2003 6:58 AM
To: emc-p...@majordomo.ieee.org
Subject: RE: Video Cameras for EMC Test Monitoring
You need to be carefull if you are running copper wires out to the
remote display as these will pick up the fields. Hursley EMC Services have
just developed a low cost camera for 10V/m, and we have built a converter
to run the image, pan/tilt and zoom etc out on two fibre optic leads. we
do plan to produce this, but it is unlikely to be ready before mid 2003.
rgds,
Jules Jones
-Original Message-
From: Ken Javor [mailto:ken.ja...@emccompliance.com]
Sent: 15 January 2003 19:29
To: Sandi McEnery; emc-p...@majordomo.ieee.org
Subject: Re: Video Cameras for EMC Test Monitoring
Just put an off-the-shelf unit from Best Buy or Circuit City
in a metal screen box, make sure the screen is very close to the lens,
that way it is totally out of focus and only causes a dimming of the
picture, not visible distortion.
--
From: Sandi McEnery smcen...@ustech-lab.com
To: emc-p...@majordomo.ieee.org
Subject: Video Cameras for EMC Test Monitoring
Date: Wed, Jan 15, 2003, 12:34 PM
We are in the process of purchasing video cameras
for monitoring EMC Immunity testing up to 10V/M. Pricing for cameras
designed to withstand 20V/M is way high
do any of you successfully use cameras that
are not as sturdy? Or ... does anyone know where we might purchase a used
system??
Sandi McEnery
US Technologies
770-740-0717(ph)
770-740-1508 (fax)
smcen...@ustech-lab.com
mailto:smcen...@ustech-lab.com
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.
Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/
To cancel your subscription, send mail to:
majord...@ieee.org
with the single line:
unsubscribe emc-pstc
For help, send mail to the list administrators:
Ron Pickard: emc-p...@hypercom.com
Dave Heald: davehe...@attbi.com
For policy questions, send mail to:
Richard Nute: ri...@ieee.org
Jim Bacher: j.bac...@ieee.org
All emc-pstc postings are archived and searchable on the web at:
http://ieeepstc.mindcruiser.com/
Click on browse and then emc-pstc mailing list
RE: Video Cameras for EMC Test Monitoring
-Original Message- From: John Woodgate [mailto:j...@jmwa.demon.co.uk] Sent: Thursday, January 16, 2003 1:28 AM To: emc-p...@majordomo.ieee.org Subject: Video Cameras for EMC Test Monitoring I read in !emc-pstc that Price, Ed ed.pr...@cubic.com wrote (in b78135310217d511907c0090273f5190d0b...@curly.ds.cubic.com) about 'Video Cameras for EMC Test Monitoring' on Wed, 15 Jan 2003: I wish there was some remote way to suppress the IR illuminators. Can't you just put duct tape over them, if you are not expecting to use them? Already tried that, John. The problem is that the Ramsey camera is about 1.5 diameter, and has a glass window over the end of the aluminum tube. There are 12 IR LED's distributed around the camera lens. I tried several masks, which effectively block the IR from projecting into the room. Unfortunately, the masks also reflect some IR back into the camera, causing the camera's AGC (or whatever) to darken the scene. Thus far, masks hurt more than help. Further play is indicated! Ed Ed Price ed.pr...@cubic.com Electromagnetic Compatibility Lab Cubic Defense Systems San Diego, CA USA 858-505-2780 (Voice) 858-505-1583 (Fax) Military Avionics EMC Is Our Specialty Shake-Bake-Shock - Metrology - Reliability Analysis This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
RE: Video Cameras for EMC Test Monitoring
Hans, off-the-shelf optical fiber converters are available for that purpose. They are very small and look like an in-line filter. Richard Woods Sensormatic Electronics Tyco International From: Hans Mellberg [mailto:emcconsult...@yahoo.com] Sent: Wednesday, January 15, 2003 6:22 PM To: emc-p...@majordomo.ieee.org Subject: RE: Video Cameras for EMC Test Monitoring While on the topic of cameras, does anyone make a fiberoptic version of a surveilance camera? --- richwo...@tycoint.com wrote: We enclosed our camera in screen mesh, but we had to verify that the enclosure did not affect the calibration of the room. We test up to 10V/m with no problems. Richard Woods Sensormatic Electronics Tyco International -Original Message- From: Sandi McEnery [mailto:smcen...@ustech-lab.com] Sent: Wednesday, January 15, 2003 1:35 PM To: emc-p...@majordomo.ieee.org Subject: Video Cameras for EMC Test Monitoring We are in the process of purchasing video cameras for monitoring EMC Immunity testing up to 10V/M. Pricing for cameras designed to withstand 20V/M is way high do any of you successfully use cameras that are not as sturdy? Or ... does anyone know where we might purchase a used system?? Sandi McEnery US Technologies 770-740-0717(ph) 770-740-1508 (fax) smcen...@ustech-lab.com mailto:smcen...@ustech-lab.com = Best Regards Hans T. Mellberg, Consultant Regulatory, High Speed, EMC and Power Design Services By the Pacific Coast next to Silicon Valley, Santa Cruz, CA, USA office:831-454-9450, cell:408-507-9694, fax:831-454-0755 BSEE, NARTE Certified Engineer, IEEE, AIAA, dB 2004 IEEE EMC Symposium Program Chair, IEEE EMC SCV ADCOM __ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
RE: Video Cameras for EMC Test Monitoring
You need to be carefull if you are running copper wires out to the remote display as these will pick up the fields. Hursley EMC Services have just developed a low cost camera for 10V/m, and we have built a converter to run the image, pan/tilt and zoom etc out on two fibre optic leads. we do plan to produce this, but it is unlikely to be ready before mid 2003. rgds, Jules Jones From: Ken Javor [mailto:ken.ja...@emccompliance.com] Sent: 15 January 2003 19:29 To: Sandi McEnery; emc-p...@majordomo.ieee.org Subject: Re: Video Cameras for EMC Test Monitoring Just put an off-the-shelf unit from Best Buy or Circuit City in a metal screen box, make sure the screen is very close to the lens, that way it is totally out of focus and only causes a dimming of the picture, not visible distortion. From: Sandi McEnery smcen...@ustech-lab.com To: emc-p...@majordomo.ieee.org Subject: Video Cameras for EMC Test Monitoring List-Post: emc-pstc@listserv.ieee.org List-Post: emc-pstc@listserv.ieee.org List-Post: emc-pstc@listserv.ieee.org List-Post: emc-pstc@listserv.ieee.org Date: Wed, Jan 15, 2003, 12:34 PM We are in the process of purchasing video cameras for monitoring EMC Immunity testing up to 10V/M. Pricing for cameras designed to withstand 20V/M is way high do any of you successfully use cameras that are not as sturdy? Or ... does anyone know where we might purchase a used system?? Sandi McEnery US Technologies 770-740-0717(ph) 770-740-1508 (fax) smcen...@ustech-lab.com mailto:smcen...@ustech-lab.com
Video Cameras for EMC Test Monitoring
I read in !emc-pstc that Price, Ed ed.pr...@cubic.com wrote (in b78135310217d511907c0090273f5190d0b...@curly.ds.cubic.com) about 'Video Cameras for EMC Test Monitoring' on Wed, 15 Jan 2003: I wish there was some remote way to suppress the IR illuminators. Can't you just put duct tape over them, if you are not expecting to use them? -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Interested in professional sound reinforcement and distribution? Then go to http://www.isce.org.uk PLEASE do NOT copy news posts to me by E-MAIL! This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
RE: Video Cameras for EMC Test Monitoring
-Original Message- From: Gary McInturff [mailto:gary.mcintu...@worldwidepackets.com] Sent: Wednesday, January 15, 2003 4:27 PM To: djumbdenst...@tycoint.com; emc-p...@majordomo.ieee.org; smcen...@ustech-lab.com Subject: RE: Video Cameras for EMC Test Monitoring Hire one of the media's courtroom sketch artists - they aren't really doing anything useful anyway or promote one of your lab techs to sketch artist - and send him in. (You might want to have a list of lucky promotee's in place after the first one fails) Gary I guess that I have developed such a fearsome reputation at my plant that nobody even wants to come into my lab area, let alone go inside the chamber. About the only people who you can get to sit in there during a mild RS test are program managers, who figure they can avoid a direct charge for a technician. Ed Ed Price ed.pr...@cubic.com Electromagnetic Compatibility Lab Cubic Defense Systems San Diego, CA USA 858-505-2780 (Voice) 858-505-1583 (Fax) Military Avionics EMC Is Our Specialty Shake-Bake-Shock - Metrology - Reliability Analysis This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
RE: Video Cameras for EMC Test Monitoring
From: Sandi McEnery [mailto:smcen...@ustech-lab.com] Sent: Wednesday, January 15, 2003 10:35 AM To: emc-p...@majordomo.ieee.org Subject: Video Cameras for EMC Test Monitoring We are in the process of purchasing video cameras for monitoring EMC Immunity testing up to 10V/M. Pricing for cameras designed to withstand 20V/M is way high do any of you successfully use cameras that are not as sturdy? Or ... does anyone know where we might purchase a used system?? Sandi McEnery US Technologies 770-740-0717(ph) 770-740-1508 (fax) smcen...@ustech-lab.com I can suggest two paths. I have been using an aged Sony Hi-8 Handycam. This yields an NTSC color video output and an audio output. It has autofocus. Nothing special about the camera (it was passed along to me from our corporate PR guys when the built-in tape deck died). By itself, this camera would never withstand the fields I can develop (I do the 200 V/M, 10 kHz to 18 GHz military), so shielding was needed. So, here's Path 1. I bought a 1-gallon size paint can (metal, of course). I mounted a Corcom powerline filter (with built-in male powerline connector) into the bottom of the paint can. I also mounted two BNC feed-through connectors (one each for video audio). Connect the camera power pack, and connect the camera outputs to the BNC connectors. I then stuffed the camera power pack and the camera into the can using stiff foam rubber. After checking the camera positioning, I cut a 1 diameter hole in the paint-can cover. Press the cover in place, and you are finished. I didn't use any screen across the open hole in the cover. I also didn't bother with any mounting hardware for the can (I use traditional military duct tape for almost everything). The paint can makes an excellent RF shield, since all the seams are soldered. The cover, when pressed in place, also yields a perfect RF seal. (Caution; fancy paint cans come with an internal plastic film to prevent corrosion. If you get this kind, you will have to use a wire wheel and buff off the plastic around the cover seal.) My gamble about no lens-hole shielding was successful, but you could always solder a patch of copper screen onto the rear surface of the cover hole. Also, the audio is transmitted through the can walls pretty well. (Audio is really great, as it lets you verify continued operation of the UUT, and allows correlation of observations with UUT operational events. And it gives you a one-way intercom.) This paint-can technique is great for shielding other support devices during a test; and the cans are available in quart and pint sizes also. Finally, the shiny paint-can makes a great statement about the frugality of your lab. But, even Sony Handy-cams must die sometime, so now Path 2. After 6 years of use, it became intermittent enough to force me to get a quick replacement. I bought a color CCD video camera, color LCD, power pack and a 65' camera cable from Ramsey Electronics. http://www.ramseyelectronics.com/ You can download their video products sub-catalog at: http://www.ramseykits.com/catalog/pdf/2003-103.pdf I bought their CCD322 camera package for $430. At the worst, I figured I could always use the paint-can shielding technique. But the CCD322 camera looked promising, as the case was made from a tubular section of aluminum. Aside from the open lens end, there is only one circumferential seam, and that could always be covered with conductive aluminum tape. All signals and power flow through a single 65' long control cable (about a 1/4 diameter). The camera runs in color mode when there's enough ambient light, and switches to IR with its own LED illuminators as ambient light decreases. Picture quality on the associated monitor is fine, although the viewing angle restriction of the LCD (and a really cheap bracket/stand) are small drawbacks. I set the camera on a cheap plastic tripod (the camera has a cheap little mounting bracket), and ran the cable through a hole in my penetration port. I didn't do any shielding to the camera housing, and I didn't even try to ground the cable at the port. (I did route the cable as close to the floor and walls as possible, and I minimized the length of cable in the enclosure.) With this off-the-shelf configuration, I was very pleased to find that I could do 50 V/M exposure without any camera problems. In the couple of months that I have been using this system, I have done exposures up to 150 V/M at some frequencies. I noticed that the camera began to exhibit some sync problems at 150 V/M in the 600 MHz region. So, it looks like I will have to do a few things, like tape the camera body seam and ground the cable at the penetration port (and maybe examine the cable-to-camera-body ground technique), if I want to get a 200 V/M capability. The camera does a great job at high light levels, but if it decides to turn on its IR illuminators, you get a serious reflection problem. I suppose the IR LED's are only On or Off, so
RE: Video Cameras for EMC Test Monitoring
Hire one of the media's courtroom sketch artists - they aren't really doing anything useful anyway or promote one of your lab techs to sketch artist - and send him in. (You might want to have a list of lucky promotee's in place after the first one fails) Gary This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
RE: Video Cameras for EMC Test Monitoring
While on the topic of cameras, does anyone make a fiberoptic version of a surveilance camera? --- richwo...@tycoint.com wrote: We enclosed our camera in screen mesh, but we had to verify that the enclosure did not affect the calibration of the room. We test up to 10V/m with no problems. Richard Woods Sensormatic Electronics Tyco International -Original Message- From: Sandi McEnery [mailto:smcen...@ustech-lab.com] Sent: Wednesday, January 15, 2003 1:35 PM To: emc-p...@majordomo.ieee.org Subject: Video Cameras for EMC Test Monitoring We are in the process of purchasing video cameras for monitoring EMC Immunity testing up to 10V/M. Pricing for cameras designed to withstand 20V/M is way high do any of you successfully use cameras that are not as sturdy? Or ... does anyone know where we might purchase a used system?? Sandi McEnery US Technologies 770-740-0717(ph) 770-740-1508 (fax) smcen...@ustech-lab.com mailto:smcen...@ustech-lab.com = Best Regards Hans T. Mellberg, Consultant Regulatory, High Speed, EMC and Power Design Services By the Pacific Coast next to Silicon Valley, Santa Cruz, CA, USA office:831-454-9450, cell:408-507-9694, fax:831-454-0755 BSEE, NARTE Certified Engineer, IEEE, AIAA, dB 2004 IEEE EMC Symposium Program Chair, IEEE EMC SCV ADCOM __ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
RE: Video Cameras for EMC Test Monitoring
Hi Sandi, We use a regular Panasonic VHS-C palmcorder @ 10V/m and have no problems with it, besides some noise at certain frequencies mostly with AM. The auto focus screws up on occasion, but with 20X optical zoom the picture is great and does the job for ~$300.00. Charlie Martin EMC Lab Supervisor GE Panametrics From: Sandi McEnery [mailto:smcen...@ustech-lab.com] Sent: Wednesday, January 15, 2003 1:35 PM To: emc-p...@majordomo.ieee.org Subject: Video Cameras for EMC Test Monitoring We are in the process of purchasing video cameras for monitoring EMC Immunity testing up to 10V/M. Pricing for cameras designed to withstand 20V/M is way high do any of you successfully use cameras that are not as sturdy? Or ... does anyone know where we might purchase a used system?? Sandi McEnery US Technologies 770-740-0717(ph) 770-740-1508 (fax) smcen...@ustech-lab.com
RE: Video Cameras for EMC Test Monitoring
Might I suggest putting a pin hole (minature) video camera in a metal box. I’ve seen it done successfully at an EMC lab and used for observation during immunity. -George Stults From: Sandi McEnery [mailto:smcen...@ustech-lab.com] Sent: Wednesday, January 15, 2003 10:35 AM To: emc-p...@majordomo.ieee.org Subject: Video Cameras for EMC Test Monitoring We are in the process of purchasing video cameras for monitoring EMC Immunity testing up to 10V/M. Pricing for cameras designed to withstand 20V/M is way high do any of you successfully use cameras that are not as sturdy? Or ... does anyone know where we might purchase a used system?? Sandi McEnery US Technologies 770-740-0717(ph) 770-740-1508 (fax) smcen...@ustech-lab.com
RE: Video Cameras for EMC Test Monitoring
Sandi, Another option for you if you have the capability is to buy a commercial video camera and see if you can modify the system to improve the immunity level of the camera system. You could have some immunity improvement if you were able to shield the cable and somehow terminate the shield effectively. It might depend on the type of connector the system has. It might require you to modify to a different connector so you could have a backshell. And you might also have to put the camera portion in a shielded enclosure. Depending on how much improvement you need and what your modification capability is it might be cost effective. Sandy Mazzola -Original Message- From: Sandi McEnery [mailto:smcen...@ustech-lab.com] Sent: Wednesday, January 15, 2003 1:35 PM To: emc-p...@majordomo.ieee.org Subject: Video Cameras for EMC Test Monitoring We are in the process of purchasing video cameras for monitoring EMC Immunity testing up to 10V/M. Pricing for cameras designed to withstand 20V/M is way high do any of you successfully use cameras that are not as sturdy? Or ... does anyone know where we might purchase a used system?? Sandi McEnery US Technologies 770-740-0717(ph) 770-740-1508 (fax) smcen...@ustech-lab.com mailto:smcen...@ustech-lab.com This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
Re: Video Cameras for EMC Test Monitoring
In a message dated 1/15/03 12:30:26 PM Central Standard Time, smcen...@ustech-lab.com writes: We are in the process of purchasing video cameras for monitoring EMC Immunity testing up to 10V/M. Pricing for cameras designed to withstand 20V/M is way high do any of you successfully use cameras that are not as sturdy? Or ... does anyone know where we might purchase a used system?? HI, We offer cameras with both cable and optical interfaces specifically for testing from 3 v/m to over 200 v/m. They are very cost effective. Plase contact us off-line for more info Cheers, Derek N. Walton. L F Research
RE: Video Cameras for EMC Test Monitoring
Hello Sandi, Sensormatic makes various pan/tilt/zoom cameras (commonly referred to as a dome) for various CCTV applications. I used one of our dome products and constructed a brass screen cylinder around the dome. Fastening the screen to the skin of the shield was simple. We test to 10 V/m. The test level does not cause a problem to show up on our monitor and the dome does not disturb the uniform field. The screened dome was installed at the antenna end of our 3 meter chamber. As the dome is focused on the EUT at the other end of the chamber, the screen does not appear on the monitor. The 26x zoom capability of the camera gives you the ability to monitor a single LED if desired. This arrangement priced out at retail was about 1/5 the cost of cameras that we found at the time we were installing our chamber. If you would like to discuss it further, feel free to contact me. Don Umbdenstock Sensormatic Electronics Corp -- From: Sandi McEnery[SMTP:smcen...@ustech-lab.com] Reply To: Sandi McEnery Sent: Wednesday, January 15, 2003 1:34 PM To: emc-p...@majordomo.ieee.org Subject: Video Cameras for EMC Test Monitoring We are in the process of purchasing video cameras for monitoring EMC Immunity testing up to 10V/M. Pricing for cameras designed to withstand 20V/M is way high do any of you successfully use cameras that are not as sturdy? Or ... does anyone know where we might purchase a used system?? Sandi McEnery US Technologies 770-740-0717(ph) 770-740-1508 (fax) smcen...@ustech-lab.com This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
RE: Video Cameras for EMC Test Monitoring
We enclosed our camera in screen mesh, but we had to verify that the enclosure did not affect the calibration of the room. We test up to 10V/m with no problems. Richard Woods Sensormatic Electronics Tyco International From: Sandi McEnery [mailto:smcen...@ustech-lab.com] Sent: Wednesday, January 15, 2003 1:35 PM To: emc-p...@majordomo.ieee.org Subject: Video Cameras for EMC Test Monitoring We are in the process of purchasing video cameras for monitoring EMC Immunity testing up to 10V/M. Pricing for cameras designed to withstand 20V/M is way high do any of you successfully use cameras that are not as sturdy? Or ... does anyone know where we might purchase a used system?? Sandi McEnery US Technologies 770-740-0717(ph) 770-740-1508 (fax) smcen...@ustech-lab.com
Re: Video Cameras for EMC Test Monitoring
Just put an off-the-shelf unit from Best Buy or Circuit City in a metal screen box, make sure the screen is very close to the lens, that way it is totally out of focus and only causes a dimming of the picture, not visible distortion. From: Sandi McEnery smcen...@ustech-lab.com To: emc-p...@majordomo.ieee.org Subject: Video Cameras for EMC Test Monitoring List-Post: emc-pstc@listserv.ieee.org List-Post: emc-pstc@listserv.ieee.org List-Post: emc-pstc@listserv.ieee.org List-Post: emc-pstc@listserv.ieee.org Date: Wed, Jan 15, 2003, 12:34 PM We are in the process of purchasing video cameras for monitoring EMC Immunity testing up to 10V/M. Pricing for cameras designed to withstand 20V/M is way high do any of you successfully use cameras that are not as sturdy? Or ... does anyone know where we might purchase a used system?? Sandi McEnery US Technologies 770-740-0717(ph) 770-740-1508 (fax) smcen...@ustech-lab.com mailto:smcen...@ustech-lab.com
Video Cameras for EMC Test Monitoring
We are in the process of purchasing video cameras for monitoring EMC Immunity testing up to 10V/M. Pricing for cameras designed to withstand 20V/M is way high do any of you successfully use cameras that are not as sturdy? Or ... does anyone know where we might purchase a used system?? Sandi McEnery US Technologies 770-740-0717(ph) 770-740-1508 (fax) smcen...@ustech-lab.com
