>-----Original Message----- >From: John Woodgate [mailto:[email protected]] >Sent: Thursday, January 16, 2003 1:28 AM >To: [email protected] >Subject: Video Cameras for EMC Test Monitoring > > > >I read in !emc-pstc that Price, Ed <[email protected]> wrote (in ><[email protected]>) 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 [email protected] 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: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] 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"
