At work, facilities has installed touchless faucets and towels dispensers and flushers. Some work rather randomly, mostly on purpose and quite often without any purpose. We do make a rather lot of EM noise in the building, and I'm not bothering to find out how much at each of the restrooms. It entertaining to find 6 feet of hand towels hanging out of the machine and the sink running as the toilet flushes, just as you walk into an empty restroom. It's a good example for management when they argue that x V/m is too high for our product. I ask just how much they are spending on water and paper? That must be why they get the big bucks, to determine that it's not the same thing. -
Bill In the event of a national emergency, click on the following links to provide directions to your duly elected mis-representatives. http://www.usa.gov/Contact/Elected.shtml or... https://writerep.house.gov/writerep/welcome.shtml http://www.senate.gov/general/contact_information/senators_cfm.cfm if really desperate... http://www.usa.gov/Contact/Elected.shtml --- On Wed, 8/11/10, Cortland Richmond <[email protected]> wrote: From: Cortland Richmond <[email protected]> Subject: RE: [PSES] RI query To: [email protected] Date: Wednesday, August 11, 2010, 9:34 PM Some decades ago we in the EMC lab at Tandy were asked to solve a problem; the building fire alarm was going off at fairly regular times in the then new R&D building -- with no signs of fire anywhere. It was solved when I suggested the security guards NOT call in while standing under the print room smoke detector. The detectors were replaced without delay. In a recent "lunch and learn" at work her in Michigan I cited two ways how a strong enough field might be produced to make susceptibility problems show up. One was the huge "Duga-3" OTH Radar (silent now,) in the Chernobyl contaminated zone). The one I had decent (if CNN and YouTube is decent) information about, the USSR having been reticent while it was still around, was a puny little GSM handset that turned on a stove's oven burner and had nearly caused a fire. At less than a foot from the controller, the field was enough, given that US consumer electronic devices are subject to only a "voluntary" ONE V/m immunity standard. FWIW... the OET 65 (and equivalent ICNIRP) limits are higher. Cortland KA5S ----- Original Message ----- From: Larry Stillings To: Bill Owsley;[email protected];Doug Nix Cc: [email protected] Sent: 8/11/2010 12:42:29 PM Subject: RE: [PSES] RI query In the hardware store, when those guys (firemen) would come in, we would use their radios to light up 4' fluorescent light bulbs. That was a long time ago, but it still made me wonder even back then ________________________________ - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]> - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]>
