Brian, On my Android-based phone there are a variety of programs that use the built-in compass as a magnetic field detector or ferrous metal detector. One of these is called "Tricorder" and it has a magnetic flux meter. Doesn't pick up much of anything in a general office environment unless you put the phone in close proximity to ferrous metal or a power strip. Goes off the chart if I put it next to the subwoofer. Compass readings are likewise adversely affected. Which goes to show you that the earth's field greatly overpowers most of the magnetic fields we are exposed to in our homes and offices.
Ryan is in the unfortunate position of having to prove a negative. Dan -----Original Message----- From: Kunde, Brian [mailto:[email protected]] Sent: Friday, February 04, 2011 9:56 AM To: [email protected] Subject: Re: [PSES] Gauss Meter recommendation Maybe someone can create an APP for a Smart Phone that will do the trick. I have an APP that turns by Phone into a Star Trek Communicator. One of my favorites. The Other Brian -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Dan Roman Sent: Friday, February 04, 2011 9:36 AM To: [email protected] Subject: RE: Gauss Meter recommendation Since we are talking pseudo-science here I would recommend getting something that looks hi-tech. Last thing you need in this situation is something that gives accurate measurements but looks like a plain old voltmeter with small field probes. The paranoid homeowners will be more impressed with some Star Trek prop rather than a real scientific instrument anyway! Get something that gives you real data, but this is going to be a dog and pony show as much as anything else. Bad situation to be in. While Transcranial Magnetic Stimulation has been scientifically shown to be able to "hack" the human brain, the fields that this magnetic wands use are several orders of magnitude over what distant power lines or even the wiring in a house or appliance generates. Of course I may not be thinking straight as I listen to Green Day on a pair of headphones that are magnetizing my brain! Dan -----Original Message----- From: Jayasinghe, Ryan [mailto:[email protected]] Sent: Thursday, February 03, 2011 4:12 PM To: [email protected] Subject: [PSES] Gauss Meter recommendation Dear Group, I have been tasked with recommending a Gauss meter and welcome your comments and experiences. This meter will be used to determine if a certain residence is receiving too much EMF. There are power lines just outside and the residents have trouble sleeping, they have other residences where sleep is not an issue. I have looked at some 3 axis models for around $300.00, ones with data logging are more. Is frequency weighting an important feature? We are also open to renting. We have a hp spectrum analyzer/biconical antenna but that would be too unwieldy. If portable or handheld spectrum analyzer would be the better tool, this maybe an opportunity for me to purchase one. Any advice is appreciated. Models methods anecdotes... Regard, Ryan Ryan Jazz Jayasinghe Compliance Engineer x1198 Canoga Perkins Direct:(818) 678-3898 20600 Prairie Street Company:(818) 718-6300 Chatsworth, CA 91311-6008 e-mail: [email protected] www.canoga.com FAX:(818) 678-3798 - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. 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