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Discussion in 'Android App Developers' started by jrpowell01, Jan 3, 2010.
Kirk and Spock would not be amused by this question.
I don't know much about this app, but a little experimentation with a magnet tells me the sensor knows in what the direction the magnet field is. For example holding a magnet in different areas show that the vector section at the top changes to a different corner when you move the magnet to a different corner.
So when you tilt the Droid is it measuring the magnet field more from the direction that you are pointing it at? This would explain why the magnitude changes depending upon the direction you point it at. I don't know, just guessing. Play with a magnet a little bit, and you'll see what I mean. However as you probably know, don't get the magnet too close or it will send the Droid into dock mode.
Put it up to an AC adapter and watch the alternating current.
the magnetic flux part to the tricoder app is pretty fancy but it still freaks out when you move the phone and there is really no indication to what the measure of the field is... there is just the half way up line and full way up line which is a bummer. Some one please make one a these!
I just released my Entity Sensor / EMF Detector on the Android Market for $4.99. Search for it or go to my web site: krugism.com Development.
Give it a try and let me know what you think about it.
I would really like to know if this app works for it's intended use. I am aware that electrical energy from just about any source causes EMF readers to spike, but I would love to know how this one works, as I can't find anything about it anywhere on the net. I don't want to spend money on it if it's no good.
Metaloid which is free in the market is a emf detector. Might want to check it out.
Yes, it does work. If you start the app, then move a magnet or any electrical device near the phone, the app senses the electromagnetic field and displays the change on the screen.
I've tried it around some haunted areas and have had some good results. I'm going to go another place hopefully this weekend and will video any results.
Also, you have 24 hours after purchase to cancel your sale and get a refund.
Give it a try and let me know what you think.