Quote:
Originally Posted by Mike(Mont)
This post has been deleted. I tried to help. These Pistol type locators are not right anyway so no sense to try to fix.
I throw my hands up into the air. At what point does this become a hoax? Qiaozhi says he encourages experimentation, but as soon as someone offers a suggestion, they are shot down. What I am saying is not in any electronics textbook. I understand most people think that is all there is to reality. I say B.S. So I give up. Bye bye.
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All you need to do is connect a coil to an oscillator circuit, as shown in the TOTeM article, and place a ferrite coil along one of the null lines shown in Fig.7. With a scope attached to the ferrite coil, or (if the TX oscillator is in the audio range) an amplifier driving a speaker, and you can easily locate the null. This null line radiates out away from the coil as shown. In fact, there are really two null cones surrounding the coil. Try it ... you'll find that it's not just a theory. The null lines are really there.
Also, the magnetic field is not concentrated at the center of the coil. The field strength falls off with distance, and is weaker the further you get away from the coil winding.
By the way, I'm not "shooting you down", but simply correctly your misconception.