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Originally Posted by aft_72005
Hi J_player ant Tim Williams
I study about NMR and function generator with lords . Carl MFD article use sinuses
Wave and Carl VR 800 article use 555 as repeated pulses . it produced wide range
Harmonic frequencies ( saw on spectrum analyzer screen) .
Both wave method generation with LRODS produce behavior result .
Maybe LRODS with transmitter base on NMR . finally I cannot fined method base on theory  !!!
Therefore released this subject at that time !!! . But also I am interest know more in
The mater .
Best regards.
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Hi Aft,
I never saw any evidence that a function generator can find hidden substances. There is no base theory to support this idea that makes any sense to me. But there is a theory about oscillating motions that resonate. The theory is that oscillating things tend move in a sinusoidal motion when they are oscillating mechanically or if they have charges or currents moving in a circular motion.
The theory suggests they will resonate with other oscillating things that are moving in a sinusoidal motion, whether mechanical or electronic. When we look at the 555 timer oscillators, these are usually producing square wave output that is sent to dowsing rods or to the ground.
This square wave represents a huge amount of odd harmonic sinusoidal oscillations mixed together, even though there is no electronic mixer (see here for some theory:
http://www.tpub.com/content/neets/14.../14181_190.htm ). The result can be expected to be different from the same oscillator which is producing a well-formed sinusoidal wave instead of a square wave.
I don't know from experience, but I would expect a sine wave to respond mostly to other things resonating at the same frequency or a harmonic of it in reduced amounts. And I would expect the square wave to respond the same as the sine wave, except I would expect the square wave to resonate much stronger with the harmonic frequencies you are not interested in.
But that is just a guess based on what the Fourier transforms look like when we see the harmonics and noise levels. Since we have no working model for MFD due to no understandable theory of resonant transmission and coupling for MFD, we can make a model with an acoustic system that has a large pipe organ and an audio sound generator.
Let us suppose we set up the sound generator (audio amplifier) in front of the organ pipes and turn it on to make a sine wave at one frequency. We will expect the pipe that is tuned to the same frequency to resonate and make a sound we can hear. We would also expect pipes which resonate at the second, third and other harmonics to make weaker sounds. When we listen to sounds from pipes that resonate at much higher harmonic numbers of the fundamental frequency, we would expect their resonant sounds to become weaker.
Now, if we were to switch the audio sound generator to make a square wave, then I would expect much more of the wave energy is being sent to other harmonic frequencies rather than concentrating only at the fundamental frequency. I would expect the organ pipes tuned to harmonic frequencies to be making louder resonating sounds than when the sine wave sound was played. I would also expect the sound from the fundamental resonating pipe will not be heard as well as when we had a sine wave because its sound is becoming lost in the noise of the unwanted pipes filling the air with sounds at various odd harmonic frequencies.
If we translate this model into detecting objects with electronic resonance, it would mean we are more likely to detect the object with the same resonant frequency if we are using a sine wave. And if we are using a square wave, we are more likely to become confused by the false objects we are detecting at harmonics of the oscillator frequency.
There are also other wave shapes which produce various harmonic distributions of the fundamental frequency of the oscillator, and may cause strange results if you are trying to couple only to the object which has the same frequency as the oscillator.
Another thing to consider if you are expecting to find atoms oscillating at their NMR frequency when they are buried in the ground is they are not in a uniform magnetic field. This means that for any element, not all the atoms are oscillating at the same frequency. The un-evenness of the earth's field in most ground will cause the Fourier distribution to become mushy instead of a sharp peak that only rings at a single frequency. This means your resolution goes way down, and it becomes difficult to detect the object you want if there are other objects that have similar NMR frequencies nearby. The overlap of frequencies could easily confuse to cause a number of false detections which turn out to be some different element than what you are looking for. This is a condition where noise becomes a more prominent factor in the method of detection.
For people who are not technical, I just said I expect a sine wave works better than a square wave for resonant coupling. And I expect it to be very difficult to identify elements by their NMR frequencies if they are buried and are only in the earth's magnetic field instead of being placed inside a very strong and uniform magnetic field coil. And I said I don't think any of this resonant NMR stuff can work for MFD oscillators. And I also said it is possible I made some errors in my description above. Some of what I wrote is based on the theory rather than my experience.
Best wishes,
J_P