Resonance and HHO

[Gwandau]

Not scared, just keeping a respectful distance until assimilated enough harmonic theory to be able to ask meaningful questions in regard to HHO resonance.

How do you plan to implement the frequency experiments? Treating the water as an electrolyte and subjecting it to alternate current or pulsed DC, or both? Or are you thinking underwater soundwave generation?  I myself am going for sound generation. Maybe my old analogue synthesizer will be of use, it's an old Moog replica made by Roland (Roland System 100) with two independent oscillators and a diversity of interconnctive possibilities between all kinds of wave modulator and filters, you know, one of these old fun machines with a tendency to get absolutely covered with cables at the end of the day.


A lot of alternatives comes to my mind, most of them probably easily discardable due to my ignorance in the field, such as how about creating resonating or interfering patterns between two HF PWM:s with one of their poles at two different ends of a nonconductive cylinder of a diamter and length decided by a suitable harmonic and their other poles being situated around the middle part of the cylinder? The cylinder shape seems to be considered an interesting shape when it comes to harmonics. And so on and so forth, ideas surface now like bubbles in champagne, and probably just as shallow.

So don't take my suggestions too seriously, I'm just freewheeling deep into the Swedish winter night.

Cheers,

Gwandau

[SeaMonkey]

Harmonics are based upon wavelength, and not upon 1/4 or 1/2 wave etc.


A 4th order harmonic is the base frequency multiplied by 5. For instance, using a 60Hz base frequency.


Base (1 wavelength) = 60Hz
1st order (2 wavelengths) = 120Hz
2nd order (3 wavelengths) = 180Hz
3rd = 240Hz
4th = 300Hz

Interesting discussion.

Harmonics are actually multiples of a fundamental
frequency.  The fourth harmonic (fourth multiple) of
60 Hz would be 240 Hz; while the Fourth Overtone of
60 Hz would be 300 Hz.

The First Overtone is equivalent to the Second Harmonic.

[SeaMonkey]

If I remember correctly, the resonant multiple which places the amplitude peak at maximum at 1/4 is in multiples of five wavelengths anyway. I will have to check to be sure, but I think so, just speaking off hand.

For Quarter Wave resonance the length of the
Antenna would be 1/4 the length of the resonant
frequency wavelength; or saying it another way,
the length of the antenna would be the length
of the 4th Harmonic.

This will result in a standing wave which is the
result of the forward and reflected waves which
are traveling in opposite directions.  The end of
the antenna which is fed will represent the Low
Impedance point and the opposite end will represent
the High Impedance point.  The Low impedance
point corresponds to minimum voltage and maximum
current while the High Impedance end corresponds
to Maximum Voltage and Minimum Current.  This is
known as the Quarter Wave Transform[ation.]

The Characteristic Impedance (or Radiation Resistance)
of a Quarter Wave antenna is 50 Ohms.  Since the antenna
is at resonance its input point will appear to be purely resistive
to the source of applied power.

[pauldude000]

It is indeed multiples of five. Below is a demonstration picture I made to show this. Using multiples of five is the ONLY ratio which reinforces the wave at all points. When the longer wave is at 0, maximum, or minimum, the harmonic matches. This is not true of 2,10,or 50, but is true of 5, 25, 125 (IE TIMES or DIVIDED by 5)

[pauldude000]

Interesting discussion.

Harmonics are actually multiples of a fundamental
frequency.  The fourth harmonic (fourth multiple) of
60 Hz would be 240 Hz; while the Fourth Overtone of
60 Hz would be 300 Hz.

The First Overtone is equivalent to the Second Harmonic.

True, SeaMonkey. However most resonances actually impede or cancel out higher and lower resonance frequencies due to being "out of step" so to speak with the harmonic. Tesla was after reinforcing resonance, where the signals did not attempt to cancel each other out.


It took me forever to understand what he was ultimately getting at. I think he assumed everyone thought that way.