An example of a high Q mechanical resonance is the Ultramax tag used to discourage shop lifting. It couples to RF driving magnetic fields at 58 kilohertz by using magnetostriction. The Q can typically be around 300 with these devices. This quite reasonable Q suggests that a far larger energy wave is propagating throughout the tag than is required to excite it.
Quartz crystal resonators exhibit much higher Q's which tends to be typical of stiff mechanical resonances. Coupling to the internal resonances is generally by electric fields with crystal devices. It would not be too surprising to discover that similar high level induced acoustic waves would result in extreme pressures within the materials assisting LENR production such as mentioned by James. If this is true, the resonant drive frequency would be critical and occupy a very narrow bandwidth. Perhaps that is why it is difficult to accurately locate the desired drive frequency since a tiny frequency error would have enormous consequences. There are tricks that can be applied to allow an accurate determination of the assumed high Q cathode mechanical resonance since the average frequency might not be accurate enough to work well with production variations. Dave -----Original Message----- From: James Bowery <[email protected]> To: vortex-l <[email protected]> Sent: Thu, Nov 22, 2012 3:18 pm Subject: Re: [Vo]:25 experiments completed with borax and nickels As I previously advised: "Look at the acoustics of the electrodes." Since this advice seemed to make no impact on the discourse here at vortex-l, let me expand: Acoustic resonance in the metallic electrodes does have a reasonable chance of bearing directly on the creation of the "nuclear active environment" hypothesized to exist. I don't think I need to expland on list the possibilities here. Moreover, if one looks at the speed of sound in metals, the "430kHz LENR signature" regime corresponds to the thickness of the cathodes frequently reported as exhibiting the phenomena. Need I say more? Re: [Vo]:430 kHz may be a LENR signature James Bowery Tue, 20 Nov 2012 19:31:29 -0800 Look at the acoustics of the electrodes. On Tue, Nov 20, 2012 at 5:59 PM, Jones Beene <[email protected]> wrote: > There is an RF signal which appears to have a strong correlation to excess > heating events in one kind of LENR. This is from a recent paper at ICCF17. > > The signal has a frequency of .43 MHz (430 kHz). This seems to be a > signature - and a strong one. But it is too early to generalize. > > I have looked high and low to find some broader significance to this > particular frequency, but nothing seems to turn up. This is "longwave" once > used for Morse code and warning beacons, but not much used anymore. Who > wants a 700 meter antenna? > > There is some relevance to "Rabi frequency" and to MRI but this seems > incidental. > > A real connection to nuclear events seems extremely remote, given the > wavelength - but it is there, and knowing why it is there could be > important. > > Very strange... > On Wed, Nov 21, 2012 at 9:43 PM, Jack Cole <[email protected]> wrote: Hi folks, I have completed a long series of experiments utilizing borax, standard nickels (combined with thoriated tungsten rods), and an automated Android phone control system. Although I developed some cool methods of running experiments, I have to conclude that I found no anomalous heating. Here is the final write-up and presentation. http://www.lenr-coldfusion.com/2012/11/22/automated-android-electrolysis-system-experiments-1-25/ Best regards, Jack
