@all
It's unfortunate this thread has been slightly derailed by armchair physicists, but I've made my thoughts known about the purpose and agenda of detractors, disinformers, charlatans, and others.
I did some further experiments, namely with battery voltage vs frequency, and the correlation was present but not compelling. I will calculate the correlation coefficient, and post it. But to be honest, I am more interested in other basic research, which I think will yield higher correlation coefficients.
@acmefixer
I glossed over the lengthy article and I didn't see any mention of temperature.
-acmefixer
Good idea. Thank you.
Try it and you should have the same experience. But to see the changes, you should monitor these frequency changes over a shorter period, such as every second or five seconds. Due to the lack of any tuned circuit, the frequency changes seem to make little or no difference in the performance
-acmefixer
.
There is little variation , at least in my 7khz trifilar joule thief, of the frequency over short periods. Furthermore, I can only take data as fast as I can write (no digital capability on this scope unless I connect to the serial port). In any case, from my observations, the 'noise' (frequency fluctuation) at the 1second scale is at least one order of magnitude lower than the noise at the 10 second scale. The highest resolution I could get would probably be around 1second if I collect data via the serial port or a video camera.
Also, one has to remember that since the output is a constant string of pulses, the waveform actually consists of many waves each having its own frequency. Thanks go to Mr. Fourier for that observation.
-acmefixer
Indeed it does, there are always harmonics, but there is also a fundamental frequency. Are you arguing I'm not observing the fundamental frequency? Or just that there are an infinite series of harmonics above where I'm looking? Thanks
If you will refer to my first TWO POSTS of this thread, you will see that I presented "anomalous results" that puzzle me and are the basis of starting this thread and pursuing the JT-type circuit. The observation of a measured n = 113% I consider anomalous (don't you?)
-PhysicsProf
Absolutely PhysicsProf. Just ignore those who's purpose here is to derail research. This sort of basic R&D has tons of benefits, not limited to
-validating / invalidating 'official knowledge' (book knowledge)
-acquisition of relevant electronic components
-acquisition of relevant test equipment
-experience with test methodology
-experience with replication / replication speed and ability
-evaluation / classification of anomalies and/or potential OU conditions
-provide pool of basic research upon which to draw from
Anyone who's experimented with circuits long enough knows that sometimes really anomalous behavior can occur, and often these are related to conditions not predicted by conventional theory . We are also considering anomalies that may be caused by OU (overunity) conditions. For anyone who thinks this is impossible, then quit wasting your breath by posting here.
@all
I can only do experiments involving a single-channel scope and frequency counter at the moment (I need to purchase a four channel scope sometime in the near future), so for now, here are some future experiments I am considering to contribute to some basic research about this circuit.
On the agenda for Joule Thief:
Frequency vs Temperature
Frequency vs Voltage
Frequency vs Battery Capacitance
Frequency vs Battery Resistance
Frequency vs Time
Waveform vs Output Resistance
Waveform vs Output Configuration (diode or not)
Waveform vs Load
Output Configuration (diode or not) vs Current Draw
Output Resistance vs Current Draw
Cheers,
Feynman