Working Magnetic Motor on you tube??

[blue_energy]

I'm going to submit this to this forum, rather than FizzX, as I was originally intending - because it has the handy 'Attach' feature - and I want to show what some of my data looks like.

I'm really responding to RunningBare and TPUBruce on an experiment I did with Bruce's 2nd video - OCAL Magnet Motor Experiment 2.

I downloaded the audio portion of the file from the 2nd video (http://uk.youtube.com/watch?v=l2ycczuFEF8) using videoget (thanks for the heads-up on videoget, RunningBare!).  Then, I turned the mp3 into a wav and brought it up in my sound editing software (SAWPro).  When I look at the areas without voice, there is a regular, high pitched, oscillation.  When I enhance the area, it is easy to see the oscillation as a sine and measure the time between each peak.  My hypothosis is that if the rotor speeds up - the time between sine peaks will reduce.  Conversely, if the rotor slows down - the time between sine peaks will increase.  You may recall that pitch is measured on a logarithmic scale in which an octave higher requires double the frequency of the original pitch.  So, if the rotor speeds up enough to hear the difference - we should be able to measure a difference in frequency of the primary oscillation. 

Please find a snapshot from my editing software attached showing the sine at one location within the wav file (just before the first spoken, "Acceleration...".  You can see the beginning of the speech on the right side of the pic.

I measured the sine from peak to peak in 16 samples - four consecutive samples in each of 4 locations which are marked by speech.  Each sample represents a moment in time within the audio track.  My idea there is that it's pretty easy to not center the measurement exactly (since I'm eyeing it...) at the peak of a sine, and since the measurements are in thousands of a second - four in a row is more accurate.

The first location is slightly before the first spoken, "Acceleration...":

22.873
22.890
22.906      .048 seconds between first and last sample
22.921

The second location is just after the second, "Acceleration...":

26.925
26.941      .049 seconds between first and last sample
26.957
26.974

The third location is just after, "More Acceleration...":

33.24
33.254      .05 seconds between first and last sample
33.272
33.290

The final location is just after, "Goin' real good now..."

47.856
47.875      .053 seconds between first and last sample
47.891
47.909

If my relational hypothosis is correct - there was no acceleration - in fact (with excuses for the 'by-eye' methodology for the location of each peak) it probably slowed down.

<edit> fixed fat-fingering

[Omnibus]

@dean_mcgowan,

This needs further explanation (in case there were acceleration):

?there could be an elastic function between the rotor and the stators whereby the stators store some of the energy imparted into the rotor and release it back again
?
If we could see that the stators slowed down in relation to the speed gain of the rotor .. then maybe ..?

It?s one thing a proposed explanation to be a long shot and quite another that explanation to be simply implausible. Mind you, the stators you refer to aren?t even rotating. Probably you could elaborate more on that elastic function proposal.

[Yadaraf]

I'm going to submit this to this forum, rather than FizzX, as I was originally intending - because it has the handy 'Attach' feature - and I want to show what some of my data looks like.

I'm really responding to RunningBare and TPUBruce on an experiment I did with Bruce's 2nd video - OCAL Magnet Motor Experiment 2.

I downloaded the audio portion of the file from the 2nd video (http://uk.youtube.com/watch?v=l2ycczuFEF8) using videoget (thanks for the heads-up on videoget, RunningBare!).  Then, I turned the mp3 into a wav and brought it up in my sound editing software (SAWPro). 

......

Blue_Energy,

Could you post your wav file?  Thanks. 

Cheers,

Yada..
.

[RunningBare]

Yes I agree, sorry guys my initial assessment of the audio was wrong, I filtered the original audio then increased the overall pitch, it is now easy to hear that it is decreasing in acceleration from initial spin up.

http://cosmopod.com/mysite/barefm/op/sample_wave.zip

I'm going to submit this to this forum, rather than FizzX, as I was originally intending - because it has the handy 'Attach' feature - and I want to show what some of my data looks like.

I'm really responding to RunningBare and TPUBruce on an experiment I did with Bruce's 2nd video - OCAL Magnet Motor Experiment 2.

I downloaded the audio portion of the file from the 2nd video (http://uk.youtube.com/watch?v=l2ycczuFEF8) using videoget (thanks for the heads-up on videoget, RunningBare!).  Then, I turned the mp3 into a wav and brought it up in my sound editing software (SAWPro).  When I look at the areas without voice, there is a regular, high pitched, oscillation.  When I enhance the area, it is easy to see the oscillation as a sine and measure the time between each peak.  My hypothosis is that if the rotor speeds up - the time between sine peaks will reduce.  Conversely, if the rotor slows down - the time between sine peaks will increase.  You may recall that pitch is measured on a logarithmic scale in which an octave higher requires double the frequency of the original pitch.  So, if the rotor speeds up enough to hear the difference - we should be able to measure a difference in frequency of the primary oscillation. 

Please find a snapshot from my editing software attached showing the sine at one location within the wav file (just before the first spoken, "Acceleration...".  You can see the beginning of the speech on the right side of the pic.

I measured the sine from peak to peak in 16 samples - four consecutive samples in each of 4 locations which are marked by speech.  Each sample represents a moment in time within the audio track.  My idea there is that it's pretty easy to not center the measurement exactly (since I'm eyeing it...) at the peak of a sine, and since the measurements are in thousands of a second - four in a row is more accurate.

The first location is slightly before the first spoken, "Acceleration...":

22.873
22.890
22.906      .048 seconds between first and last sample
22.921

The second location is just after the second, "Acceleration...":

26.925
26.941      .049 seconds between first and last sample
26.957
26.974

The third location is just after, "More Acceleration...":

33.24
33.254      .05 seconds between first and last sample
33.272
33.290

The final location is just after, "Goin' real good now..."

47.856
47.875      .053 seconds between first and last sample
47.891
47.909

If my relational hypothosis is correct - there was no acceleration - in fact (with excuses for the 'by-eye' methodology for the location of each peak) it probably slowed down.

<edit> fixed fat-fingering

[blue_energy]

I'm going to submit this to this forum, rather than FizzX, as I was originally intending - because it has the handy 'Attach' feature - and I want to show what some of my data looks like.

I'm really responding to RunningBare and TPUBruce on an experiment I did with Bruce's 2nd video - OCAL Magnet Motor Experiment 2.

I downloaded the audio portion of the file from the 2nd video (http://uk.youtube.com/watch?v=l2ycczuFEF8) using videoget (thanks for the heads-up on videoget, RunningBare!).  Then, I turned the mp3 into a wav and brought it up in my sound editing software (SAWPro). 

......

Blue_Energy,

Could you post your wav file?  Thanks. 

Cheers,

Yada..
.

The wave is too big, Yada (over 13mb).  If you can convert it yourself, I would be happy to post the original mp3 though.  Just let me know.