RE: Magnifier conversion - pinger

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Terry Fritz" <teslalist-at-qwest-dot-net>

Just to follow up...

I modeled the pinger with this model for all three situations:

http://hot-streamer-dot-com/temp/NewMag/0504-01.gif

I get this graph of the resonances:

http://hot-streamer-dot-com/temp/NewMag/0504-02.gif


>Hi All,
>
>I pinged the various coil combinations with my "pinger" and ran them 
>through TCMA:
>
>Magnifier Without C2
>
>       Q      F      P      corrX  corrP    corrM err
>P 416.392 765897 -0.894 +0.673328 +0.387 0.935161 73.9%
>PK  FREQ kHz (Error +/-)    Q FACTOR (Error +/-)   LEVEL
>  1  155.132 (0.01%,12Hz)     192.17 (0.10%, 0.2)  -1.0dB
>  2  367.502 (0.01%,27Hz)     125.88 (0.25%, 0.3)  -7.0dB
>  3 1194.228 (0.01%,89Hz)      96.53 (37.56%,36.3) -30.0dB
>  4 1157.973 (0.01%,86Hz)      92.28 (31.58%,29.1) -29.7dB
>  5 1158.036 (0.01%,86Hz)      92.11 (31.58%,29.1) -29.7dB
>  6  765.914 (0.01%,57Hz)     416.39 (44.67%,186.0) -44.3dB
>Accounted for 99.59% of input signal

This is the green graph.  I see the peak at 158kHz but there appears to be 
a "dip" at 384kHz.  The dip is unexplained and why that would show on TCMA 
as a peak?  There might be something interesting going on there...



>Magnifier With C2
>
>       Q      F      P      corrX  corrP    corrM err
>P 227.261 206446 -1.028 +0.999987 +0.970 0.999998 3.0%
>PK  FREQ kHz (Error +/-)    Q FACTOR (Error +/-)   LEVEL
>  1  131.469 (0.01%,7Hz)      168.91 (0.49%, 0.8)  -0.2dB
>  2  206.451 (0.01%,11Hz)     227.07 (0.49%, 1.1)  -14.6dB
>Accounted for 99.84% of input signal

The blue graph.  Peaks at 132 and 217.5 kHz.  Pretty close.


>Conventional Coil
>
>       Q      F      P      corrX  corrP    corrM err
>P 162.489 1543328 -0.884 +0.411389 +0.209 0.985309 91.4%
>PK  FREQ kHz (Error +/-)    Q FACTOR (Error +/-)   LEVEL
>  1  178.748 (0.01%,15Hz)     138.85 (6.64%, 9.2)  -0.2dB
>  2  747.133 (0.01%,65Hz)     263.71 (0.99%, 2.6)  -14.6dB
>  3 1184.768 (0.01%,102Hz)    211.22 (3.95%, 8.3)  -23.5dB
>  4 1543.194 (0.01%,133Hz)    161.72 (18.78%,30.4) -29.1dB
>Accounted for 98.75% of input signal

The red graph line.  A peak at 180 kHz.  Very close.

So the system seems to match the TCMA test results.  The other peaks are 
due to strays and internal resonances of the coils that I would never be 
able to fish out.  But they seem to be far down in the noise.  I will see 
if I can match up some of the tested "Q"s too.  That is sort of hard since 
I would have to load the coil's output, but maybe the plain wave antenna 
could do it.  Or, just sweeping the models to match up RL2 and RL3...

Cheers,

         Terry