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Author Topic: Kapanadze and other FE discussion  (Read 1147257 times)

stivep

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Re: Wesley's Kapanadze and other FE discussion forum
« Reply #2100 on: November 21, 2021, 02:04:12 AM »
Quote
my notes to the article :
BackDoor: Making Microphones Hear Inaudible Sounds Nirupam Roy, Haitham Hassanieh, Romit Roy Choudhury University of Illinois at Urbana-Champaign
https://nsr.cse.buffalo.edu/mobisys_2017/papers/pdfs/mobisys17-paper01.pdf

-------------------------------------------------
Quote
The diaphragm of the microphone should exhibit some sensitivity
at the high-end frequencies (> 30kHz). If the diaphragm
does not vibrate at such frequencies, there is no opportunity for non-linear mixing of signals.
(3.1 Measurements and Validation page#4)
 [/font]
Quote
The second order coefficient A2 needs to be adequately high to achieve a
meaningful signal-to-noise ratio
(3.1 Measurements and Validation page#4)
A1 or A2..3..4 is a complex gain that can change the phase and/or
amplitude of the input frequencies,
(Linear and Non-linear Behavior page#4)
Note: You may need to connect microphone to your spectrum analyzer using separating capacitor for DC Power supply  elimination.
if you  put DC  to input of spectrum analyzer than your instrument  gets damaged.
---------------------------------------------
Note: 1st order, 2nd order,3rd order are the harmonics.
(Figure 5: (a)The intermodulation distortion of signal (b) Harmonic distortion. page 5)
Note:
Quote
Thus far, the shadow signal is a trivial tone carrying one-bit of information (presence of absence).
(4.1 Communication page 5)
Conclusion :So they are talking  about a "shadow" seen at digital output.-  not in physical XYZ space.
[/font]
Quote
our actual goal is to modulate the
high frequency signals at the speaker and demodulate the
shadow at the microphone to achieve meaningful data rates
(4.1 Communication page 5)

Quote
any modulation that generates waveforms
with non-constant envelopes [45] is likely to suffer this problem.
Note: AM modulation is not applicable due to severe problems.
(Failure of Amplitude Modulation (AM) page 5, look also at Figure 7  )
Ok I'm giving up for today - the rest of the article is easy to understand.
Wesley

« Last Edit: November 21, 2021, 01:15:07 PM by stivep »

stivep

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Re: Wesley's Kapanadze and other FE discussion forum
« Reply #2101 on: November 21, 2021, 06:57:49 AM »
I used two dynamic heads, type 6gdv.
The frequency was fed to one 20 kHz, to the second 21 kHz.
Sound was received by the device ВШВ003
For some reason, I did not hear a sound at 1 kHz.
Технические характеристики ВШВ-003-М2:

Частототный диапазон, Гц 2 – 18000 = 18kHz !!!!!!!!!!!!!!!!!!!!!!!!!

Динамический диапазон, дБ 22 – 140
Частотные корректоры A, B, C, Lin
Временные характеристики Slow, Fast, 10c
Класс точности 1,0  class 1
Октавные фильтры со среднегеометрическими частотами, Гц 1 – 8000
Питание сетевое и автономноеМасса, кг 5,5.
______________________________________________________________

Few Questions:
How come you made measurement  with the device that goes max to 18kHz?
How did you fed  2 signals at the same time  with two
 two dynamic heads, type 6gdv. into instrument that has only  one  probe input?
http://www.tehno.com/product.phtml?uid=B00120039561
objections and problems:
-20 kHz and
21 kHz is out of range of this instrument.



______________________________________________________________
Sound was received by the device ВШВ003
again this device when belongs to group of  class 0 or class 1 has limit of frequency  maximum to 18kHz.
https://www.prostanki.com/board/item/73931
Технические характеристики ВШВ-003-М3:
Частототный диапазон, Гц 2 – 18000kHz
Динамический диапазон, дБ 22 – 140
Частотные корректоры A, B, C, Lin
Временные характеристики Slow, Fast, 10c
Класс точности 1,0
Октавные фильтры со среднегеометрическими частотами, Гц 1 – 8000
Питание сетевое и автономноеМасса, кг 5,5.


objections and problems:
-20 kHz and
21 kHz is out of range of this instrument.
Wesley
« Last Edit: November 21, 2021, 01:09:51 PM by stivep »

kolbacict

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Re: Wesley's Kapanadze and other FE discussion forum
« Reply #2102 on: November 21, 2021, 08:25:14 AM »
No, no lie, it was a joke. :D
I thought an alcoholic was resting under your table ...
I am a man with humor, without which it is unbearable to live in this country. ;D

Quote
Частототный диапазон, Гц 2 – 18000 = 18kHz !!!!!!!!!!!!!!!!!!!!!!!!!

Yes you are right. I studied the documentation poorly.
I have had it for ten years, and have not really studied it.
ok, we will continue to work. :)
True, I lowered the frequency to 16 kHz later(I don't hear that either), but the difference frequency beats were not apeared as well.
« Last Edit: November 21, 2021, 11:51:00 AM by kolbacict »

stivep

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Re: Wesley's Kapanadze and other FE discussion forum
« Reply #2103 on: November 21, 2021, 10:17:11 PM »
Question to Wesley?
( can we do it ? Is it useful/scalable ?
https://overunity.com/18977/carat-trax-forever-battery/msg561622/#new
Chet K
Yes you can . Nothing new.
However  the heat coming  from central heating pipe  helps.
We know that in cold temperature  failure of some  forms of batteries is evident.
 
Quote
The Zinc and Copper Battery In a zinc-and-copper battery, the chemical reaction
involves the transfer of electrons from solid zinc to copper ions.
The zinc is therefore the anode; solid zinc is oxidized. The copper is the cathode; copper ions are reduced
.
https://education.seattlepi.com/happens-battery-zinc-sulfate-mixed-copper-sulfate-6031.html
Wesley

kolbacict

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Re: Wesley's Kapanadze and other FE discussion forum
« Reply #2104 on: November 23, 2021, 06:59:04 PM »
I found a microphone from an ultrasonic TV remote control telefunken.
There is no marking. TV set in 1976. Data and connection diagram find are unrealistic.
But most likely the type is capacitor. And the maximum frequency should be quite high. ;)

kolbacict

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Re: Wesley's Kapanadze and other FE discussion forum
« Reply #2105 on: November 23, 2021, 07:13:16 PM »
Quote
https://askanydifference.com/difference-between-lay-and-lie/
well, good reference.thanks.
It seemed to me that was a drunken man lying under your table.
That's right?  :D

kolbacict

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Re: Wesley's Kapanadze and other FE discussion forum
« Reply #2106 on: November 24, 2021, 03:47:30 PM »
Known separators for non-magnetic materials using a magnetic fluid.
In them, the specific density of the liquid increases as a result of the action of an external magnetic field. The question is how much energy needs to be spent to create a magnetic field. And how much will we get from the increase in the potential energy of the floating up body? I still can't find answer in any books. maybe I was a bad seeker?

kolbacict

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Re: Wesley's Kapanadze and other FE discussion forum
« Reply #2107 on: November 24, 2021, 06:53:07 PM »
Why is not a single bubble of hydrogen or oxygen emitted between the plates of the water condenser and other components in the water generator of Marx?
Sorry to be off-topic, but there is no one else to ask. :)

lancaIV

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Re: Wesley's Kapanadze and other FE discussion forum
« Reply #2108 on: November 26, 2021, 01:51:35 PM »
https://www-n--tv-de.translate.goog/auto/Das-Brennstoffzellen-Motorrad-naht-article22954646.html?_x_tr_sl=de&_x_tr_tl=en&_x_tr_hl=de&_x_tr_pto=nui
Segway does not reveal how far the e-bike can get in total, but according to the manufacturer, one gram of hydrogen should be enough for one kilometer for the Apex.1 Kg hydrogen ~ 33 KWh  ergo 33 Wh per Km
fuel-to-wheel conversion efficiency ?From ebike to city-etrike ,hibrid or full electric
https://www.pinterest.com/pin/288019338658790702/Happy weekendOCWL

kolbacict

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Re: Wesley's Kapanadze and other FE discussion forum
« Reply #2109 on: December 01, 2021, 06:59:56 PM »
Quote
If you go to  newly freed from soviet terror  countries  you may see some people complaining
that businesses got private  and  nobody wants to  make some parts for you  on company lathe , milling machine  and soon.
I understood.

lukaszkwiatkowskii

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Re: Wesley's Kapanadze and other FE discussion forum
« Reply #2110 on: December 02, 2021, 03:31:06 PM »
I dlatego łatwiejszy start ma dowolny hobbysta z USA od innych, ja jak zaczynałem to miałem gówno a nie start, o "true rms" to ja se mogłem pomarzyć jedynie, a oscyloskop to se przerobiłem ze starego rubina.

stivep

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Re: Wesley's Kapanadze and other FE discussion forum
« Reply #2111 on: December 06, 2021, 01:18:22 PM »
News:
12 days ago.
12   дней назад
3200W at output.
1,752,350  views  просмотры Nov 24, 2021
Mr. Elias  (Filipinos)
main two links:
https://www.youtube.com/watch?v=r51TdNPA55s&t=1s
https://www.youtube.com/watch?v=nb0wkOKJfCs

but I suggest first start from  links below
Note: links below are from the two videos and they start from given video frame at given time  reflecting interesting information.
https://www.youtube.com/watch?v=nb0wkOKJfCs
https://youtu.be/r51TdNPA55s?t=1701
https://youtu.be/nb0wkOKJfCs?t=1320


Note : the pictures are oversized  on purpose  for better detail view.
Wesley

stivep

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Re: Wesley's Kapanadze and other FE discussion forum
« Reply #2112 on: December 06, 2021, 02:20:27 PM »
This link shows the process :
 from  switching ON the device.
https://youtu.be/r51TdNPA55s?t=1411


Wesley

stivep

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Re: Wesley's Kapanadze and other FE discussion forum
« Reply #2113 on: December 06, 2021, 03:10:11 PM »
internal components of second unit:
https://youtu.be/nb0wkOKJfCs?t=1351
Wesley

lukaszkwiatkowskii

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Re: Wesley's Kapanadze and other FE discussion forum
« Reply #2114 on: December 06, 2021, 04:03:36 PM »
IMHO większość tego co jest na wierzchu to są śmiecie robiące za zaślepki, prawdziwe urządzenie jest niedostępne dla oczu.