Storing Cookies (See : http://ec.europa.eu/ipg/basics/legal/cookies/index_en.htm ) help us to bring you our services at overunity.com . If you use this website and our services you declare yourself okay with using cookies .More Infos here:
https://overunity.com/5553/privacy-policy/
If you do not agree with storing cookies, please LEAVE this website now. From the 25th of May 2018, every existing user has to accept the GDPR agreement at first login. If a user is unwilling to accept the GDPR, he should email us and request to erase his account. Many thanks for your understanding

User Menu

Custom Search

Author Topic: Faraday paradox revisited,magnetic field rotation question.  (Read 56527 times)

not_a_mib

  • Jr. Member
  • **
  • Posts: 91
Re: Faraday paradox revisited,magnetic field rotation question.
« Reply #90 on: September 05, 2016, 05:06:00 AM »
A "field mill" instrument might be usable for measuring the electric fields around these devices.  It is essentially the MOSFET electrometer mentioned earlier, with the pickup electrodes either rotating through the field to be measured or periodically shielded so the amplifier sees an AC signal.  This is much easier to detect, and works around charge leakage and drift in the amplifier.

An example design:  http://www.missioninstruments.com/pages/learning/about_fm2.html

lumen

  • Hero Member
  • *****
  • Posts: 1388
Re: Faraday paradox revisited,magnetic field rotation question.
« Reply #91 on: September 05, 2016, 07:33:36 PM »
A "field mill" instrument might be usable for measuring the electric fields around these devices.  It is essentially the MOSFET electrometer mentioned earlier, with the pickup electrodes either rotating through the field to be measured or periodically shielded so the amplifier sees an AC signal.  This is much easier to detect, and works around charge leakage and drift in the amplifier.

An example design:  http://www.missioninstruments.com/pages/learning/about_fm2.html

Seems like a bit of overkill for a sensor you could build for $3.00.
All these MOSFET sensors still require a reference to detect from no matter how advanced so operator error is a major fail point.

PolaczekCebulaczek

  • Full Member
  • ***
  • Posts: 160
Re: Faraday paradox revisited,magnetic field rotation question.
« Reply #92 on: September 09, 2016, 10:01:07 PM »
ok its time for small update:
 I just performed an experiment; rotating neo magnet and mosfet electroscope...
the problem is with rotating magnet, I have to rotate it on bike wheel because current from electric drill is affecting mosfet :/ this thing is really sensitive! so, RPM's were not the best.
Since LED visually is not telling much I hooked up voltmeter across LED to see things better and i did not register anything important, no electric field detected so far, need to build much better contraption for this, high RPM's are needed. 
« Last Edit: September 10, 2016, 02:04:34 AM by PolaczekCebulaczek »

lumen

  • Hero Member
  • *****
  • Posts: 1388
Re: Faraday paradox revisited,magnetic field rotation question.
« Reply #93 on: September 09, 2016, 11:17:21 PM »
ok its time for small update:
 I just performed an experiment; rotating neo magnet and mosfet electroscope...
the problem is with rotating magnet, I have to rotate it on bike wheel because current from electric drill is affecting mosfet :/ this thing is really sensitive! so, RPM's where not the best.
Since LED visually is not telling much I hooked up voltmeter across LED to see things better and i did not register anything important, no electric field detected so far, need to build much better contraption for this, high RPM's are needed.

I think you might want to modify the electroscope like the diagram I posted so you can adjust the trigger point to within a few millivolts.
Also you could make a temporary connection from the magnet to the minus terminal of the battery to set a common reference point.

Then even a slow rotation should provide enough to trigger the electroscope if in fact the field is rotating with the magnet.

Direction of rotation is also important as one direction would move electrons away from the gate and not trigger the LED.

PolaczekCebulaczek

  • Full Member
  • ***
  • Posts: 160
Re: Faraday paradox revisited,magnetic field rotation question.
« Reply #94 on: September 10, 2016, 02:05:21 AM »

Quote
I think you might want to modify the electroscope like the diagram I posted so you can adjust the trigger point to within a few millivolts.
Also you could make a temporary connection from the magnet to the minus terminal of the battery to set a common reference point.

Then even a slow rotation should provide enough to trigger the electroscope if in fact the field is rotating with the magnet.

Direction of rotation is also important as one direction would move electrons away from the gate and not trigger the LED.

yeah, thanks for tips I will try that soon.


guest1289

  • Sr. Member
  • ****
  • Posts: 326
    • The download link for the document containing my 'Inventions and Designs'
Re: Faraday paradox revisited,magnetic field rotation question.
« Reply #95 on: September 10, 2016, 04:56:18 AM »
    The  Rotating-Permanent-Magnet  in the  Faraday-Magnetic-Rotation  experiment below( on wikipedia ),  not only  rotates  around the  electrical-conductor,    it  also  rotates  on it's  'own-axis'.

    https://en.wikipedia.org/wiki/File:Faraday_magnetic_rotation.jpg

     However,  everyone says that you can't make a  disk-magnet spin using electric-current ?

     I assume this contravenes the  Farday-Paradox( not sure ) .


Magluvin

  • Hero Member
  • *****
  • Posts: 5884
Re: Faraday paradox revisited,magnetic field rotation question.
« Reply #96 on: September 12, 2016, 06:02:41 AM »
First one is about issues with earths field affecting magnets as we simply play with them on a table. Tried it at home, work and my shop.  Earths field is pretty strong and should be considered in certain magnet motor setups. Maybe it can be used. The poles are sooo far away. Not like Things we spin on the bench where there is very close proximity with high lenz drag and cogging(cores). Here we have the same strength of field from the earth, within say a bench top device.

The mags spinning on a spindle on the outer edge of the rotor doesnt apply drag to the system, other than keeping itself in an earth field alighment, depending on the rotor alignment.

What is very interesting here is, you can compare a magnets field, at a certain distance from another mag, one on each facing side of the test mag, enough to neutralize the earths effect on the test mag. So say I have the test mag set up so it is just naturally pointing N as shown in the vid. Now from the N side and S side of the test mag, slowly bring closer similar mags with their face in repulsion of the test mag to a point where you can easily turn the test mag away from the earths pole.  That would be a test to see how the mag react to each other vs their earth compass function. Once they are at a distance from one another, then they can be used as switching devices without any drag affects on the rotor. The only physical effect of the edge mag on a spindle is to keep in pole alignment, of which you can do work for the price of getting the rotor with total rotor weight up to speed. The mags will follow earths fields pretty strongly if u use the right mags.

The second vid is of things you are discussing.

https://www.youtube.com/watch?v=6gOO7OHHeMM

https://www.youtube.com/watch?v=s56ghlm0oJw

Soo. Can we apply dc at one edge of the disk magnet(on and axle) an the other dc lead to the other edge of the magnet. Will it spin? Will it be the magnets own functions and reactions to itself that makes it spin, or is it the field of the input wires that get it going?

Mags


allcanadian

  • Hero Member
  • *****
  • Posts: 1317
Re: Faraday paradox revisited,magnetic field rotation question.
« Reply #97 on: September 12, 2016, 06:25:03 PM »
@guest1289
Quote
The  Rotating-Permanent-Magnet  in the  Faraday-Magnetic-Rotation  experiment below( on wikipedia ),  not only  rotates  around the  electrical-conductor,    it  also  rotates  on it's  'own-axis'.

https://en.wikipedia.org/wiki/File:Faraday_magnetic_rotation.jpg

However,  everyone says that you can't make a  disk-magnet spin using electric-current ?

Nowhere in any of the articles I have seen does it mention the magnet rotating on it's own axis. In fact this experiment proves nothing more than conventional motor theory and gives no indication as to whether the permanent magnet field rotates or not. You do understand the conductor has a circular spin field which falls in line with basic motor theory don't you?.

AC

lumen

  • Hero Member
  • *****
  • Posts: 1388
Re: Faraday paradox revisited,magnetic field rotation question.
« Reply #98 on: September 12, 2016, 09:24:24 PM »
Place a metal magnet in water add a charge and it will spin ! You don't understand  anything outside the book of deadheads and rotten broomsticks ..................... Don't insult or you will be made to look like an idiot ... !

Regards
S9 ...

That is quite a vague statement.
Add a charge?
Are you thinking like a static charge or ..... some current flow from point A to B or some type of yet unknown principal?
You might want to be more specific so you don't insult yourself.

guest1289

  • Sr. Member
  • ****
  • Posts: 326
    • The download link for the document containing my 'Inventions and Designs'
Re: Faraday paradox revisited,magnetic field rotation question.
« Reply #99 on: September 14, 2016, 01:32:05 AM »
   This post is about the  permanent-magnet   orbiting around  an  electrical-conductor  in the  Faraday-Motor  below  :
     https://en.wikipedia.org/wiki/File:Faraday_magnetic_rotation.jpg

Quote
allcanadian
    Nowhere in any of the articles I have seen does it mention the magnet rotating on it's own axis.

    I should have typed  'magnet rotating on it's own axis from the perspective of the  current-carrying-wire,  around which the magnet is orbiting.
     
    Pretending my mouse is the  permanent-magnet  orbiting in this motor,  if I swing my mouse by the cord around an object,  in 1 orbit,  the magnet has also done 1-full rotation on it's own axis,   from the perspective of the  current-carrying-wire .

    -  What if the magnet was prevented from orbiting around the wire,   and you added a  shaft  to that  magnet  to permit  the magnet  to rotate on it's own axis,   I just assume that the magnet  should  then  'rotate on it's own axis' ,   from the perspective of the earth.
        -  But everyone says it will not rotate.

    -   What if the only change you made to the motor,  was to simply add a shaft  to the  magnet  to permit  the magnet  to rotate on it's own axis,   and you still allow the magnet to  rotate/orbit  around the wire,   I wonder what would happen .

    -  If no liquid is utilized  in this motor,  by using brushes for example,  I assume that that  magnet  will still  orbit  around the  wire,   but I don't know,  surely it has nothing to do with the  liquid-mercury( or brine substitute ) .
        I have never seen any other  motor  where a  symmetrical-magnet  like this one ,  orbits,  or rotates on it's own axis from the perspective of the  current-carrying-wire .

Quote
In fact this experiment proves nothing more than conventional motor theory and gives no indication as to whether the permanent magnet field rotates or not. You do understand the conductor has a circular spin field which falls in line with basic motor theory don't you?.

   Yes,  all of the  electric-motor-deigns  I have posted on this site,  are designed to  function  'directly'  from the interaction with that   'circular spin field'.


 
Quote
Sequental.9
    You can get a disc magnet to spin either in water or on a crystal lenz or in a DJ turntable drive or by inductive resonance or in zero gravity

 
Quote
you can get it to spin X potentially if you coat it in silver then varnish and hit it with a lot of volts or static or monopole pulse

   This could give me a clue as to what else could be going on in that motor,  if in fact this motor is different to other normal motors,   although these days they substitute the mercury with brine,  but you have also mentioned  water .

Magluvin

  • Hero Member
  • *****
  • Posts: 5884
Re: Faraday paradox revisited,magnetic field rotation question.
« Reply #100 on: September 18, 2016, 04:18:48 PM »
Found this vid interesting. ;)

https://www.youtube.com/watch?v=Rpr9igNt7hk

Mags

synchro1

  • Hero Member
  • *****
  • Posts: 4720
Re: Faraday paradox revisited,magnetic field rotation question.
« Reply #101 on: September 19, 2016, 01:03:54 AM »
I just ordered some magnets for final experiment.

meanwhile..

this probably has been discussed 100 of times but once again for sake of this topic:
Would a magnet like this rotate if current flows in wire ?
What will happen if compass is inside the ring?

Using "Flemings left hand rule" you can see that the magnetic field would be pushing against the radial wall. No motion possible in that direction.

synchro1

  • Hero Member
  • *****
  • Posts: 4720
Oersted experiment.
« Reply #102 on: September 23, 2016, 07:51:13 PM »
Using "Flemings left hand rule" you can see that the magnetic field would be pushing against the radial wall. No motion possible in that direction.

Here's a video demonstrating the effect of an electric current in a wire on neo magnets.


https://www.youtube.com/watch?v=r8wBt9Q8H5I&feature=youtu.be

PolaczekCebulaczek

  • Full Member
  • ***
  • Posts: 160
Re: Faraday paradox revisited,magnetic field rotation question.
« Reply #103 on: January 28, 2017, 11:23:10 PM »
I'm still trying to find electric field around spinning magnet meanwhile, I have another question :

Transformer, two coils, one coil inside the other, air core, HV pulses are flowing in primary, secondary coil IS ROTATING on axis, would a current be induced in secondary? would a bulb light up when connected to rotating secondary coil? 

AND watch this https://www.youtube.com/watch?v=c5wgmTGi5pU
extremely interesting conclusions!
« Last Edit: January 29, 2017, 02:20:43 AM by PolaczekCebulaczek »

synchro1

  • Hero Member
  • *****
  • Posts: 4720
Re: Faraday paradox revisited,magnetic field rotation question.
« Reply #104 on: January 29, 2017, 06:44:35 PM »
I'm still trying to find electric field around spinning magnet meanwhile, I have another question :

Transformer, two coils, one coil inside the other, air core, HV pulses are flowing in primary, secondary coil IS ROTATING on axis, would a current be induced in secondary? would a bulb light up when connected to rotating secondary coil? 

AND watch this https://www.youtube.com/watch?v=c5wgmTGi5pU
extremely interesting conclusions!

The secondary should rotate end over end inside the air core of the primary to generate power.