Motor-Generator

[gotoluc]

Luc,


sorry to ask, did you mean it made "NO difference" ?  You wrote "on difference" which was also translated to Russian as "it made a difference"...

Gyula

Yes, "NO difference"

Thanks for catching that!... I edited the reply

So you can you read Russian?

Luc

[yssuraxu_697]

3256uH @ 60630Hz
2.45 Ohms RC Time 00.249s

Why this strange freq? Pretty high for measuring this kind of stuff...
Reading may be a bit off.

Anyway lets say its correct - then XL is about 5.5...6.7ohms at your working freq (about 300Hz?).
Not the worst coil in the world. Q about 2.5...3.
But the effects I was talking about take place at much higher Qs - phase angle should be 85'+
Quite problematic to achieve with this small half-toroid.

So in that sense it is not correct replication... unless I'm totally overlooking something.
For example in original video the magnet clearly has very small effect on half-toroid inductance
becuse toroid is huge and magnet is pretty small and far away.
In your case the inductance difference is probably large in 0' vs 90' positions.

I think setup would behave as in Miroslav13 video when there would be:
- large phase shift >85'
- neglible change in half-toroids inductance in 0' vs 90' positions
- lossy core

[gotoluc]

Why this strange freq? Pretty high for measuring this kind of stuff...

This is my new LCR meter, it auto adjust Frequency from 1Hz to 500kHz

http://www.ebay.com/itm/390609554261?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

[gyulasun]

So you can you read Russian?

Luc

I simply used google translate to reverse-translate your Russian text... and thought you also made a typo with the word "on" instead of writing "no" as in your English text.

Gyula

[yssuraxu_697]

This is my new LCR meter, it auto adjust Frequency from 1Hz to 500kHz

Hm... this instrument should be operated with caution because when you are measuring very far off devices real operating point reading may be quite different.
But probably ok in this case.