FGM 3 sensor

[Orbit]

With the new coil ,


and the second inductancethe and on the same material I rolled up -I got three times better sensitivity !!!

[Orbit]

I thought the difference between the original fgm3 -and reconstructed !!!

[Orbit]

Whether they increase or decrease in frequency from the from the vitrovac ,FGM sensor 3 can achieve better sensitivity?

[Krzysztof]

Hi Orbit!
So.
U me above 100kHz frequency was already low compared with changes in the frequency of 40kHz. Assuming the same object changes.
Together with the increase in the frequency decreases preambility (u), nearly linear relationship.
This means a reduction of sensitivity!
Best regards Chris.

[teknoloji]

Have pictures of different coil.? winding shape is not obvious.

Regards

[Krzysztof]

Hi Teknoloji.
Typical carcass with a 3 mm, length 25 mm lens, 2000 turns.
Best regards Chris.

[kt315]

fgm3 original sensor resin removed - and vitrovac !!

why any work I see in forum making so unintelligently and so unaccurately? do you know what you did get NOTHING of useful info? you have only killed this sensor, wasted a time and your money

[Orbit]

and are you sure about that?

[Orbit]

and for me is not an issue 50eura even if I threw them!

[Orbit]

KT watch and admire what they do to people in Serbia !!

[Orbit]

This is for you unintelligent?

[mikipn]

KT watch and admire what they do to people in Serbia !!

regards orbit
I would ask if you want to do one photo, but only one plate vitrovac, and leave here in the forum

[Orbit]

vitrovac and 4 sensors on the picture of the tables as you know !!!!


And the second picture is my sensor is made but not with this material who supplies what is your picture on the left and the material in the left image but not at all vitrovac mumetal, and on my sensor as used by the kernel real vitrovac !!!

Left picture you sent me privately it is these miki ,I wrote a in terms of what people do, and I appropriated your picture as my !!!
and I will ask to look real vitrovac vitroperm or, if you care about that!

[Orbit]

Gave compatible fgm3 flc100 and sensitivity than?

[Geo]

Yesterday i tried 2 FGM3 sensors. I put them at the same place with the same direction, i suplied them and measured the frequency. What i saw ..... look
The first was oscillated at 100.2khz and the second at 101.5 khz. There is 1.3 khz difference, so how i can null if i will use them at Carl's gradiometer???
For everyone who want to construct the gradiometer, must check the sensors if they work at exactly same frequency

Regards