TGSL Experiments

[salih]

help

hello to all
my MD tgsl in Air test I Get 30 cm for coin 2.2cm in all Metals or in VLF its same.
I went to the test Tgsl on Field ( coin 2.2cm)
In the position VLF, on max sensitivity I Get 15cm Deep in the ground
In the position all Metals I Get 20cm Deep in the ground
Is this really Results tgsl in Field
I need ideas Please
Greetings

[simonbaker]

Exactly!
I haven't seen feedback coil too!
Yet i presume it was already included (and conjoined) with RX coil...
Shield is obviously black layer inside both covers. Most probably graphite powder, sprayed earlier.
I laughed when saw hand holding twisted can and pouring epoxy - same as i do!
Each time i make coil - i bust some can and few "drops" of epoxy.

I laughed at that pouring too because it was very skillful, I guess they couldn't make a machine to do it as well. I could never pour so perfectly though.

The coil winder seemed funny also -- was it my imagination, or was there a kind of unsteady wobble going on?

-SB

[ivconic]

Whet's your appetite for more details. I don't think they mentioned the bucking coil at all, but there must have been one.

-SB

Exactly!
I haven't seen feedback coil too!
Yet i presume it was already included (and conjoined) with RX coil...
Shield is obviously black layer inside both covers. Most probably graphite powder, sprayed earlier.
I laughed when saw hand holding twisted can and pouring epoxy - same as i do!
Each time i make coil - i bust some can and few "drops" of epoxy.

[ivconic]

Just watched the video three times and have a few thoughts:

The glue on the wire activated by the alcohol is a neat twist on the method the dfbowers posted on here. There must be source for that type of wire.

Oven is fairly low temp since the coils are on a piece of cardboard probably 150 - 200 degrees F.

The coil testing with the scope was the most interesting of all. The machine must have been true non-motion mode. Makes me think about building a non-motion detector just for coil testing.

Very Interesting! Thanks for sharing

Jerry

Yes, that's was what also attracted most of my attention too!
Very nice to join windings like that and fix it in nice shape.
I wandered about wire, but Altra already founded answer! (Thanks Altra!)
Machine is not necessary to be non motion, because the very same behavior is with motions too, when observed on scope.
Scope is 2 channel. If you have it - just hook up any available detector and you will see.

[simonbaker]

Found this on Youtube. I think all their R&D is done on this forum

http://www.youtube.com/watch?v=EA3aXkc6t64

Whet's your appetite for more details. I don't think they mentioned the bucking coil at all, but there must have been one.

-SB

[Qiaozhi]

Qiaozhi,

Notice when the lady places the TX coil in the white housing the inside is black! They cut out the first epoxy pour, nulling and 2nd shielding. They show the second epoxy pour on top of the second layer shield. Think of a sandwich.

Well spotted.
I hadn't noticed that.

[Jerry]

Hi Jerry,
The wire is known as "bondable" magnet wire. Its hard to find in small quanities or on ebay. Minimum order from factory is 6in spool or about 10lb.
See this link. "PN Bond #1"

http://www.mwswire.com/inschar.htm

As for the testing he has one scope channel on TX output to the coil and the other channels hooked up to the output on the preamp. No need to build a non motion circuit.

Hi Altra:

Will check that out.
On the scope test I was over analyzing it a bit. Makes perfect sense.

Thanks

Jerry

[Altra]

Qiaozhi,

Notice when the lady places the TX coil in the white housing the inside is black! They cut out the first epoxy pour, nulling and 2nd shielding. They show the second epoxy pour on top of the second layer shield. Think of a sandwich.

[Altra]

Hi Jerry,
The wire is known as "bondable" magnet wire. Its hard to find in small quanities or on ebay. Minimum order from factory is 6in spool or about 10lb.
See this link. "PNB Bond #1"

http://www.mwswire.com/inschar.htm

As for the testing he has one scope channel on the TX output to the coil and the other channels hooked up to the output on the preamp. No need to build a non motion circuit.

[Jerry]

Just watched the video three times and have a few thoughts:

The glue on the wire activated by the alcohol is a neat twist on the method the dfbowers posted on here. There must be source for that type of wire.

Oven is fairly low temp since the coils are on a piece of cardboard probably 150 - 200 degrees F.

The coil testing with the scope was the most interesting of all. The machine must have been true non-motion mode. Makes me think about building a non-motion detector just for coil testing.

Very Interesting! Thanks for sharing

Jerry

[Qiaozhi]

Found this on Youtube. I think all their R&D is done on this forum

http://www.youtube.com/watch?v=EA3aXkc6t64

The tests with the oscilloscope are confirmation of what we already know.
The timebase appears to be set to 10us/div, giving a TX frequency of approximately 10kHz. This is probably a Bandido they're using for the testing. You can also see the initial phase offset of about 22us; which equates to an offset of 202us for a DD coil. Notice they didn't mention anything about the Faraday shield, as I guess they didn't want to give away all their trade secrets.

[ivconic]

Ivconic,

They are waiting for your final version of the IGSL

You are holding up production for Christmas sales. Hurry please!

IGSL's power drain is HUGE comparing to new Tesoro standards, because their newer models are really nice machines and drains much much less at the same time with better performances.
So i think IGSL will not be so interesting for such manufacturers as Tesoro.
But i will like to see "double" Tejon with same philosophy as is presented at IGSL.
Would be mighty machine indeed.

[Altra]

Ivconic,

They are waiting for your final version of the IGSL

You are holding up production for Christmas sales. Hurry please!

[ivconic]

Found this on Youtube. I think all their R&D is done on this forum

http://www.youtube.com/watch?v=EA3aXkc6t64

I watched it with huge interest and satisfaction!
Thanks for posting it!

[Altra]

Found this on Youtube. I think all their R&D is done on this forum

http://www.youtube.com/watch?v=EA3aXkc6t64