Metal detector with meter discriminating

[Duncan]

PCB?



Hello Sasho,
Please can you tell me:-
Do you have a PCB layout/pattern for this detector?
Are any (or all) of the coils fitted with Faraday screens?

Best wishes

Duncan

[sascho-bg]

Receiver and transmitter coils fitted with Faraday screens. Trans. coil is only one coil with four outputs.Res. coil is with two outputs.

[Duncan]

PCB?



Many thanks Sasho, that was most useful information.
Do you have a PCB layout/pattern for this detector?

Best wishes

Duncan

[Ultimate_Haze]

Hi

Receiver and transmitter coils fitted with Faraday screens. Trans. coil is only one coil with four outputs.Res. coil is with two outputs.

Hi,
Sasho.
I cant understand?
How you conect this coil?I see two coils L1 TX and L2 RX this are 4 wires and 2 for shields.
But how do you conect those?If you can please post simple picture?
I see on schematic that there are two 25 turns one 70 and one 120 turns.
Thanks

[kiki]

6 wires+shields cable

[Ultimate_Haze]

Hi

Hi,
I still cant get this ?On picture I see OO coil!This mean 4 wires and 2 shields?@?@?!?!?!
But most interesting for me is why they are labeled this way?
Thanks

p.s.have you made this detector?

[humhum]

Sasho, kolko e dılbo4inata mu?

[сашо-бг]

2 стотинки на 25 см

[timimiki]

zdr sacho!na shemata vlf metaldetektor 2006 op10 i op11 sa lm339 no 8pin??ima li 8pin lm339??

[humhum]

Blagodarya ti sasho

[plboy]

to sasho

hi sasho it is eassy and interesting shematics, but what about discriminate. Do you have a good diskriminte, and what 12kHz

[Сашо]

To Unregistered:
Майната ти тъпа.
With kind regards.
Sascho-bg

[aft_72005]

Hi Sascho
Please more explain how performance you reached with this detector?
For example, deep test for coin with 2cm dia in air and ground.
Is it woks stable? And also discrimination…?
Best regards.

[sascho-bg]

Coin with 2cm dia in ground-25cm.
Work stable.
Good discrimination.

[aft_72005]

Hi Sascho
Thanks, I am be glad see you again in this forum. in my opinion all of
Your circuit was Interesting. I need circuit which be able detect
Coin in the ground Approximately from 40 cm.
Are you any suggestion circuit in the matter?
Best regards.