Metal detector with meter discriminating

[WM6]

Hi rajesh,

your indian detector producer claim

that it can detect Large 1 Rupee Coin at Approx. 30 cm

.... not 40cm

[rajesh]

detection

Coin with 2cm dia in 40 cm ground -not real

DEEP SEARCH METAL DETECTOR

Deep Search Metal Detector is based on the internationally proven principle of low frequency pulse induction for high reliability and operational simplicity. It is suitable for detection of underground ferrous (mild steel and cast iron) and non-ferrous metals such as copper, brass, silver and aluminium.
It can be usefully applied to military, police, engineering, mine, coin searching and treasure hunting. It is ideal for locating buried pipelines, electrical conduits and metal re-enforcements. It may be used effectively in mine clearance.
The control unit is compact, light weight and easily carried in a leather case. It is robust in construction to withstand rough handling and operates at temperatures from sub-zero to 50 degrees centigrade.
The search-head coil has a diameter of 11". A special stick probe is also available for use in dense vegetation and difficult terrain.
This equipment is very easy to operate and no special training is required for its use. Long lasting and rechargeable Nickel/Cadmium batteries are employed to same on the recurring cost of battery replacement. It has a built-in battery charger which charges and batteries over a period of 12-14 hours. External dry battery pack can be provided as an accessory where mains voltage is not available for charging.

• Simple to operate – only one push button for zero reference.
• LED indicators for ON, charging and low battery.
• Continuous sensitivity and volume controls.
• 3 section adjustable telescope pole.
• Stick probe for use in dense vegetation and difficult terrain.
• Fast and accurate location of buried metal.
• Head phones are provided to exclude external noise.
• Batteries give over 8 hours of continuous use on one charge.
• Light weight and rugged design.
• High impact thermoplastic search head and stick probe.
• High-reliability CMOS based circuit design.

Sensitivity :

1) Thumb pin
Approx. 10 cm
2) Cartridge
Approx. 30 cm
3) Large 1 Rupee Coin
Approx. 30 cm
4) Bear can
Approx. 50 cm
5) Hand Grenade
Approx. 90 cm
6) Anti-tank mine (large metal)
Approx. 150 cm

Weight : Less than 1.5 Kg (including batteries)
Dimension : 100 mm x 70 mm x 200 mm

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Coin with 2cm dia in 40 cm ground -not real

[aft_72005]

Sascho,
For deeper vlf detector, KT 315 said me about thunder 4 .
What is your opinion about anker ss60?
Best regards.

I need also circuit which be able detect
coin in the ground Approximately from 40 cm.
Best regards.

[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.

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

[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.

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

[plboy]

to sasho

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

[humhum]

Blagodarya ti sasho

[timimiki]

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

2 стотинки на 25 см

[humhum]

Sasho, kolko e dılbo4inata mu?

[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?