Metal detector with meter discriminating

[sascho-bg]

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

[aft_72005]

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

[sascho-bg]

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

[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

Next | Back

Home | Products | Feedback

All contents Copyright © 1999, Arihant Enterprises. All Rights Reserved.

[WM6]

Hi rajesh,

your indian detector producer claim

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

.... not 40cm

[Micheal]

minelabs can detectect coins at good depth...why dont you post something good that works at good depth and is worth making....rather than wasting everybodies time...If a pulse induction cant find a 2cm coin at 40cm then throw it in the rubbish and dont post it here,its not worth making and we all know that....sorry guys to be rude but I have read maybe hundreds of pages on the forum and enough is enough too many poeple are posting rubbish.If you guys have something good with all the details like PCB proper parts list with the parts placement diagram then post it otherwise keep it to yourself ,this site is for sharing good things not rubbish

[mosha]

gerber file or OCAD

please send me the gerber file or OCAD for this detector if any body has to:

[email protected]

best regards,

[zixelll]

I love the pictures and I will not open it again lets doc circuit thanks

[6666]

This is my schematic from 1992 year. Works better from many modern detectors:

Does anybody still have the schematic from first post ?

[galaksi]

images from saho-bg 20070523 without mistakes

[scs]

Working schematic

[WM6]

Thanks Sasho

What tunning procedure you suggest?

[scs]

Coils is fixed to a minimum output signal op 1 .Regulator amplitude of the compensation coil must be at minimum.The detector detects very deeply coins.

[6666]

Working schematic[ATTACH]35924[/ATTACH]

Thank you Sasho.

[scs]

Improved oscillator.