which vlf ?????

[raff33]

Dear Friends ,

- Can any body know a VLF project which detect only gold and reject other metals ?
- is TGSL can do ?
REGARDS..................raff33

[kt315]

the gold does a people slightly crazy on mind, my friend raff33.

[kt315]

AVR3 TREASURE FINDER ROBOT KIT

Descriptions

This treasure finder robot can be used as general puspose metal detector. It will stop and start beeping whenever it has detected the gold nugget. The user can rewrite any required new programme as this robot is run by the AVR microcontroller.

Power supply : 4 AA batteries (not included).

Consumption : 220mA. max.

Detecting distance : 0.5-1 cm. (depand upon the metal size).

PCB dimensions : 2.54 x 1.28 in. (sensor board)

PCB dimensions : 2.54 x 2.70 in. (control board)

Comes with English manual how to use. ( by image easy to understand )

Fully assembled and Tested - enclosure NOT included

[mikebg]

Here is the circuit diagram:

[raff33]

AVR3 TREASURE FINDER ROBOT KIT

Descriptions

This treasure finder robot can be used as general puspose metal detector. It will stop and start beeping whenever it has detected the gold nugget. The user can rewrite any required new programme as this robot is run by the AVR microcontroller.

Power supply : 4 AA batteries (not included).

Consumption : 220mA. max.

Detecting distance : 0.5-1 cm. (depand upon the metal size).

PCB dimensions : 2.54 x 1.28 in. (sensor board)

PCB dimensions : 2.54 x 2.70 in. (control board)

Comes with English manual how to use. ( by image easy to understand )

Fully assembled and Tested - enclosure NOT included

hi kt315,
Smart idea,but this robot needs a special ground to move without problem

[raff33]

ok i need to reject gold and detect silver
please help about vlf project...........................

[mikebg]

Smart idea,but this robot needs a special ground to move without problem

The problem with poor ground can be solved by adding an easily removable fishing rod, but more important is to solve the problem of ferrite rod because it can not provide the depth of detection.