Manta Metal Detector

[Asgard]

Here is a new technology MANTAMETALDETECTORS.COM

BI - MAGNETIC - COIL TECHNOLOGY

This will avoid the deposits of patents, I published here and elsewhere ....

I also filed in France.



This 2 coils are wound together for maximum coupling !
The first in one direction and the other in the opposite direction.

First coil sends and receives the second coil flyback

Second coil send only and receivesthe first coil flyback (but is not analysed)

The two coils have the resonance that armonise.

The second mosfet cut through its diode...

With a very good coil I can start at 6us delay (with a very good shield)
With this system I start at 9µs ..(with a very good shield) It's nice !

First pulse 1 = + V + GROUND EFFECT (g)
then pulse 2 = - V + GROUND EFFECT (g)

reception was Pulse 1 rx = + V + s or "s" is ground effect
then Pulse 2 rx = + -V + s

then by (pulse 1 - pulse 2) it gives + V + V + g - g = + 2V and "g" has disappeared !!





The system works perfectly and does not alter the analysis when compared with a single coil!

The electronic components in this schematic are not well on the components used on my product.

This system is better than US9285496B1 Patent of CARL / Less capacitance, lower noise, best heat dissipation, faster delays, etc ....

Alexandre

[Asgard]

Here is a new technology MANTAMETALDETECTORS.COM

BI - MAGNETIC - COIL TECHNOLOGY

You're focused on how to do with a coil, H-bridge, alternating current generator etc ... but the simplest solution was to return the coil and not return the current with electronic assembly !

Oscilloscope :







Alexandre

[daverave]

Hi Alexandre....for my latest project im using round plastic enclosure with copper foil on the inside...i have no mosfet heat sink as my transistor runs only warm...using a 12" coil i can detect a 9ct gold wedding band at 20" whisper with moderate gain.... can your BMC product reject small iron at good depth ????

[Asgard]

Hi Alexandre....for my latest project im using round plastic enclosure with copper foil on the inside...i have no mosfet heat sink as my transistor runs only warm...using a 12" coil i can detect a 9ct gold wedding band at 20" whisper with moderate gain.... can your BMC product reject small iron at good depth ????

All ferrous on all depth, mute or multitone.

Palladium ring 3 grs surrounded by iron + volcanic sand up to 13 " Very quiet !

Palladium ring 3 grs in the volcanic sand without iron up to 17 " Very quiet !

Recovery speed iron/gold/iron -> 0" !!!!

Alexandre

[daverave]

do you have a youtube demo of your latest BMC detector ???

[Asgard]

do you have a youtube demo of your latest BMC detector ???

Yes but in french and it's private youtube for the moment... Sorry, I soon publish videos for this forum.

I also have comparative videos.

Just a few years we did a lot of tests including the eric material for fun



Alexandre

[ivconic]

Yes but in french and it's private youtube for the moment... Sorry, I soon publish videos for this forum.

I also have comparative videos.

Just a few years we did a lot of tests including the eric material for fun

[ATTACH]36196[/ATTACH]

Alexandre

Would be interesting to see videos.

[ivconic]

[ivconic]

Can it be adjusted to remain silent while searching?
Or to lower down this strong annoying (brain damaging) treshold?
Give here more infos, more details.
Can you show video with no treshold or very low treshold at audio?

[Asgard]

It's not a good video, it's not the same version...

you will not find it on youtube videos are private

silence search :

[ivconic]

It's not a good video, it's not the same version...

you will not find it on youtube videos are private

silence search :

Ce n’est pas mal... not bad at all!

[daverave]

Bravo Bravo Bravo !!!! Excellent demo video !!!! did you design the detector yourself or others with you ????

[Asgard]

Merci ! Thanks, It's my job (hardware & Physical Magnetic Field / low frequency and pulse)

Currently I work in research in the field of UHF rfid for a very big private compagny but I developed metal detectors since the age of 14 and I am 35 years old.
I also worked in industry and french military electronic development.

I spend 40 hours every week in addition to my work on the metal detectors.
I worked alone on over 35 versions and models.
Currently we are working to 3 people, tinkerer, willy.bayot and me on new revolutionary technologies.

It is not for commercial purposes, for the moment this is for fun.

I have already developed many other innovative project!

This board has 6 layers with a pic32mz....

Normally on a 18k gold ring of 3 grams, I detected 10 to 15 cm below the goldscan 5c latest version at the beach on normal wet sand.

Alexandre

[6666]

Merci ! Thanks, It's my job (hardware & Physical Magnetic Field / low frequency and pulse)

Currently I work in research in the field of UHF rfid for a very big private compagny but I developed metal detectors since the age of 14 and I am 35 years old.
I also worked in industry and french military electronic development.

I spend 40 hours every week in addition to my work on the metal detectors.
I worked alone on over 35 versions and models.
Currently we are working to 3 people, tinkerer, willy.bayot and me on new revolutionary technologies.

It is not for commercial purposes, for the moment this is for fun.

I have already developed many other innovative project!

This board has 6 layers with a pic32mz....

Normally on a 18k gold ring of 3 grams, I detected 10 to 15 cm below the goldscan 5c latest version at the beach on normal wet sand.

Alexandre

Sounds very interesting thanks for sharing, with your testing of gold ring, can you also include a coin test, as rings can vary so much but coins stay the same and the test can be reproduced.

[treasurediver]

Merci ! Thanks, It's my job (hardware & Physical Magnetic Field / low frequency and pulse)

Currently I work in research in the field of UHF rfid for a very big private compagny but I developed metal detectors since the age of 14 and I am 35 years old.
I also worked in industry and french military electronic development.

I spend 40 hours every week in addition to my work on the metal detectors.
I worked alone on over 35 versions and models.
Currently we are working to 3 people, tinkerer, willy.bayot and me on new revolutionary technologies.

It is not for commercial purposes, for the moment this is for fun.

I have already developed many other innovative project!

This board has 6 layers with a pic32mz....

Normally on a 18k gold ring of 3 grams, I detected 10 to 15 cm below the goldscan 5c latest version at the beach on normal wet sand.

Alexandre

Is there a waterproof version of the MANTA detector for diving in the ocean available?