Aka Smart Pulse

[pito]

The conclusion = there is not reliable VDI , and people concern about stability of it, why ?
https://www.geotech1.com/forums/foru...ge3#post424297

[SGS]

I do not know if there is another detector that can discriminate such objects in the ground at such a depth?
https://www.youtube.com/watch?v=DU90a-ejogI

[Riss]

With the iron soldier's helmet, the operator is instructed to approach the probe to the ground just above the helmet - this is obvious! The reactive signal from the ground increases strongly and the helmet registers as an iron target – elementary , Watson. Iron objects with a large area - horseshoes, plows, cans and helmets in the area of the active zone of the DD probe have a "colored" signal. The horseflies and mosquitoes present on the film set -trench (apparently it was hot) were very impressed with this test...However, I got cardiac arrhythmia, hiccups and tics from this horrific video https://www.youtube.com/watch?v=sglhw9ERh3U

[moodz]

Oh what a disappointment!
There are several reasons why I have now completely dropped this detector from the plans!
"Molded part"!??
Why that?
If I get angry I'll put it in methylene chloride and in a few hours it won't be hidden anymore, why the nonsense?
Why are the pins bent and the several chips counter soldered?
What kind of nonsense is that!?
Quite a frivolous approach and quite serious claims and an even more serious price!
With all that (which indicates the complete frivolity of the one who did it); in "countless" video demonstrations I have yet to see behavior on masked targets...
But now that I saw how frivolously it was done; I'm not even interested in anything about this detector anymore, it's obvious that it's just stupidity... for a lot of money!
Thanks for the pictures of the interior! They helped me eliminate all dilemmas.
...
The "enormous depths" shown on the naively recorded video demonstrations remind me of the Atlantis Imperator, some xx years ago, a crap made in Turkey,
which on very clean soil turned out to be the deepest in history... and in real conditions as a totally unusable piece of garbage.

There is actually a bit more information from examining the picture ... you can see two diodes hidden partially by the two switching transistors and also there are three silver wire connections to the transmit coil ... it looks like a centre tapped probably colinear wound tx coil.
The diodes block the negative going flybacks from the NMOS fets. driving each end of a centre tapped coil.
So its bipolar transmit.

The white wires are the RX connections.

The black blob is hiding the timing circuit ... probably some sort of $5 micro / arduino.

Then the there are 3 reversed chips that look like they are set up as a discrete diff amp and the ouput goes back to the blob / micro so it can do something.

The chips are most likely reversed because
A. they were meant to be on the other side of the board ... but someone in mechanical design did not talk to the PCB layout guy and the chips would then foul the clearance where the controls go thourough the case.
B. they already ordered a whole boatload of boards from china and couldnt take a hit to rebuild them all.

There is no power circulation of the flybacks ... so the TX isnt super efficient but would be able to punch down to the claimed depths.

moodz.

[Riss]

really ,, they already ordered a whole boatload of boards from china‘‘moodz ?compliments on your comments and sharp eagle eye According to my humble knowledge and the pictures of the oscillogram, all the energy accumulated in the coil at the end of the half-sine pulse is stored in the capacitor (which is probably in the probe) during the pause, and the inevitable jitter is "picked up" with a damping resistor.Let ivconic confirm that the effectiveness of a detector depends on many things, the most important of which is its discrimination in the soil, not the terrifying depth (we are Europeans - ceramics, slag, remains of hearths, sometimes mineralized stones and always - a lot of iron garbage, some over 2500 years old). Right, ivconic?

[ivconic]

There is actually a bit more information from examining the picture ... you can see two diodes hidden partially by the two switching transistors and also there are three silver wire connections to the transmit coil ... it looks like a centre tapped probably colinear wound tx coil.
The diodes block the negative going flybacks from the NMOS fets. driving each end of a centre tapped coil.
So its bipolar transmit.

The white wires are the RX connections.

The black blob is hiding the timing circuit ... probably some sort of $5 micro / arduino.

Then the there are 3 reversed chips that look like they are set up as a discrete diff amp and the ouput goes back to the blob / micro so it can do something.

The chips are most likely reversed because
A. they were meant to be on the other side of the board ... but someone in mechanical design did not talk to the PCB layout guy and the chips would then foul the clearance where the controls go thourough the case.
B. they already ordered a whole boatload of boards from china and couldnt take a hit to rebuild them all.

There is no power circulation of the flybacks ... so the TX isnt super efficient but would be able to punch down to the claimed depths.

moodz.

Anyway; such details do not give the impression of seriousness.
Although tests on clean ground are impressive.
But in real life such tests are meaningless.
It is not my intention to belittle this model with these comments.
But it should be tested in serious conditions, in order to get an impression of the real utility value of that model.
A rally is being organized in Bulgaria soon. I have a couple of friends in Bulgaria who will be attending there.
If the promoter of this detector allows; they will insist on real testing and give me their impressions later.
Without intending this to sound like prejudice; I don't have high expectations.
Because I have been listening and watching similar examples for almost 40 years.
The harsh truth always remains the same; only the super "big" and the super "serious" mean business.
And today in the world we have only two such "players"; Minelab, far above everyone and XP in second place.
Everyone else is wormy peanuts... sorry for my bad french!

[ivconic]

Daimler-Benz, today "Mercedes" and BMW are serious players.
Audi, Volkswagen and Opel are right behind.
The French and Italians used to make good cars. 40-50 years ago. Today they make suicide cans.
And all the rest are also tin cans made for voluntary suicides...
That's how things are in Europe.
In the world... Nissan and Toyota are the most serious players.
Koreans have interesting solutions. They are not bad.
American bulky bins are a separate story.
No normal person outside the USA buys that garbage.
Electric cars...! Hahaha! I'm going to pee myself laughing!
It is difficult to find a bigger mistake in the history of mankind!
And the situation is similar in the world of metal detectors.
Only with a much shorter list of "players".

[SGS]

Posted by a Ukrainian living in France. A silver watch found on the ocean shore 50cm deep in the wet salt sand.
And many more similar reviews from people for whom it doesn't matter who thought what about this detector.

[ivconic]

LRL dowsing has survived as a human activity since prehistoric times.
Why?
Well, it sometimes happens that someone manages to "locate" something with dowsing rods and similar devices.
The "fact" that someone somewhere found something with "something"... a very strong argument!
At the same moment, I changed all my life attitudes when I heard about that fact!
And now I have decided: I BUY!
....
....... Minelab....!

[SGS]

I wouldn't laugh at anything until I got to know it in detail. That speaks of immaturity! What you have decided is your personal business and hardly anyone cares.
Smart people are mostly interested in the performance of a detector. Others look at how beautiful or how intricately made it looks.
What in the sense of walking with a beautiful toy, with which I will return with empty pockets?

[Riss]

LRL dowsing has survived as a human activity since prehistoric times.
Why?
Well, it sometimes happens that someone manages to "locate" something with dowsing rods and similar devices.
The "fact" that someone somewhere found something with "something"... a very strong argument!
At the same moment, I changed all my life attitudes when I heard about that fact!
And now I have decided: I BUY!
....
....... Minelab....!

LRL dowsing is based on this effect - https://en.wikipedia.org/wiki/Quantum_entanglement

[ivconic]

I wouldn't laugh at anything until I got to know it in detail. That speaks of immaturity! What you have decided is your personal business and hardly anyone cares.
Smart people are mostly interested in the performance of a detector. Others look at how beautiful or how intricately made it looks.
What in the sense of walking with a beautiful toy, with which I will return with empty pockets?

Sound offended?
Are you one of the co-authors of that rocket?
You will agree, I hope, that this detector should be subjected to serious tests?
What we have seen so far in the Youtube demos are not serious tests.
Uniform clean soil... that's not a good test.
Such "tests" are primarily subject to forum humor. Without any evil intention.
Because ancient sites are mostly found on highly polluted soil.
With many small pieces of rust, hotrock, blacksand, broken ceramics, etc.
Today, most valuable finds are found below such layers.
Pure uniform soil has long been explored and ravaged by older and more modest models of metal detectors.
A detector that is "deep" on a clean coil; it usually doesn't end up famously on the right sites.

[Riss]

can Minelab Manticore register coins in "discrimination" mode when running on pure magnetite black sand or at least under granite paving stone (a standard neodymium desktop hard drive magnet sticks weakly to pavers) ? the pavers are approx 12cm long and about 10 cm thick. at the same time, he have to throw an iron nail - about 7 cm long at least 25 cm - into the air. https://www.youtube.com/watch?v=u6Mt5zCIHzY

[ivconic]

A Manticore owner might be able to answer that question.

[moodz]

The poor construction of the smartpulse is a clue to the true professionalism of the designers / suppliers. The design is OK but the hardware is not worth the money ... It's certainly not going to last if you use it at the beach.