SNIFFER XR-71

[ivconic]

Answer to Geo

Geo,
good for U !
If Your device works stabile...just fine.
If You please go with it outdor on the field and try it, and than post
some results to me(or us here).I would be very interested to see those
results.For example You try it on 3 items: 1 coin, cola can and a bucket.
On the ground and after in the ground. With a conventional coil from
10cm to 40 cm diameter , not 1mx1m !!! If Your results are satisfied then
I'll be first to make that device at once. But You have to be fair in report!
For that construction thing....well as I said before I am not really good
constructor at all, but I do have some expirience with detectors, especcially
outdor on the field...(for some 20 years and a few(50-60) machines so far)...
best regards Geo!
Of course take it easy, no hard feelings...

[ivconic]

SOmethin else


I almost forget...
Geo ar U a Greek?
I lived on Creta island in 1992./93./94.
Visited many locations there....I used to speak Greek languange very well at the
time....but I forgot it almost completly...
regards again
ti kanis kala ise?

[ivconic]

Pi shark

[Geo]

Hi .
First for Esteban. Thanks Esteban you post it before. I am looking for a full owner manual to see what proposes for the regulation of detector.

Now for Icconic.

Geo,
good for U !
If Your device works stabile...just fine.
If You please go with it outdor on the field and try it, and than post
some results to me(or us here).I would be very interested to see those
results.For example You try it on 3 items: 1 coin, cola can and a bucket.
On the ground and after in the ground. With a conventional coil from
10cm to 40 cm diameter , not 1mx1m !!! If Your results are satisfied then
I'll be first to make that device at once. But You have to be fair in report!
For that construction thing....well as I said before I am not really good
constructor at all, but I do have some expirience with detectors, especcially
outdor on the field...(for some 20 years and a few(50-60) machines so far)...
best regards Geo!
Of course take it easy, no hard feelings...

I believe that PI machines are very good with large coils. With 20..30 cm coil and out of water you can use an IB machine who have good sensitivity at small objects and very good discrimination. I do not like to looking for coins or other things because here in Greece it is prohibited. But for educational reasons the next month i will try a true test at a field and to write at forum.
I have not any reason to not do a fair report. I just constructed a machine for my hobby not to sale it. My hobby is the construction of metal detectors.I have construct a lot of machines the last 30 years so i believe that i am in place to understand if a detector is good or bad.

I almost forget...
Geo ar U a Greek?
I lived on Creta island in 1992./93./94.
Visited many locations there....I used to speak Greek languange very well at the
time....but I forgot it almost completly...
regards again
ti kanis kala ise?

Yes i am from Greece and live at a small town.Creta is a very nice island. I lived two summers for holiday.
se poia poli isouna? Sta xania(souda) , sto iraklio sto rethymno h ston agio Nikolao? Na exeis mia kalh mera.
And in English: To have a good day

btw: sorry but i am very old to try to learn better English.This is a work for children!!

[ivconic]

Sto kalos !


Dont' worry Geo, Your english is fine. I lived just in Chania for 3 years!
About Your post, I do agree with U 100%.Me my self, I do occasionally some
constructions just for hobby and love for that matter-metal detectors.
Some of them work fine, some of them not....well that's life. I do have a
few commercial models, they are very usefull but still something itch me to
made by my own some other model.About coins...well mostly coins are my passion. I had some founds on Creta even it was prohibited! Why? Well,
because I think that is much better any body to find them and dig, than nobody
ever. No big use from prohibition if state do nothing else...
Regards...

[aban]

PSll

Hi,the puls star l and ll have kinds of versions 1 and 2 and 3 to up.I have some version of it`s shematic and pcb.I upload some files one of the versions.

[ivconic]

Hi Aban


Hi Aban,
did U make one of this? I U have a schematic of any of Pulse star U mentioned
but without any speciall IC like MC68h... or Pic... I mean with conventional
concrete elements , so we can build it, why don't U post it here. Arguing with
good Geo I get idea to start all over again to build one PI. Because I left that
principle of MD some years ago.As I mentioned I made a XR71 or Delta Pulse
a years ago and I didn't like it at the time. Last couple years I build only IB's.
But if I had a good schematic of PI I would like to build it.I have PS II, pics
posted here.I am interested of maybe earlier design of PS but as I said without
some spec.components.
regards

[Geo]

About coins...well mostly coins are my passion. I had some founds on Creta even it was prohibited! Why? Well,
because I think that is much better any body to find them and dig, than nobody
ever. No big use from prohibition if state do nothing else...
Regards...

I agree with U 100%.
Now about PS II . If u look at the meter it says Discrimination. So it must be a version with microprossesor? I am not familiar with PIC ..AT90s.. so i can not build one of them. Aban may tell us about the versions of PSII that he have. At the forum there is a schematic of PS with 2 meters. Can somebody say to me what is the second meter?

[aban]

PULS STarll

OK,I would glad to upload information about these detectors in the froum.I said that the psl and ll have versions with kinds of action to detect the objects.I have some versions of them and i`ll load some of it in the froum.Version 3 to up can discriminates ferous and noneferous carefully like LORENZ deepmax with 700-1300 pulse per second.We can design the samplying and op-amp section to discriminate the F and NoneF metal object.

[Geo]

OK,I would glad to upload information about these detectors in the froum.I said that the psl and ll have versions with kinds of action to detect the objects.I have some versions of them and i`ll load some of it in the froum.Version 3 to up can discriminates ferous and noneferous carefully like LORENZ deepmax with 700-1300 pulse per second.We can design the samplying and op-amp section to discriminate the F and NoneF metal object.

Hi Aban.
How the PI can discriminate? If we play with sample then we increase the ability to reject some small metals. This is no discrimination. Can you tell us how PSII disc the metals? Who are the parameters that the new digital PI detectors uses to discriminate the metals? Do you have any block diagram of a PI disc section?

[ismail surek]

hi aban

hi aban
thanks for pcb
can you send me pulse star 1 and 2 s shematic or add here
we didn't understand to IC name

please send me
[email protected]

[Unregistered]

help

Any body can send me a both sides(but separate) of pcb for XR71?
I would like to try to make it.
Or any other good PI project.Even is better if it is one sided pcb.
my mail is:
[email protected]
Thanks in advantage.I want to exchange schematic....

[aban]

DISCRIMINATE IN PI DETECTORS

PI systems can discriminate the metals ,i tested some of them:PSll and LOrenz and Goldfish2 pi detectors.The main role in this filed is the time of going to zero the voltage of the pulses and we must convert this time and period to voltage or frequency.This is kinds of parameter for ferous and noneferouse metal object in the time of refelected pulses and out put of Op-amp for example this time for gold X microsecond and for iron Y microsecond.

[FLEX]

GOLD FISH 2

Hi Aban,

i know PulseStar II and Lorenz 3 & 5. What is Gold Fish 2 ? Is it PI detector? Please send us some links and pictures of GoldFish 2 PCB. Have you some info about this device - PCB or schematics ...

Best Regards: FLEX

[aban]

GOLDFISH2

Yes,it is pi disc detector and it can detect at 5.5 meters in the ground.