Delta Pulse

[kt315]

hello evrybody! i just want to know if there is a latest improvement of the turkish delta pulse design?

you mean digital turkish version? then you go

http://www.geotech1.com/forums/showthread.php?18206-PIM-2-Digital-Metal-Detector-Project/page14&highlight=pim

[jladre]

hello evrybody! i just want to know if there is a latest improvement of the turkish delta pulse design?

[kt315]

many times answered. more actively use GROUND BALANCE pot (SECOND SAMPLE DELAY). normal is slight change
of sound if you hang up the coil far of ground. while this is normal thing for ALL TYPES of true SAT static non-motion detector, to be IB-VLF or PI type, but you so surprised why on DP.
if you hang up a coil of Whites Classic in ALL METAL mode you get the same. read manual and you
will see that balance on ground means 5 cm of distance from ground you do, but not 20 or 30 and more -!
if you do not want the sound was change so make another, 'motion', type detector and ignore DP.

[eclipse]

Has anyone noticed for example when working with large coil 1x1, when there's slight change (10cm or so) of the distance between the coil and ground there's need to use the Reset button. Can we call this instability or it's just the normal way the device works? If working on uneven terrain it gets boring to constantly reset.

[kt315]

one question. why those guys ask constantly how retune DP on gold nuggets but not ask how retune Pulse Star, Lorenz Pulse 5, bulgarian Puls Star?
no schematics? no! - hammerhead, MPP, surf pi, bara - MASSIVE TO LEARN! but they again and again ask only in DP thread. THAT IS BAD!

[Jose]

Hello KT315
What I'm trying to say is that the Delta Pulse, hardly can have performance with detectors specially designed for detecting small nuggets of gold, these detectors respond well to about 10 microseconds, where the delay control is set and the front preamplifier is designed to respond to these values.
Logically I am referring to small nuggets of a few grams.
I have no gold nuggets for the tests, but I can mention one example.
Com my GS4, working the delay in about 12 or 13 microsecond, can be detected in the air for a gold engagement ring, about 38 cm.
My DP adjusted with the delay, about 18 microseconds, the same ring, we can detect some 30 cm or more in the air.
Could adjust the DP about 15 microseconds or less, but improvement is not obtained and becomes noisy, for the reasons mentioned in the previous post.
It is hoped that these differences are accentuated, with decreasing size of the object.
But if I make the measurements with a bronze coin, the two detectors has almost the same performance, with the settings above.
These distances above depend on many factors and may vary, but serves as example.
Regards
Jose

[kt315]

I still offer to SAY WHAT gold you mean. if you mean 500 gramm gold mask then DP is sensitive to it. if you mean gold NUGGET so write WHAT SIZE of the nugget you mean.

[Jose]

I would like to clarify a few points for those trying to adjust the DP to make it more sensitive to gold.
It is true that changes may be made to take the first sample to 10 microseconds.
However, pimera preamplifier stage, must also be fast enough, and in practice, I have found that in the DP, the front stage as it is called, has a minimum of about 17 or 18 microseconds.
So there is a limit imposed by the response of the front stage, which I understand is for the design of the DP.
For this reason the PI detectors designed to have a quick response, are usually designed with two stages front, just to decrease the response time.
It is true that these issues were discussed many times, but we fans always have doubts and appreciate those who are willing to clarify.
Jose

[kt315]

many times was written in this thread. you may decrease MAIN SAMPLE DELAY by decreasing R7 and C4=1nF to 10-12usec, at min pot position meant. also you
may decrease SAMPLE WIDTH by decreasing C5=1nF. PLEASE MORE NOT ASK HOW TO RETUNE DP ON GOLD. this matter IS CLOSED

[pigeon]

THANK YOU

.... Delta Pulse was not designed to be sensitive to gold, but for medium and large objects. You can reduce the delay a bit, as discussed before, but has a slightly slow response.
Delta Pulse is excellent for large coils.
For gold is better Minipulse, Surf Pi, Goldscan 4, etc. etc..
Jose

[Jose]

hi

no answer

.... Delta Pulse was not designed to be sensitive to gold, but for medium and large objects. You can reduce the delay a bit, as discussed before, but has a slightly slow response.
Delta Pulse is excellent for large coils.
For gold is better Minipulse, Surf Pi, Goldscan 4, etc. etc..
Jose

[pigeon]

hi

no answer

[pigeon]

Hi all
Delta pulse is not sensitive for gold.what?

Thank you

[mege59]

hey! LOOK YET THE VIDEO AGAIN - ALL WORK! no claims to me now you are unserious man.

Write a private message!!


I ask you questions,, I want to help..


what did you do?..


I sent you private messages you showed everyone!

[kt315]

this is last test I do before it will be shipping to mege. you are witnesses.

hi,I receive my package today,thanks
I can not run the circuit,
You can not isolate the coil cable as well
coil cord tightly with tape not well (
later realized as long as the coil cable short circuit
crystal tape stopped burned smoke output circuit...No audio circuit?
Do you think electronic circuit was damaged? or Where it is damaged?
.....

How do I attach the coil circuit
should be few ohms? Please write to me necessary measure coil
30cm, 60cm1x1 and 2x2 dimensions and coil resistance value should be what?
Please help me, I feel so bored I'm so sorry

hey! LOOK YET THE VIDEO AGAIN - ALL WORK! no claims to me now you are unserious man.