Delta Pulse

[brabra]

In the first programing was Ok,after reprogramming has become a problem

[liudengyuan]

Hi, who knows Delta Pulse 1mX1m coil probe, how far his research on a Coke can, which friend can you give me PCB files, thank you, my mailbox [email protected]

[nando.22]

cais Quais d'Orsay como dimensoes da placa parágrafo Montagem

[Qiaozhi]

cais Quais d'Orsay como dimensoes da placa parágrafo Montagem

Please read the forum rules and make your posts in English.

[nando.22]

diameter of which pcb for printing

[kt315]

Hi, who knows Delta Pulse 1mX1m coil probe, how far his research on a Coke can, which friend can you give me PCB files, thank you, my mailbox [email protected]

you do the mistake again. coke can is very small target for 1mx1m coil if you want know the real depth possibility of a deeper.

[maikl]

you do the mistake again. coke can is very small target for 1mx1m coil if you want know the real depth possibility of a deeper.

So with the 1mx1m coil cannot detect "gold bar" (similarly as in the picture), just something big, such as a military tank...

[nando.22]

10000UF capacitor may be substituted with lower value

[Jose]

nando.22
Using the diagram on page 78, Post No. 1932, C31 and C32 is mf 4700, is susficiente.
Otherwise, you can place two capacitors in parallel mF 4700 (2X4700).
Follow the advice of KT315, place a plate blindage the under PCB, as seen in the post Nº 1528, the detector is more stable especially with coils 1X1 m.
regards Jose

[Waka]

HELLO, anyone can tell me where to find this circuit LAY format?



thanks

[Jose]

Hi Waka, Emailed.
Jose

[hg1898]

Who can help me delta I do pulse no depth of 32*35 box,1MM line 1M*1M=16 ring coil. Only 150CM can be detected, R1 470K C1 22NF. 125HZ. How to adjust the frequency without user

[hg1898]

My English is not good with Google translation

[maximusdesmus]

I have a problem with my delta pulse pcb.The coil is 28cm 2.5ohms i detect gold ring at 23cm in air,one euro coin 25cm clear signal,coke can 45cm,paint can 57cm.

Detector works well except one problem and i post video of lcd together with the picture of my pcb.

The problem is when i turn noise pot over the first half of the whole turn for better detection the red led also brightens up and detector just beeps once then gets silent and stops detecting and irf740 starts warming, so when i turn the noise to lower again it starts working normally.
Also one more thing that may be important the 9v1 zener gives me 8.85v when working normally and 8.2 when this problem occurs.
Dumper is 1K.
I have looked for mistakes on my pcb but couldnt find any.
I gratefully hope someone on this forum can help me fix this ,here are the pics and vid. of delt working normally when noise is not high:






http://www.youtube.com/watch?v=uoduG1ExvgI

[alonejax]

hi to all
i made this delta pulse but dosnt work
i have sound , 250 hz & 19 cm coil 30 turn 0.45 with 3.4 ohm
i used 12v 4A for sourc capacitor
first i have coil with 15 turn of .45 with 2.5 ohm but when i start multimeter show 4Amper use! and
my red led & green led was on. i turn off fast
then i chang my coil to 19 cm coil 30 turn 0.45 with 3.4 ohm.
now my delta is on & have sound but dont sence any thing
i used lf357 & irfp460
please help me. thanks a lot
[email protected]