TO ALL THE DIFFERENCES BETWEEN DPB2010,DELTAPULSE,PULSESTAR-BG

hi godsmack

           your quoitation is wanted from all builder project !!!!!!
           every one make project want max deep ....that happend with good shematic
           &good coil ,good user,good work.good component market.
           my post show in esay the diffrences of 3 good deeper in our suit to help to select you want & you must
           read evry post to now every thing befor starting.
           
           the 3 project as same good deepest just shoes one with good pcb
         
           
       if you take a test 1 as standard to all deeper detector

             as dbp2010 or delta pulse or pulsestar-bg look to the text you see at any deep with any coil , it is esay.

                          -----that test in air.
 
       if want deep--->bigger coil---->bigger target

               small-->small coil----->small target
        if want 3m deep--->use 1m or 2m coil Depend the size the target (eg. 1mx2m)
         
       dpb2010 is good and many member do and best deeb resualt.but need Experience.

       delta pulse another good deep and esay made


       ps-bg  another good (i made it) very difficult .

      remrk: all metall detector you must have good Experience with electronices

     best time

     j.

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,15627.msg104479.html#msg104479

hi eugene52   
           i improve the pcb like delta ver 6 by adding   stth1210d , r51= 1 ohm/1w

            instead  one Jumper and remove another ,r50= 10kohm to mosfet ,c32=4700/25 . 
                                 
             Please Check the pcb (improved 11) with ver 6


           if correct i wait result .thanks

       j.

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,15627.msg106468.html#msg106468

hi eugene52
           
             The** important point** in puild  project,the answer to the important              quistion -- the deep is poor? while the project is Complete !!!!.
           
           it is the firest step after compliting the project is what the frequency
           that Adjustment to run the (fet) project.
     
           the frq. from 100hz--->400hz
           1- in case 100hz or low is used for very deep and with big coil (1x1m).
           2- in case 300hz or up is used for med deep and with 25cm coil.
           3- in case higher--->khz used for not deep with small 15cm coil.
  *for delta pulse/xr71
   --------------------
    -to adjust pr1 to 100hz (see fig.) for very deep with 1x1m in case dp.
    -to adjust pr1 to 300hz for deep in case xr71.

   the result in dp is deepest than xr71.

  *for dbp2010
  ------------
   -to adjust p1 (old ver) or p116 (new ver) to 90hz for very deep with 1x1m.

 *for pulse star bg
 ------------------
  -to adjust p1 to 120hz- 150 us for very deep with 1x1m.

   


          4-after all when the frq. is low with big coil can go deepest and find big              target . i put (fig) to all .
   
    i wait your comment.

 best time
 j.
           

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,15627.msg110498.html#msg110498

		Quote:			Posted by ram
	delta pulse frequency :90hz,100hz,200hz,300hz,400hz in 1x1 mtr coil in target metal box measures 12inx8inx7in burried at 10ft deep underground=not detected ! but same frequency above and same coil size, bulldozer burried at 50 ft underground= detected !! it is ovious that it will dependent to the size of the metal object! (school buildings with galvanized roof burried at 30mtr mud due to landslide somewhere in  asia, all powerful metal detectors and gpr's in the world were used in the area, yielded no result underground.) where are those very expensive gpr's and metal detectors?

Welcome back RAM !!  Its been a few weeks . Glad you are still on the forum and seem to be
Doing OK after the floods in your country !!

Best Regards...............Eugene

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,15627.msg110538.html#msg110538

Japanese,

Thanks for sharing your work. What are your depths based on? Is your DP a completed project or are you air testing an almost finished DP?

Thanks.

Linkback:

You are not allowed to view links.
Please Register or Login

http://www.thunting.com/smf/index.php/topic,15627.msg110692.html#msg110692