[x] Welcome at THunting.com!

A fun place to talk about Metal Detecting, Treasure Hunting & Prospecting. Here you can share finds and experience with thousands of members from all over the world

Join us and Register Now - Its FREE & EASY

THunting.com
Treasure Hunting & Metal Detecting Community
   
Advanced Search
*
Welcome, Guest! Please login or register HERE - It is FREE and easy.
Only registered users can post and view images on our message boards.
Did you miss your activation email?

Login with email, password and session length
Or Login Using Social Network Account
News:
Pages:  1 2    Go Down
Print
Share this topic on FacebookShare this topic on Del.icio.usShare this topic on DiggShare this topic on RedditShare this topic on Twitter
Tags:
0 Members and 1 Guest are viewing this topic.
Offline xavier
Platin Member
*

From a rainy Brussels
Join Date: May, 2009
Thank you165

Activity
0%
Male
Belgium
Posts: 7339
Referrals: 0

32206.00 Gold
View Inventory
Windows 7/Server 2008 R2
Windows 7/Server 2008 R2
Chrome 37.0.2062.103
Chrome 37.0.2062.103

Awards
« Reply #10 on: September 09, 2014, 03:43:02 am »
Go Up Go Down

The funny thing is that I also had problem with the PI and mineralization even though everyone says that the PI is not disturbed by it. One thing that I must say though is that I did not shield the coil, this was a mono coil PI detector.   

Linkback:

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

http://www.thunting.com/smf/index.php/topic,57644.msg281505.html#msg281505


Xavier


Logged

So many questions so little time

Offline Ridge Runner
Mod
Platin Member
*****

Join Date: Jul, 2010
Thank you313

Activity
0%
Male
Posts: 7433
Referrals: 0

27450.00 Gold
View Inventory
Windows 7/Server 2008 R2
Windows 7/Server 2008 R2
Mozilla compatible
Mozilla compatible

Awards
« Reply #11 on: September 09, 2014, 04:42:40 am »
Go Up Go Down

Quote:Posted by xavier
The funny thing is that I also had problem with the PI and mineralization even though everyone says that the PI is not disturbed by it. One thing that I must say though is that I did not shield the coil, this was a mono coil PI detector.   


X Dude, that Machine you are Building is Eric Fosters Pre TDI Model isn't it, Huh?

Well it should Blast through Mineralised Ground and if you take the SD, GP and the GPX's then you will see that Bad ground does not worry them and the same with my TDI SL or Garrett Infinium ETC,  and in medium ground you can turn the ground Balance Off and boost the depth and in the dry sand at the beach and in the wet sand you will still pull coins at 16 - 20 inches +/- using the standard coils,

The Fact is The Soul Purpose of A Pulse Induction Machine is to ignore Mineralisation, that is its only Purpose, If you are having issues with it dealing with Bad Ground then it is Not Working Correctly,

Watch this Video of how Magnetic this ground is, It is that bad his Magnet ends up all Furry and yours should be able to do this Too,,, Enjoy.

AU.

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

http://www.youtube.com/watch?v=Qz75_Yr-nfA


Linkback:

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

http://www.thunting.com/smf/index.php/topic,57644.msg281512.html#msg281512




Logged
Offline OregonDirtFisher
Copper Member
*

Join Date: Aug, 2014
Thank you4

Activity
0%

United States
Posts: 41
Referrals: 0

170.00 Gold
View Inventory
Windows 7/Server 2008 R2
Windows 7/Server 2008 R2
Mozilla compatible
Mozilla compatible

Awards

Garrett Ace 150; Garrett AT Pro w/NEL Hunter&Tornado Coils; Fisher Gold Bug Pro
« Reply #12 on: September 09, 2014, 09:24:43 am »
Go Up Go Down

I can understand that putting to much shield on to your coils would build up a pretty bulky housing.  But think of this for a moment.  The more in tune the system is the better the sensitivity and depth you will get.  Less interference (outside of what is produced)  Both in the VLF and PI the more proper discrimination you will get, which in turn produces better quality finds. If you think your PI isn't effected by not shielding it, remember the pulses produced from your TX act as the primary (like in a transformer),  those pulses bleed over to your RX coil (like the secondary of a transformer coil) causing less efficient machine.  If you shield your TX coil and RX coil you reduce that over produced inductance.  Yes it might be less of a noticeable difference, but with finding items in different soils, that little bit may make your day or break it. 

ODF

Linkback:

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

http://www.thunting.com/smf/index.php/topic,57644.msg281520.html#msg281520




Logged
Offline xavier
Platin Member
*

From a rainy Brussels
Join Date: May, 2009
Thank you165

Activity
0%
Male
Belgium
Posts: 7339
Referrals: 0

32206.00 Gold
View Inventory
Windows 7/Server 2008 R2
Windows 7/Server 2008 R2
Chrome 37.0.2062.103
Chrome 37.0.2062.103

Awards
« Reply #13 on: September 09, 2014, 11:31:34 am »
Go Up Go Down

Quote:Posted by Ridge Runner
X Dude, that Machine you are Building is Eric Fosters Pre TDI Model isn't it, Huh?

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

http://www.youtube.com/watch?v=Qz75_Yr-nfA


No this was with the DBP2010 that I build 4 or 5 years ago.

Posted on: September 09, 2014, 06:29:36 pm
Quote:Posted by OregonDirtFisher
I can understand that putting to much shield on to your coils would build up a pretty bulky housing.  But think of this for a moment.  The more in tune the system is the better the sensitivity and depth you will get.  Less interference (outside of what is produced)  Both in the VLF and PI the more proper discrimination you will get, which in turn produces better quality finds. If you think your PI isn't effected by not shielding it, remember the pulses produced from your TX act as the primary (like in a transformer),  those pulses bleed over to your RX coil (like the secondary of a transformer coil) causing less efficient machine.  If you shield your TX coil and RX coil you reduce that over produced inductance.  Yes it might be less of a noticeable difference, but with finding items in different soils, that little bit may make your day or break it. 

ODF

Remember that the machine that I was talking about is a mono coil, but shielding the coil could make all the difference, as I said the coil was not shielded

Linkback:

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

http://www.thunting.com/smf/index.php/topic,57644.msg281524.html#msg281524


Xavier


Logged

So many questions so little time

Print
Pages:  1 2    Go Up
Jump to:  

Powered by SMF 1.1.19 | SMF © 2005, Simple Machines | Sitemap
Copyright THunting.com