[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.

Login with email, password and session length
Or Login Using Social Network Account
News:
Pages: 1    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 Mr_CTopic starter
Pull Tab
*

Join Date: Jul, 2009
Thank you0

Activity
0%

United States
Posts: 8
Referrals: 0

10.00 Gold
View Inventory

Awards
« on: July 03, 2009, 01:25:04 pm »
Go Up Go Down

I have designed my own version of a PI detector. The design has attempted several improvements over what I've seen so far in other designs.

1: Modern electronics. If it ever turns into a kit you'll have to solder surface mount components.

2: Designed for the fastest possible collapse of the magnetic field. The BEMF spike is allowed to soar to 1KV. Low parasitic capacitance. Non-inductive load resistor.

3:Very high band width, high gain amplifier.  Necessary for undistorted received signal.

4:Multiple programmable sample points(windows).

5:Low parts count.

6:No pots. No 555's. I hate the 555. I've never used one in 25 yrs of designing hi-tech electronics.

7:Micro controller based. Simplifies the design. Total flexibility. Puts the complexity in the controller not the circuitry.

The idea is to get to the receiving mode as quickly as is possible and to extract as much information as possible from the received signal.

Linkback:

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

http://www.thunting.com/smf/index.php/topic,6225.msg37731.html#msg37731




Logged
Offline prospector pete
Pull Tab
*

Join Date: Jul, 2009
Thank you0

Activity
0%

United States
Posts: 15
Referrals: 0

65.00 Gold
View Inventory

Awards

Whites MXT, Minelab SD2200
« Reply #1 on: July 03, 2009, 01:38:21 pm »
Go Up Go Down

Sounds like you could be an electrical engineer.
I'm new here too.

Linkback:

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

http://www.thunting.com/smf/index.php/topic,6225.msg37735.html#msg37735




Logged
Offline Mr_CTopic starter
Pull Tab
*

Join Date: Jul, 2009
Thank you0

Activity
0%

United States
Posts: 8
Referrals: 0

10.00 Gold
View Inventory

Awards
« Reply #2 on: July 03, 2009, 01:49:21 pm »
Go Up Go Down

Yes, I am. Also retired and bored.

Linkback:

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

http://www.thunting.com/smf/index.php/topic,6225.msg37738.html#msg37738




Logged
Offline prospector pete
Pull Tab
*

Join Date: Jul, 2009
Thank you0

Activity
0%

United States
Posts: 15
Referrals: 0

65.00 Gold
View Inventory

Awards

Whites MXT, Minelab SD2200
« Reply #3 on: July 03, 2009, 03:09:31 pm »
Go Up Go Down

Have you been detecting long?

Linkback:

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

http://www.thunting.com/smf/index.php/topic,6225.msg37751.html#msg37751




Logged
Offline prospector pete
Pull Tab
*

Join Date: Jul, 2009
Thank you0

Activity
0%

United States
Posts: 15
Referrals: 0

65.00 Gold
View Inventory

Awards

Whites MXT, Minelab SD2200
« Reply #4 on: July 03, 2009, 03:19:59 pm »
Go Up Go Down

Have you been detecting long?

Linkback:

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

http://www.thunting.com/smf/index.php/topic,6225.msg37754.html#msg37754




Logged
Offline Mr_CTopic starter
Pull Tab
*

Join Date: Jul, 2009
Thank you0

Activity
0%

United States
Posts: 8
Referrals: 0

10.00 Gold
View Inventory

Awards
« Reply #5 on: July 03, 2009, 03:27:21 pm »
Go Up Go Down

Dabbling at it for 15 yrs. but I end up not getting serious because I end up wanting to make a better detector.

Linkback:

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

http://www.thunting.com/smf/index.php/topic,6225.msg37758.html#msg37758




Logged
Offline prospector pete
Pull Tab
*

Join Date: Jul, 2009
Thank you0

Activity
0%

United States
Posts: 15
Referrals: 0

65.00 Gold
View Inventory

Awards

Whites MXT, Minelab SD2200
« Reply #6 on: July 03, 2009, 03:51:21 pm »
Go Up Go Down

I just started out last Nov. got frustrated really fast with the high mineralization around here.  I have a Whites MXT, then I heard about the Minelab not reacting to the soil, so I bought that one.  I haven't really used either of them enough to understand them completely... yet.

Where are you located?  I'm in S. CA. in the high desert.  Great place to be, except for the heat.  Lots of abandoned mines around here, and gold was discovered here, before sutter's mill, up north. 

Linkback:

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

http://www.thunting.com/smf/index.php/topic,6225.msg37762.html#msg37762




Logged
Offline Mr_CTopic starter
Pull Tab
*

Join Date: Jul, 2009
Thank you0

Activity
0%

United States
Posts: 8
Referrals: 0

10.00 Gold
View Inventory

Awards
« Reply #7 on: July 03, 2009, 04:27:02 pm »
Go Up Go Down

Largo, FL between Clearwater & St Pete. I'd much rather be out your way but my wife has me in FL. When I visited 8 yrs. ago I saw the west side of the Panamint Mts.  I'd love to go back. I think I could spend a year or two exploring all the canyons there. It looked very interesting.

Linkback:

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

http://www.thunting.com/smf/index.php/topic,6225.msg37764.html#msg37764




Logged
Offline prospector pete
Pull Tab
*

Join Date: Jul, 2009
Thank you0

Activity
0%

United States
Posts: 15
Referrals: 0

65.00 Gold
View Inventory

Awards

Whites MXT, Minelab SD2200
« Reply #8 on: July 03, 2009, 05:28:29 pm »
Go Up Go Down

My son got married in Clearwater, in June 3 years ago, I thought I was going to die in that humidity.  My hat is off to you!
He now lives in Springhill.  I imagine that you have to watch out for snakes.  I thought rattlers were bad here, but you have a whole assortment of venemous snakes to be aware of.  I just bought some snake/waterproof boots. I don't go out without them.  We have the mojave green rattler here, and from what I've researched, they can be quite aggressive, as in chasing you.  I used to use snake chaps, until a large black ant climbed up my pant leg (while in the Mojave desert) and stung me 3 times.  It was really painful, it felt like a burn, and for an hour It felt like a lit cigarette was burning me, on each sting.  So, that's why I bought the boots, no more worries about anything climbing up my pants.

We do have many choices here, as far as detecting goes.  The tricky part if finding places to detect that aren't privatey owned, claimed, State, or Federal land.   

Linkback:

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

http://www.thunting.com/smf/index.php/topic,6225.msg37773.html#msg37773




Logged
Print
Pages: 1    Go Up
Jump to:  

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