[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
2
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 stephanemgTopic starter
Foil
*

Join Date: Aug, 2009
Thank you1

Activity
0%

France
Posts: 4
Referrals: 0

30.00 Gold
View Inventory

Awards

etrac
« on: September 05, 2009, 11:46:27 pm »
Go Up Go Down

At least :
to me, as it is, this project cannot work efficiently.
the fgm-3 specs, on the speake's site talk about different resolutions / sensitivity for two different sensors, so one sensor moves in frequency faster than the other, even if correctly aligned.
I have for example made the tests, one of my sensors moves from 4000hz for e/w to n/s, and the other 1500hz for the same movement.
Test made in a magnetic perturbance free environment, sensor first put on a e/w alignement, rotated to have the max frequency value.

You must reprogram the pic to put some constants to take this sensitivity difference, so to me this project is unusable, and simply doesn't work.

Dont build it, dont buy the components, it's a pure waste of time, instead learning how it works, but you will not find anything with the epe (or maybe be very lucky and have exactly two fgm-3 exactly the same, but I wasn't)


Linkback:

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

http://www.thunting.com/smf/index.php/topic,7728.msg48238.html#msg48238




Logged
Print
Pages: 1    Go Up
Jump to:  

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