Metal detecting for fun or profit can be one of the most exciting and rewarding of hobbies. A metal detector can cost very little, so low as $ 50 or more than $ 400 for a top line model. This is a hobby where you really get what you pay, because the more expensive top of the line detectors use the latest technology and have the best features available.

Metal detectors use one of three types of technology:

BFO (Beat Frequency Oscillation) – Metal Detectors BFO technology have two coils of wire, is to a large coil in the coil of the detector, the coil of wire and other small package is within the control of the system. Each coil of wire is connected to an oscillator which produces pulses of current. These pulses of passage of current through the coils generating radio waves. A receiver located in the System Control Pack receives the radio waves and makes a series of tones based on the frequency radio waves. When the coil of the detector passes through a coin or a metal element of a magnetic field is created around the coin or metal item, this magnetic field causes interference with radio frequency waves generated by the search coil. And changes in the tone produced by detectors using technology reciever.Metal BFO are those of their likelihood of paying less than $ 100 for, that is, the cheapies. YPFB's technology is easier and cheaper to make, therefore the detectors prices are cheap. The only problem is, BFO technology is very limited compared to the IP and YPFB detectors, and the ability to distinguish between scrap metal and other silver coins is very poor.

PI (Pulse Induction) – Metal detectors using IP technology sometimes use a single coil or a series of coils to work together as a transmitter and receiver. Short bursts of electrical current is sent through a coil of wire, causing a magnetic field. When the burst of electrical current ends the magnetic field reverses polarity. A sharp electrical spike is created, then more pulses are created, repeat the process and functions as a series of echoes, giving a different report or echo depending on the metal found. This type of metal detector is not very good for discrimination between different types of metals or coins, but it is good to use in other types of metal detectors have problems at work, as in salt, and metals can be detected much deeper with this technology than others.

VLF (Very Low Frequency) – Metal Detectors using this technology have two search coils. A coil transmits the so-called "power transmitter coil rapidly many times per second, first in one direction around the coil, then the other direction. The other coil called the 'Receiver Coil acts "like the name implies that receives frequencies or data entering or' Bounce Back 'of objects that transmitter coil detects the search area. This type of metal detector is great for its ability to be able to distinguish between different types of metals.

The first metal detector my wife and I bought together cost about $ 69.00 that was one of them the cheap technology that uses "YPFB". This was one metal detectors you see in the magazines that sell household items, etc. You can buy cheap metal detectors like those in most Radio Shack, and some K Mart and Wal Mart. The first day I took the metal detector outside we started finding some things Neet and became engaged to my wife and me. We found our share of unwanted items in the yard, like aluminum foil, nails and the usual pull tabs and metal scrap. But we also found 7 cars old diecast in great condition. All were different and were diecast vehicles Tootsie '. I looked on eBay and the peloton was worth about $ 15 or more. Also found a silver Roosevelt 1961 in good condition in our yard, besides the usual coins.

After reading about the 3 types different technologies working Metaldetection and differ from each other, you must decide how or what will be mostly using his metal detector. Will hunting for small objects like coins, jewelry and gold nuggets, or finding a large cache or object. The things you can use your detector for, play one of the most important factors besides pricing in deciding which type of detector to buy. Most people want a detector that is very good at finding coins, gold nuggets and gems of earth and small creeks and streams, this would be a detector to use "VLF technology. Almost all modern detectors have a waterproof coil that makes the search in streams and shallow rivers possible.

There is computer software that is made just for the fans of metal detection. The software is called: Metal Detector – Treasure Hunter Professional, and can be viewed at the following web address:

http://www.rb59.com/md/meal.html

By Robert W. Benjamin

Copyright © 2006

You may publish this article in your ezine, newsletter on your website as long and when played in its entirety and without modification except for formatting needs or grammar corrections.

About the Author:

Robert W. Benjamin has been in the software business on the internet for over 5 years, and has been producing low-cost software for the past 25+ years. He first released products on the AMIGA and C64 computer systems in the late 1970′s-80′s.

RB59 Software

http://www.rb59.com/software

Article Source: ArticlesBase.com – Metal Detecting – Understanding the Technology Is Important

Treasure Hunting — Using a Metal Detector 1