Detection of metal for fun or profit can be one of the most exciting and rewarding of hobbies. A metal detector can cost very little, as low as $ 50 or above $ 400 for a major model line. It is a hobby where you really get what you pay, because the most expensive peak detectors line uses the latest technology and they have the best features available.
Metal detectors using one of the three types of technology:
(Beat oscillation frequency) - BFO detector of metal, using the BFO technology have two coils of wire, a large coil is in search of the detector coil another small coil of wire is in the module control system. Each coil cable is connected to an oscillator that produces current pulses. These pulse current passing through the coils generate radio waves.A receiver hosted within the module control system receives radio waves and a series of tones that relies on radio.Cuando passes on a currency detector search or other metallic element that creates a magnetic around of the currency or the element of metal coil wave frequencies, this magnetic field causes interference with the frequency of radio waves generated by the coil search. And changes the tone produced by the TV.
Using metal detectors BFO technology are that its likely get when paying in $ 100, the cheapies is correct. BFO technology is the easier and cheaper to do, therefore, the prices of detectors are cheap. The only problem is that the BFO technology is very limited compared with IP and BFO detector, and the ability to distinguish between the litter metals and silver or other currencies is very poor.
PI (press induction) - metal, using IP technology sometimes detectors use a single coil or a series of working together as a transmitter and receptor.Breves burst of electrical current is sent through a coil of wire, causing a magnetic field coil. When the burst of electrical current completes the polarity of the magnetic field reversals. Creates a strong electrical spike, then create pulses more, throughout the process is repeated, and works as a series of echoes, giving a different report or echo depending on the metal that is. This type of metal detector is not very good for discrimination between different types of metals and coins, but it is good to use where some other types of metal detectors have problems to work, as in salt water, and can be detected much deeper this technology to other metals.
VLF (Very Low Frequency) - using this technology metal detectors have two search coils. A coil called 'transmitter coil' transmits electricity rapidly many times per second, first in one direction around of the coil, and then in the other direction. The other coil called the receiver Coil acts as the name implies that it receives the frequencies or data coming or 'bounce' between transmitter coil objects is detected in the search area. This type of metal detector is ideal for its ability to be able to distinguish between different types of metals.
The first metal detector my wife and I bought together costs about $ 69.00 was one of the cheap used 'BFO' technology.This was one of detectors metals that you see in magazines that sell other items for the home, etc. You can buy cheap metal detectors as these Radio Shack stores best and some K posts and posts first Wal.El day we took the metal detector was started to find some things of neet and my wife and I were hooked.We find our quota of unwanted in the courtyard, role of aluminium, nails and usual extraction and junk metal tabs as elements.But we also find 7 cars blocker in great condition.They were all different and be Blocker TOOTSIE vehicles.I looked on eBay and the bunch was worth about $ 15 or más.También find Penny Roosevelt 1961 silver in good condition, in our yard, apart from the usual pence.
To read about how the 3 different types of metal detector technologies of working and differ from each other, must decide how or what most used his para.Va metal detector hunting of small objects such as coins, jewels and gold nuggets or looking for a large cache or the objeto.Las things that you might want to use your listener, playing one of the most important addition of pricing in deciding what kind of detector for comprar.Mayoría people want a detector that is large in search of currencies, gold nuggets, and jewelry in land and small creeks and streams factors, this would be a detector using 'VLF' technology.Almost all modern listeners have a coil waterproof search that searches in little deep ravines and possible streams.
There is software that is only performed for the hobby metal.El detection software is called: metal - detector Treasure Hunter Professional and can be seen in the direction of this website:
http://www.rb59.com/software
By Robert w. Benjamin
Copyright © 2005
Robert w. Benjamin has been in the software in the internet business for over 5 years and has been producing low-cost software during the last 25 + years. first of all, had launched products in C64 and AMIGA systems late 1970 ' s-80.
RB59.COM http://www.rb59.com/software software
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