Jul
11
7 Considerations When Buying Your Metal Detector
July 11, 2007 | Leave a Comment
7 Considerations When Buying Your Metal Detector
By Eddy Lam
Metal detecting is gaining popularity as a hobby these days. You’ve seen scores of people using metal detectors on beaches and at parks. Your neighbour’s kid told you how he found a historic gold coin in the backyard using his metal detector and made a tidy sum selling it to the antique shop down the street. Your friend has just bought one of the sleekest looking metal detector and can’t wait to show it off. All sound good, but WAIT, before you jump onto the bandwagon, be sure you know how a metal detector work and how to get the ideal piece for yourself.
Although there are many brands available, hobby metal detectors all have common parts and components. Normally, Read more
Jul
9
Coins, Jewelry and Treasure – You Can Find Them With A Metal Detector
July 9, 2007 | Leave a Comment
Coins, Jewelry and Treasure – You Can Find Them With A Metal Detector
By Chris Ralph
Metal detecting is a comparatively new hobby. Sure there have been hobbyist type metals detectors for decades but new and superior detector technology has come out in recent years. The metal detector is an electronic device which can sense metallic objects buried in the ground. Finding a lost gold ring or old valuable coin can be really exciting, but even just picking up a few dollars of change at the local school can be loads of fun and a lot of good exercise. Once the operator is well practiced, it is possible to dig targets out of the ground with so little disturbance that the spot cannot be seen afterward. The biggest advantage of modern detectors is that most of the time they can actually differentiate trash from valuable coins and silver jewelry. Hobbyists are using their detectors to Read more
Jul
8
Metal Detectors
July 8, 2007 | Leave a Comment
Metal Detectors
By A J Wilkinson
Several different kinds of metal detectors exist, I will explain how they work while trying not to get too technical. There are three major classes of metal detectors available.
The first type of metal detector is the PI, which stands for Pulse Induction. Pulse induction means that you are creating an electromagnetic pulse that exits the coil, bounces off a target, then returns to the coil giving a report on the target it hit.
Pulse induction detectors are usually more sensitive to smaller and deeper targets. The down side is they also pick up more trash targets and have a difficult time telling good targets apart from bad targets.
Another detector type is the VLF, which stands for Very Low Frequency. This kind of detector is versatile and commonly used. It uses phase demodulation to discriminate between types of metallic objects like iron and gold. It does a good job at telling the difference between good objects, like gold and treasure, and trash such as nails, bottle caps etc.
Yet another is the BFO, or Beat Frequency Oscillator. The beat frequency oscillator is a low cost circuit design. It has two coils, one at the end of the arm of the detector and one in the control box on the handle. These coils form a pair of tuned oscillators. The oscillators are tuned so that the difference in their frequencies is an exact multiple of each other. The presence of any metallic object will produce a change in either oscillator and thus produce an audible beat frequency harmonic tone.
Each of these technologies has trade-offs, usually between cost and their ability to sense small valuable objects. Newer advances are coming every day. Most of these are in the area of using special digital signal processing of the return signal. Every conductive object has a peculiar signature spectrum that tells a bit more about the object and can also be filtered out to separate junk (iron & aluminum) from Gold Treasure. As technologies advance the price for more capable equipment drops. This in turn opens new depths and more trashy areas to be hunted for treasure.
Please remember to hunt responsibly, avoid trespassing and fill your holes when you are finished. Enjoy hunting for buried treasure!
This article is from Hunting4Treasure.com, visit them for more information on Metal Detectors.
Article Source: http://EzineArticles.com/?expert=A_J_Wilkinson
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Jul
7
Metal Detectors for Kids
July 7, 2007 | Leave a Comment
Metal Detectors for Kids
By Low Jeremy
A lot of kids grew up with the fascination of pirates and buried treasure. The child of course will never find an old treasure map to enjoy this sort of adventure. Parents however can offer some support by letting the kid have fun by hiding something in the house and looking for it.
Having a treasure hunt at home can be fun. The best way to enlarge the search area will be to do this also in the backyard and even getting a metal detector. Here are a few basic units that the person can choose from. Read more
Jul
6
3 Types of Metal Detecting to Get Involved I
July 6, 2007 | Leave a Comment
3 Types of Metal Detecting to Get Involved In
By J C Christian
Metal detecting can be a lot of fun, a wonderful hobby, and can also be a way to make money if you know what to look for. They’re a lot different types of metal detecting and a lot of different places you can go to metal detect. We will look at three different ways to metal detect water and beach detecting, gold prospecting, and treasure detecting.
1. Water and beach detecting
This is one of the fastest growing types of metal detecting as until recently Read more
Jul
5
Treasure Hunting for Indian Peace Medals
July 5, 2007 | Leave a Comment
Treasure Hunting for Indian Peace Medals
By Greg Mulac
Originally the Indian Peace medals were made for the British Kings starting in the pre-revolutionary times, then progressed to having one for each of the US presidents until the late 1860s. They come in 2 main types — a normal, round coin shape that everyone is familiar with, and an engraved, oval type medal.
Since these medals were originally given to the various Indian tribes as a show of friendship, this is where it starts to get exciting for the treasure hunter.
The main reason is to think like this: Read more
Jul
4
Searching For Treasure Using the Pionner Metal Detector
By Low Jeremy
Hunting for buried treasure is no longer something that kids do for fun. Adults are also getting into this thanks to the handy metal detector.
One model doing quite well in the market is the Bounty Hunter P110 Pioneer Metal Detector with Automatic Ground Trac.
This type of metal detector is hand held so all the user has to do is point it toward the ground. It comes with headphones and once this is adjusted to the right sensitivity, the person will be able to find anything such as coins, jewelry and anything else metallic.
The individual does not have to bend over to get a signal because Read more
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