I am sure that there is no person that never passed through a walk through metal detector be it on an airport, mall, shopping center, cinema or similar. Detectors are used for safety precautions, and walking into a safe area, after you passed through a metal detector, can be really overwhelming. Saying this in a few simple words - metal detectors make people feel safe!
The feeling of safety can be created while in an airport, college, office building, or any other area where these detectors are being used. People that are using them can control who enters a specific area and what he/she brings inside it.
There are different types and models of security detectors, but the most commonly used are the hand held models and walk through models. With the help of a hand held detector, security personnel can physically detect if some person carries a metallic object. From the other side, walk through metal detectors are much quicker, and they alert the security personnel of dangerous objects such as knives or weapons.
How metal detectors work is quite simple - they use the principles of electromagnetic induction to detect metallic objects. The detection of a dangerous object is notified with a simple beep alarm sound.
In case you need a metal detector, and still don't know which to choose, here are some advantages of the both mentioned models. First of all, the hand held detectors are more affordable and are able to identify the same way as walk though detectors the presence of metallic objects that are considered to be potentially dangerous. From the other side, walk though models are more convenient and more efficient. Overall, if you cannot make up your mind, it is advised that you opt for both models as this way you will surely maximize the safety in the area that requires safety measures.
Detectors are able to deter potential would-be criminals because this way they will think twice after they realize they have to pass through a detector to gain entrance to some specific area.
As for the disadvantages of using security detectors, they are mostly of privacy concerns. A lot of people can find it uncomfortable passing through a detector when trying to inspect whether they have some potentially dangerous metallic objects. In some cases it is possible that they ask to be manually searched when the rules of the safety allow such actions.
Also, in this advantageous medical era, we can find a lot of medical reasons why some person might have metal on his/hers body. Sometimes, metal devices can be surgically installed inside the person's body which will cause the alarm to be set off each time that person walks through a metal detector. In many cases it is possible for the security personnel to see on their computers that the metal object that caused the alarm is actually a harmless tool and not a weapon.
As already said, metal detectors create electromagnetic جهاز كشف الذهب في الأردن fields. This can cause electrical interference to electronic devices that one person might have in its possession. This includes medical devices such as pacemakers. Some metal-detectors can harm pacemakers because they have a very strong electromagnetic field. In this case, such detectors can be fatal for those people, and it is strongly advised that they avoid passing through them.
In many situations, metal detectors can give a false alarm if people are wearing some kind of jewelry, watch, phone, loose change or similar. This can make some people feel embarrassed and can cause panic for no reason. A false alarm caused by detectors can be inconvenient both for the security personnel and person to whom the alarm turned on.
There are basically three kinds of metal detecting for gold: nugget hunting, metal detecting for gold rings, and detecting for gold coins. There are many different types and levels of metal detectors, so it is difficult to know which metal detector would be the best metal detector for you if you are hunting for gold.
For eons mineralized quartz arteries and unexposed ore bodies have been shedding pure gold for nugget hunters to find. The best spots for nugget hunting are the desert areas in Midwestern states like Arizona and California. Although many gold nuggets have been uncovered, geologists agree that 95% of the gold in our western states has yet to be found. Most of this gold is in the form of nuggets that are in reach of a good gold metal detector.
Remember that gold prospectors during the gold rush did not have a metal detector and could not see the gold. Therefore, many of these nugget rich spots have been left un-molested. For this type of hunting for gold the best metal detectors would have the correct frequency for gold detection. Metal detectors that operate at higher frequencies are good for detecting gold nuggets. This is difficult because most detectors operate at a low frequency to be able to ignore iron and to go deeper in the ground.
A good solution to this problem is the Treasure Hunter XJ9-3050 with its dual frequency technology. The problem is that gold has the same magnetic field as iron so many gold detectors will also get a lot of false signals. Pulse induction metal detectors are great for nugget hunting as they have a special technology and operate at extremely low frequencies and can find gold nuggets deep in the ground. The Minelab GPX-4500 is a favorite among gold nugget hunters but these are also not great at tuning out trash items. You should always consider a gold nugget find as a good indicator that there are more nuggets in the area. Gold nuggets are very rarely found by themselves. The best all around metal detector for gold nugget hunting is probably the Treasure Hunter XJ9-3050.
Hunting for gold rings is another type of gold hunting. Gold rings are different than gold nuggets because they are often alloyed with other types of metal. They are usually close to the surface and sometimes cannot be tuned out or selected for with a notch filter even with the best metal detector. By far the best place to look for gold rings is at the beach. Particularly in the shallows of a dropping tide at a popular resort location. The reason is because many vacationers do not realize that the colder water can make their fingers shrink and unsuspectingly lose their highly valuable ring jewelry.
Also, the shallow water is the most recent area that was occupied by vacationers. Miami's south beach is notorious for one of the most lucrative metal detecting spots on the planet and many of the local metal detectorists are very secretive and territorial about their spots. Because you will find many other types of jewelry besides gold, it is best to have an all purpose type of metal detector for ring and jewelry hunting. A great metal detector for beach hunting is the fully waterproof Treasure Hunter Poseiden detector.
It really helps to have a metal detector that can work well in the water fully submersed as well as being very capable in dry sand. Of-course dry sand metal detecting in popular resort areas is also highly recoverable detecting. Another great detector for these conditions is the Garrett GTP 1350 or the Treasure Hunter 3019. Both detectors have many different modes for different target selection or rejection and can detect small targets at large depths. Don't forget your sand scoop when detecting at the beach!
Metal detecting for gold coins is an entirely different animal and different strategies must be applied. This type of find is the most rare and valuable among treasure hunters. The best areas to find gold coins would be shipwrecks. The best and most valuable type of find and the fantasy of every treasure hunter is to find a new shipwreck with gold bullion coins and similar gold treasure. This type of find is extremely rare, but there are undiscovered shipwrecks with treasure to be found. The best place to look is along the shipping routes in the Caribbean where tons of treasure was taken from the Americas to Europe and of-course there is the notorious Pirate booty to be found.
For these spots you would need one of the more highly advanced underwater metal detectors like the Treasure Hunter Poseidon underwater metal detector. Also, rare gold coins have been found washed up at all the beaches of the East Coast, and indicates that there is much more treasure hidden out there. Overall the best metal detector for gold hunting would probably be the Treasure Hunter XJ9-3050 because of the dual frequency allows it to detect gold at great depths. Just remember that treasure is where you find it and you must be out there hunting it with your metal detector to find it!