The working principle of metal detectors is related to the magnetic field. It transmits a magnetic field and inspects a return signal from the environment and the target. The magnetic fields which are transmitted vary in time with high-pitched audio signals. The transmit electronics produce an electric current that changes with the magnetic transmitter in a transmit coil. The receive coil or the receiver is usually connected to signal and receive processing electronics. The receive coil and transmit coil sometimes act as the same coil.
Also, sometimes we can notice a change in the transmitted magnetic field, which leads the electric current to flow in the direction of metal targets. These electric current are also known as eddy currents, also generate a weak magnetic field, but the intensity is different from the transmitted magnetic field in strength and shape. These regenerated metal detectors help us to detect the targets of the metals.
In physics, we have read that magnetism will also be there if there is an electric field. But if you do not know how an electric field is related to magnetism, this will help you get it. One of the most important things one should know is how magnetism is associated with an electric field. If one ever came across the coil of wire connected to the battery, one can feel the electromagnetic field. An electric field and magnetism are like a couple. If you find an electric field, you will automatically find the magnetism.
To make you understand better, we can refer to the example of your daily electric appliances that you use. That electricity we get, provided to us by the power plants, is usually produced by the generators, traditionally made of copper wires. Thus when the wire rotates, the magnetic field is generated around it, and the electricity automatically generates inside.
In 1860, a Scottish scientist named James Clark Maxwell genuinely solved this problem and applied his mathematical formula. Basically, from that mathematical formula, we get to know that if there is a changing electric current, you will get a changing magnetic field. That is why magnetism and an electric field are interrelated to each other. And it also gives us a brief idea of how does the metal detector works.
How can it detect metals?
First, the metal detector consists of a battery that activates the transmitting circuit, which helps the electricity through the cable to the search coil. The search coil of metal detectors transmits an electromagnetic field into the ground. The control box contains an electronic detector that is where the transmit signals are generated. And also, the received signals which are processed get converted into a target response.
Take responsibility while using Metal detectors
Before you go and set up for searching treasure, we hope you have done your research on laws. If you do not go through or have not much knowledge, then you should know some facts. Yes, there are metal detecting laws. Many countries, counties, state have their rules, and it isn't easy to stay on the line.
We can understand that how energetic you are after finding how a metal detector works. Maybe you are dreaming of unearthing great treasures and also making some money through them. Is the beach is the best place to go hunting? Yes, but not that easy. If you can be a part of any hunting club, then it will be easy for you to go anywhere and hunt.
Someplace have several local, federal and state laws that can get you into a lot of trouble if you do not have permission for hunting. This can stop your dream of hunting. So you need to be apparent at first that whether if you can take your metal detector with you to that particular place or not.
Responsibility is the main thing you need to have if you are going on a treasure hunt. If you are going with a hunting club, remember you have to maintain the rules and regulations they will tell you. There is a glorious treasure that belongs to the government to allow anyone to go and have fun with their property. The following methods can help you to get permission.
The following methods will help you to get permission for sure. You can continue and can prosper your dream. But do not forget to know about each guideline that government or the landowners will give you.