smell of wandering, flavor adventure or prosaic getting rid of its suburban area from a variety of metal debris might lead one to believe the acquisition of a special device.Professional metal detectors, reviews of which are known to all, are quite expensive.Instead, they meet all the requirements of these diggers professionals.It is necessary to choose the best metal detectors.Reviews will help make sense of this difficult matter.And you can make this unit by yourself.
Where used metal detectors?
In addition to searching the real treasures and surveys of private land for the purification of soil, metal detectors are used in various fields:
- to detect underground communications cables and pipelines;
- to assist in archaeological excavations;
- when engineering work and criminology;
- in demining troops.
Athletic kladoiskatel'stvo
One type of active hobby - sports treasure hunting - is becoming increasingly popular among the enterprising and enthusiastic people.What is interesting in this case?
- element of the unknown is always fascinating.How to make a metal detector in the home?What lies beneath the surface of the earth?While you will not get, and you try - I do not know.
- Whose unit deeper "peep" under the ground?Whose better determine the quality of the metal trinkets that had lain for years in obscurity?
- And if this piece of iron still has value - that's the limit of jubilation inventor who came up with their own, how to make a metal detector at home from improvised.
- at a rally competitions and, of course, coins buried specifically to identify opportunities homemade and factory detectors.
on which the principle of operation of metal detectors?
Any metal detectors operate on the basis of the school curriculum known "eddy currents".We will not go into the details of the experiments.The approach of the search coil and the metal object is a change in the oscillator frequency, as reported by the device beep.If you hear a beep in the headphones, then under the ground is something metallic.
present inventors are working on two tasks:
- increase the depth of the search;
- improve the identification parameters of devices;
- reduction of energy consumption;
- comfortable performance.
The need to stock up for the manufacture of the detector?
How to make a metal detector in the home?It should be a little bit acquainted with electronics and physics to read 7th grade middle school.It will be useful experience of working with some tools and materials at hand.It is necessary to explore and test a number of electronic circuits to choose the one that will actually work.The materials that will be needed when working:
- small generator (the old tape recorder);
- quartz resonator;
- film capacitors and resistors;
- vinyl or wooden ring for the search coil;
- plastic, bamboo or wooden stick - holder;
- aluminum foil;
- wire for the coil winding;
- piezoelectric transducer;
- metal box - the screen;
- headphones to receive the audio signal from the instrument;
- two identical transformer coils;
- 2 battery "Crone";
- perseverance and patience.
of assembly metal detector search
From plywood circle with a diameter of 15 cm search coil is made: wire coils (15-20) wound on the template.Peeled ends soldered to the connecting cable.Along the perimeter of the coil wire is wound on top of a layer of thread to secure.
All the details of the scheme are soldered on the PCB from the PCB as follows: Condenser, resistors, crystal filter, a signal amplifier, transistors, diodes, search generator.The body prepared to invest soldered board, connect it with the search coil and is attached to a stick-holder.
signal from the search coil, reflected a metal object, increases the frequency of the generator.Reinforced crystal filter, it is converted to DC amplitude detector pulse that generates the sound.
How to dig up the asphalt and go unbeaten through?
Not all those who are wondering how to make a metal detector at home, think about the fact that the earth is the electric conductors.However, this fact can strongly influence the performance of search.Metal "AKA", in which the creators of mathematically calculated and minimized the effect of Earth's electromagnetic field, process the entire flow of the waves.In addition, the signal reflected from the object is supplied to the monitor apparatus.The device shows a way by which we can determine that for a piece of iron lying under a layer of soil:
- or a bunch of coins;
- perhaps an ancient nail;
- mine or explosive projectile splinter;
- helmet or Sapper shovel;
- a single piece of metal.
Smart detector depth reports on the subject.The patented technology of search facilities averaged visualization allows you to decide whether or not to dig in this location.The instrument has a convenient design and easy ready for operation.
most enthusiastic inventors seeking a treasure like to do everything yourself.Some even complicate the process itself and come up with how to make a simple metal detector at home.Never mind that he can find only old button on the depth of 5-6 cm from the surface.But how much pride from the process gets created!
Whether all hoards already dug?
ancient manuscripts and maps with legendary treasures captivate not only greedy treasure seekers.Historians, researchers and archaeologists have for years wanted that took Napoleon from Moscow.A wealth plundered Stenka Razin?Where they are, waiting for someone?Is it found pirated storage in the Caribbean?
Some sources that ataman mining quietly waiting for the lucky one of the islands of the Caspian Sea.A gold, have been taken out by Napoleon, is, recaptured and perepryatat Cossacks.And drove the French to Paris.And only one came back, and he could not know the terrain.And while waiting for winter, he fell ill and died.Since then he remained in one piece from the archives of the plan, which bear the symbols of all the chests, and ten barrels of gold.
Russia - not Europe, and banks in the old days was not.Where might there hoard wealth from the spiteful critics and robbers.So let not such a great find will fall, and smaller, it is still nice.How to make a metal detector in the home?If you really want, you just need to try.
as stated in a famous film favorite character, we seek!
