A small part of people appreciates that factory devices with the sound of metal objects significantly replace self-propelled devices, that is, Milkov’s thought. If you competently make metal detectors with your own hands and set them up, you can revolutionize company metal detectors. What, with your own money, can spare a penny sum for you? Before you can make a self-assembly, you must know the principle of operation and construction.

The principle of dii

The attachment detects metal under the ground with the help of an electromagnetic field created by a transmission coil. It begins to interact with the object (almost all metals are stream-conducting), as a result of which a vortex stream is created, which vibrates the radioactive coils of the metal gunner. The screen on the EOM will catch the leakage of these metals, if you do not conduct electricity, or in the event that the stench is generated by electromagnetic power.

When possession begins to catch people who are wrong, then Please immediately go to the block of ceramics. This part of the detector vibrates a sound signal, which notifies that a discovery has been made. The sound can be strong or weak. It’s a strong signal to talk about those things that are not deep, but a weak one, on the surface. At a distance of 50 cm there may be a coin, and the signal will be weak. And with such a level of sound transmission at a depth of 100 cm, large objects can lie in front of a helmet, or even so. This factor must be taken seriously.

Some expensive factory models display data on a monitor, and are very difficult to test at home. The “Pirate” detector is the simplest one selected. Therefore, on your application you can demonstrate the process of assembling a self-propelled device.

If you still can’t go out and make metal crafts at home, you can go to the store and buy a brand-name tool or pick up some money from the masters who do housework. You can find smart people through people you know on the Internet.

Uvaga! Beginners who first took up folding a metal detector with their own hands often get lost in electronics. As a result of all the fuss, the fragments of them scream formulas, diagrams and special terminologies. To develop your own ability, it is enough to understand the essence of the system, skipping physics lessons in school.

Drukovana fee

One of the most important parts included is the board. Then all the nodes of the detector are secured to it. The most optimal payment method is LUT (laser-based technology). The preparation proceeds through the completion of all stages, which may be followed in strict order.

A detailed description of the folding of circuits on a self-made metal machine or how to make a board from scratch:

People pay the remaining amount. Rozchin LTI-120 coats the entire surface.

Soldering of elements

The prepared board is ready to look around. It is necessary to reconfigure so that all the lines of the path are clearly visible and the doors are in their proper places. After that, all the necessary elements are soldered onto the assembled metal detector board:

The most complex one is the K157UD2 booster. Because we haven’t been vibrating for a long time. It would be better to look for contemporary analogues that would fit the characteristics of the Radian version.

Cat's creation

To make a cat, you need a frame with a 20 cm webbing. On average, 25 turns are wound on it; It’s good to move a lot of dartan winding with a way of checking the device on the coin. May be released on 23rd and 26th centuries. This is how the next location for detecting a small object is indicated. Bazhano zastosovuvati Drits PEV with the thickness of pіvcentimeter.

After that, as a master, you need to use a large number of darts, and then wind them onto the frame with a strong pressure. An insulated stitch is applied to all self-made cats. Don’t worry about covering it too much, one ball is enough so that the turns are not visible. A robot with a self-made cat can be considered complete.

Additional equipment

Besides pay and money, you will have to add other necessary equipment, which will significantly improve your productivity. Experienced experts recommend equipping the device with the following devices:

  1. The alarm speaker can be heard from the main radio. Important mind: guilty mother opir 8 Ohm. Due to the savings, it is better to get a portable version of the Chinese plant.
  2. 2 potentiometers, their tension varies. One model is 10 rooms, and the other is 100 rooms. It is practically impossible to remove the wrong ones, so you will have to minimize them as much as possible. What is the purpose of shielding the wire that connects the coil and the circuit. A metal detector must operate at 12 V no less.
  3. The voltage stabilizer L7812 improves the resistance of electrical microcircuits. It is installed at the entrance.
  4. Detector frame. It can be installed from whatever materials are at hand. However, for ease of use, it is better to use a 5 m long PVC pipe. They are often used for laying pipeline lines. You still need to buy some sprat. A round hand rest is installed on the top part. Then you need to find a sealed plastic box that will hold the board. After this, it is mounted more in the middle of the rod.
  5. To power the system, you need a battery like a screwdriver. The advantage is that the battery is of little use and waste.

Important! The entire skeleton and other parts of the metal slayer are not to blame for being metal. Their presence can interfere with the electromagnetic field. It’s better to give preference to plastic.

Adjustment and verification

Right in front of the detector with potentiometers sensitivity is being adjusted. It is necessary to achieve uniform cracking. Adjust accordingly on the other object. A hardened metal slayer with his own hands in the home is guilty of revealing it at a depth of 30 cm. Radyansky Karbovanets will show it at a depth of 45 cm. Larger objects are caught at a depth of 100 cm.

In this great depth, the device cannot find coins or similar credits. Confirmed prank treasures, of course, by sound you can roughly understand the parameters of the identified object, Ale type is impossible to separate. A newbie with this type of attack often runs into flowers and other unnecessary plantings.

Making metal craftsmanship with your own hands is not that difficult. Self-propelled models are ideally suited for training cobs of prickly treasures. You can find a lot of evidence on them and find an important discovery. Until then, I won’t be able to stain the koshti on the annex. And after mastering your skills, you can buy a professional detector with a monitor that can detect coins at great depths.

I recommend repeating especially the collections recently and successfully earning a simple metal trick. This metal craft works on the principle of “transmission-reception”. The multivibrator is the transmitter, and the receiver is the audio frequency booster. The principle diagram was published in the Radio magazine.



MD Primach Scheme - another option

Parameters of the metal joker

Operating frequency – close to 2 kHz;
- the depth of a coin with a diameter of 25 mm is 9 cm;
- sealing lid for a jar – 25 cm;
- Aluminum sheet measuring 200x300 mm - 45 cm;
- sewer hatch – 60 cm.

Connections to the new sound coils are absolutely the same in size and winding. They need to be loosened so that without any external metal objects, the connections between them are practically indestructible, butt the cat is pointed at the baby.

If the transmitting and receiving circuits are set up on their own, then the transmission signal in the receiving circuit cannot be heard. When a balanced system of a metal object appears near the system, under the influx of a changeable magnetic field of the transmitting coil, the names of vortex jets arise as a result of the power of the magnetic field, which induces change in the receiving coil. Innu ERS.


The signal, received by the receiver, is converted into sound by the phones. The scheme of the metal prankster is really quite simple, but if you don’t care about it, it works well, but your sensitivity is bad. The multivibrator of the transmitting block can be assembled with other transistors of a similar structure.

The metal shells are 200x100 mm in size and contain approximately 80 turns of 0.6-0.8 mm dart. To check the robot transmission instead of the L1 coil, connect the headphones and switch to the fact that when the live sound is turned on. Then, having connected the coil to the place, control the flow of the transmitter - 5...8 mA.


The trick is to adjust when the input is closed. By selecting resistor R1 in the first cascade and R3 in the other, a voltage is installed on the collectors of the transistors, which is approximately half the life voltage. Then, by selecting resistor R5, the flow of the collector of transistor VT3 becomes equal to 5...8 mA. After this, having disconnected the input, connect to the next coil of the L1 receiver and, receiving the transmission signal at a distance of approximately 1 m, switch to the appropriate device.

p align="justify">Among radio amateur structures, there is a particular interest in exploring the investigations that help identify metal objects buried in the ground. Especially since the rest are small in size, they lie at significant depths and are also nonferromagnetic.

High-quality electrical circuits of similar devices, called by analogy with the well-known military units of metal detectors, and descriptions of entirely useful structures have been published in various technical publications
The data, if not insured, are most often prepared, confirmed by self-reporters, have a good material base, scarce parts.

And the axle design we have proposed can be completely repeated and prepared for a newbie. More details and parts required (including a 1 MHz quartz crystal) will be added. Well, the sensitivity of the best metal slayer... It can be judged by the fact that, for example, a copper coin with a diameter of 20 mm and a thickness of 1.5 mm at a depth of 0.9 m can be easily seen with the help of an additional device.

The principle of dii

It is tuned to equal two frequencies. One of them is standard, and the other is subject to change. Moreover, the vitriol lies in the presence of metal objects appearing near the field of a highly sensitive sounding cat. In modern metal-sounding machines, up to which it is possible to completely mount and design as can be seen, the standard generator operates at a frequency that varies by an order of magnitude from those that appear in the sound field ї cats. Our version has a standard generator (an amazingly important electrical circuit) implemented on two logical elements of the ZI-NOT integrated DD2. Its frequency is stabilized and determined by a quartz resonator ZQ1 (1 MHz). The generator has a frequency that changes, victorious on the first two elements of IC DD1. The kolivalny circuit here is created by a sound coil L1, capacitors C2 and SZ, and also a varicap VD1. And for adjustment to a frequency of 100 kHz, use potentiometer R2, which sets the voltage requirement of the varicap VD1.

Fig.1. The principle electrical circuit of a highly sensitive self-propelled metal sniper.

As a buffer boosting the signal, logical elements DD1.3 and DD2.3 are used, which operate on the switch DD1.4. The indicator is a high-impedance telephone capsule BF1. And capacitor C10 is used as a shunt for high-frequency storage, which must be removed from the noise.

The configuration of the other board is shown in the following illustration. And the layout of the radio elements on the side opposite the other conductors is given here in a different color.

Fig.2. The board of a self-propelled metallic machine was made, from the designated parts of the elements.

The metal sniper can live in a steady stream with a voltage of 9 V. High stabilization is not required here, a battery of the “Krona” type is used. Capacitors C8 and C9 successfully act as a filter.

Poshuk's cat requires special precision and care when prepared. It is wound on a vinyl tube with an external diameter of 15 mm and an internal diameter of 10 mm, bent to a stake shape of 0200 mm. The cat is aimed at 100 turns of PEV-0.27 dart. Once the coil is wound, it is wrapped in aluminum foil to create an electrostatic screen (changing the flow of capacity between the coil and the ground). In this case, it is important to avoid electrical contact between the wound wire and the sharp edges of the foil. Zokrema, help here with “wrap around navskis”. And to protect the aluminum coating from mechanical damage, additionally wrap the coil with an insulating bandage stitch.

The diameter of the coil may be different. Even if it is smaller, the sensitivity of the whole structure becomes an asset, and then the sound of the presence of metal objects resounds. When the diameter of the coil increases, the effect is avoided.

Practice with metal jokes like this. Having moved the sound coil very close to the ground, adjust the generator with potentiometer R2. Moreover, this is so that the sound of the telephone capsule cannot be heard. As the cat collapses above the surface of the earth (major sank back to the rest) and a new place is heard - with the appearance of sound in the telephone capsule.

With the discovery of the considered object, a device for the recovery of objects buried near the ground, in order to become archaeological and national cultural value, must first be allowed from the auxiliary organs.

Respect!!! The information contained on this page is provided on the basis of unverified information and may be out of date and subject to inaccuracies. That’s why it’s important to be guided with a conscious warning.

M. Kochetov, for materials from "Young Constructor"

Nowadays, a lot of people are trying not to buy metal junk, but to collect them with their own hands. As a rule, it is important that it is made with one’s own hands in richly richer, lower-brand copies. Practice has shown that a clearly visible product can compete with metal producers and producers.

It goes without saying that such a device, perhaps, will look a little better for its aesthetic features, but in addition to its technical data it will be competitive.

Behind-the-scenes news about metal scavengers

Before the cob take away the powerful metal joker It is necessary to know the principles of its work and how such technology can be developed.

Construction

There are five types of metal swindlers here. Stinks appear behind the depths of the sound of metal. There are a variety of functions that simplify the work, but in such cases we can call them similar features.

Robot principle

The structure of the metal-shrinking system may, at first glance, be foldable. In truth, the whole process is simply a heaviness of metal particles behind the help of a magnetized coil. When the cat begins to attract metal parts, magnetic coils pass through it, and after that a signal is sent.

Varto note that cats operate at low and high frequencies. If the equipment operates at low frequencies, then metal vibrations will be important found only at a depth of several meters. In addition, a metal detector that operates at low frequencies may reveal larger-than-life effects, and small metal parts on the surface may not be visible. A metal detector that reacts at high frequencies, however, cannot detect too many details on the surface, but cannot detect large objects at a depth of more than two meters.

Type varieties

Metal detectors can be divided into 5 types, devices that are responsible for transmitting and rejecting a signal.

How to make metal craftsmanship with your own hands?

It is not so difficult to become a powerful, self-motivated metal joker, since there are no great beginners in electricity and in the system itself. Nowadays, there is a large number of metal drugs that can be collected in households. They are concerned about the circuits that need to be selected for the construction of the control unit, materials and foldability.

As a rule, the most sophisticated metalworker goes behind the circuit, so it is necessary to install two generators into the structure of the system. This is difficult to do for a beginner. This is the simplest type of metal craft that can be easily created at home, without using the materials at hand.

Frame

The folding of a self-made metal machine must begin with the disassembly of the body. Vіn is guilty of being a simple barbell, like can be boiled or joined with fasteners. In fact, there are no singing frames to the body. Here every person can work out a barbell for themselves, but it is important to remember the actions of officials.

First of all, the material that is selected for the preparation of the body can be added to the surface so that the vagaries of an adult person can be absorbed at all times. In addition, you can’t forget about the dimensions of such a bar, and even if it’s wrong to choose the right amount of time for your growth, if you feel the skin on metal objects, you’ll end up with a few hips standing at the bent position.

Plenty of people will forgive themselves for the work created by the Vikorist corps and the simple police force, which also serves as a supporter. The police can be easily adapted to your age, and it doesn’t cost much.

Poshukova cat

It’s important to get a kitten on your own for poshuk, but it’s possible. We first need to start building a device for winding the coil. For the cob, you need to take a simple board measuring 18 by 18, flowers and cambric.

This message needs to be painted on the back of your head. drive in a diameter of at least 16 points, So that the stench of the droplets swells by about 2 cm. After this, cambrics are installed on the flowers, which are suitable for wrapping with honey dart. Finally, everything is carefully secured with threads that need to be wound around the entire diameter and coated with epoxy resin.

It is necessary to trim 4 cm from the tops, tighten the casing with electrical tape and cover it with additional foil. The first thread needs to be treated with a length of 1.25 cm and then re-wound it on the spool. Then the action is repeated, or, more precisely, the cat is wrapped with electrical tape. Before removing the coil, you will still need to solder the contact pad.

Keruvanya block

To create a control unit you need:

All necessary parts can be found in an old transistor type receiver. To assemble the control unit, you will need to find the main body and install all the parts.

The scheme is that the cat will mate at once for additional help with a shielded dart. The cable screen is soldered to the terminal of the coil, insulation is installed, and the cable is fixed to the housing using additional insulating tape.

Visnovok

You can earn money from the cob market simply at home with the help of other tools. Everything you need to do is to follow the instructions and diagrams of the folding equipment. The result is a model that can accurately search for small metal objects at depths of up to 1 m.

Devices used to detect metal objects in low-conductivity media are called metal detectors or metal detectors. They can be used to search for black and colored metals. Self-propelled metal detector for coins is designed to detect debris at a distance of 10 to 50 cm, and volumetric metals from 0.5 to 3 m.

The use of metal detectors has been around for a long time, and the greatest increase in their production began at the end of the 60s. With all the progress and impersonality of circuits, any radio amplifier can make a metal prankster with their own hands, without going into great knowledge in electronics. The main advantage of self-made metal swindlers is small expenses.

Let's take the simplest metal joker that operates on two frequency generators - a bit metal joker. At the same frequency, the generators are synchronized, but when metal enters the field of one of the coils, the frequency of one of the generators changes. As a result, the circuit produces a dynamic sound of the difference in frequencies of the two generators.

Tools and materials for the device

To create a self-contained metal machine, it is necessary to divide the process into three stages - construction, implementation of circuits, assembly into a single whole. We will describe the approximate range of tools and materials that may be needed for this purpose. Further on in the article it will be explained: from what metal can be collected for gold, and what material is best for vicorization. Let’s finish preparing the tools for cob diggers. For robots you need:

  1. Tools for robots with wires and parts;
  2. Nizh;
  3. Saw for plastic. At the extreme end, you can quickly cut it with a knife or a regular saw;
  4. Soldering iron;
  5. Set of twists.

Required materials:

  1. Insulating stitch;
  2. Set for soldering. You can use just rosin and solder;
  3. Glue;
  4. Details and board for circuits;
  5. Wire for the cat;
  6. A piece of plastic and a plastic pipe;
  7. Squeaky viruses.

Preparation of parts

Here is a description of the instructions for selecting and searching for parts.

It is first necessary to determine the material and fastenings of the warehouse parts of the metal gun and to know the necessary components.

As a barbell, you can use a frame with an armrest, a pipe, a pipe made of sewn polyethylene or polyvinyl chloride (Fig. 2).

The coils and circuit are placed below on the stand, attached to the rod. So it is important to protect the stiffness of the barbell and its material. It’s better to give the advantage to the electricians, then. Why not conduct an electric strum - plastic, wood, etc. It is necessary to make a handle so that it is comfortable to handle the metal tool that is being prepared. In the case of a police station, it is not required, but in another case, you can attach both a bicycle lining and another self-contained structure.

The stand for the circuit and the coil can be made from basic plastic. It’s easy to trim and has little importance. You will need one bottom sheet, the fragments for adjustment will provide the required access to the coils. To change the vibration of circuits with coils, you should choose a lower plastic.

After preparing the rod and stand, they must be connected. You can quickly use fastening tools, but don’t forget that for proper operation of the circuit, you don’t have to bring the metal ones closer, lower by 30 cm. Therefore, a good glue is used, for example, flowers. You can also use other materials - all of them are stored in your stock in metalworking and carpentry work.

The wire for the coils may be insulated. Use enamelled copper wire with a diameter of 0.5 - 0.7 mm, grade PEV or PEL. Dovzhina dart is close to 100 meters. The varnish for fixing parts is oil-based.

The parts can be mounted using a hanging method on textolite or cardboard. For radio amateurs, you can buy fabricated textolite from the factory or material with openings for parts in specialized stores. You can also make a payment yourself for a whole, unbroken textolite. To do this, you need to determine the placement of the contacts of the radio components on the circuit, then separate the panels of the textolite with a knife and viscosize the pedestals and tracks (Fig. 3). A piece of the textolite is cut with a plastic file.

To assemble a working metal machine, radio parts can be found at home from old radio equipment, or you can also get them from a store. However, the new parts will be completely identical and come from the same batch. Table 1 contains a list of necessary details and comments that will lead to the creation of an acid metal machine.

Once you have found all the necessary parts, you can easily collect metal weapons from your home.

I'll add a folding room

Having looked at the list of necessary materials and parts, it is obvious how to select metal crafts from them with your own hands.

To wind the coils, use a round object with a diameter of 20 - 25 cm. The number of turns is up to 30. One end of the thread is drawn out and 10 turns are wound, after which, without breaking, the other end is drawn out. Continue winding another 20 turns and the third end is output. Reinforcements are made with a reserve of 10 to 20 cm. We remove the winding from the object and wrap it tightly with electrical tape, sealing the three wires (Fig. 5).

Another cat is made in a similar way. For the greatest success, paint the cat as closely as possible, using mirror images.

Let's start collecting radio components. We place the parts on the board and then solder them according to the circuit on the board 4. If you use cardboard or material with openings, the parts are connected using insulated wires with some kind of crossbar. When the prepared PCB is removed, soldering is completed until the tracks are ready. The circuit can be placed in a wooden or plastic box.

We solder the coil circuits according to the circuit. We solder and display two darts with a socket for the battery.

We are preparing a stand for the circuit and coil. The dimensions are selected taking into account that the distance between the coils is at least 10 cm, so that between them the circuit must fit and the rod is attached.

To properly secure the coils, we now place the headphones in front of the circuit and insert the battery. With small shifting of the headphones, one can achieve silence in the headphones with single clatters or the highest possible, clearest sound. We are trying to bring the metal to one of the spools, as we sense significant changes, not to talk about the usefulness of the metal crafter. We fix the coil and board in this position. If possible, it is better to glue them onto the frame, and then cover them with oil varnish.

For headphones, there are two openings in the pants - at the bottom. With the help of a wire cutter, electrical tape and a soldering iron, we continue to wire the headphones until necessary - from the circuits to the human ear area. It is immediately necessary to grow up. We stretch the wire through the middle of the rod and solder it to the circuit.

We cut off the excess of the stand and attach the bar to it manually.

Regulation

More precise adjustment – ​​there is no clicking noise in the headphones, and there is a noticeable high-frequency squeak.

There are three ways to regulate:

  1. It was possible to carry the metal across to the coils. On this cat, where the noise is heard, the remaining turn is output in the middle of the coil of the cat.
  2. You can make small pieces of aluminum. We bring them to the cats and try to keep them quiet and the solitary clicking. Secured with glue.
  3. We attach a tube to the cauldron and push a ferite cutting through it. Having achieved the desired result, we secure the haircut in this position. Watch the video below, which demonstrates how to create a self-contained regulator for adjustment in this way.

With good hearing, you can successfully prepare a metal detector as a simple metal detector through discrimination and recognition of metal types.

Modernization

Once you have decided to make the simplest metal machine with your own hands, you can proceed to a small modernization without microcircuits on the little one 9. The details of the assembly are shown in Table 2.

The new supply circuit has an RC circuit that consists of a resistor and a capacitor. You must allow enhanced sensitivity to reach.

Add replacement resistors to regulate the circuit without burning the coils. This allows you to seal the sensitive metal detector block in the metal box, which protects it from impacts.

Instead of headphones, you can use a speaker with a capacitor to increase the volume.

In this scheme, the coils are placed one on the other, as shown in figure 10. Before fixing the coils, their movements are adjusted.

When turned on, replaceable resistors are placed in the same position and the wrappers are accurately adjusted. Then all you have to do is take a metal detector and search for nuggets and metals. It has been verified practically - if you joke about any Russian beach, you can find gold and silver.