A metal detector to search for gold: models, features, working principle

To search For gold are not suitable for all metal detectors. The standard model includes the transmitter with the sensor, a small generator and a control unit. Microcontrollers in devices operate at different frequency. The main parameters of the detectors should include the maximum distance of detection, precision and resistance. Also do not forget about frequency.

Modern models are made with high-quality transmitters that can operate in different modes. To learn more about the detectors, you need to understand how the search for gold detector in streams.

Working Principle

A Standard metal detector to find gold works by generating a high pulse from the transmitter. For adoption of the reverse signal is a microcontroller.

The control Unit processes the data and displays information. Devices differ on indicators. The resistance measured by the sensor. In the end, the user receives information about the presence of metal in the soil.

Choose a model

What metal detector to choose to find gold? On the market user is able to find a lot of compact detectors. As a rule, they are made with one transmitter. They have low sensitivity, and they are not able to work at high humidity. The undoubted advantage of professional detectors is the light weight. Thus, the user is able to wear the device, and not to exert much physical effort. The units are powered from lithium batteries of different capacity.

Some modifications are made holders. The maximum search distance is about 50 mm. Many models are equipped with a security system. Filters the modifications are applied with an impedance of 60 Ohms.

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If we consider the detector "Pirate", he has working humidity is 55%. The margin of error is equal to not more than 0.2%. Good models are sold with covers, and they are easy to transport. It is also worth noting that you should choose the device with high-quality handles on the belt.

Device frequency 20 kHz

Cheap metal detectors to search for gold at 20kHz is capable of working on soft ground. Working distance from them is approximately 55 mm. Some modifications are made on the two sensors. The sensors in the devices are used with racks and without them. Handle detectors that are usually rubberized. Some appliances are equipped with electronic control units that operate on battery power.

It is Also worth noting that resistance to them is low, however good conductivity. All this was made possible through the use of adapters. If you choose a quality model, you should pay attention to the modes. All this is to save battery and optimize settings. Additionally, experts advise to buy the device with integrated transmitters. They have high ripple and no problems with failures.

Model on 25 kHz

Modern detectors 25 kHz features good conductivity. These devices can operate in different modes. Some models have two pin transmitter. Minimum working distance from them equal to 20 mm. Models of this type are well suited for finding gold in soils of medium humidity. If we consider the detector "Pirate," then it is working temperature is 45 degrees. The sensors modifications are used by 20 mV.

Batteries apply lithium type. Many detectors can boast of electronic display systems with voice message. It is also worth noting that the market offers many compact models at reasonable prices.

Among the disadvantages include bulky sensors. Their average diameter is 8 cm Very few models made with filters. And the error rate have high.

Metal Detectors 30 kHz

The Detectors at 30 kHz can be made with several transmitters. Filters are most often used by 4 mV. They have good conductivity, but can cause problems on hard ground. The level of ripple in this case depends on the control unit. If we consider the high-quality versions, then they have an electronic control unit. It works with voice alert.

The Index of marginal resistance detectors start from 45 Ohms. Many devices have fuses, and batteries apply lithium type. Very often seekers with vibration. If required you can connect headphones. Professional detectors made with wide handles and clamping straps. Devices differ in security. If we consider models with one transmitter, the error rate they have is quite low.

Device low sensitivity

Beginners often choose the device of low sensitivity. They are cheap, and able to work in economy mode. Some modifications are suitable for the soils of different density. Lonely it should be noted that the device is not allocated to a good accuracysearch.

Working frequency of detectors is on average equal to 10 kHz. Many models are made with one transmitter. Usually, it is installed integrated type. The detectors are equipped with a standard display system. It is also worth noting that there is a decent model, but they have large dimensions.

Detectors high sensitivity

The Device high sensitivity suitable for searching for gold in areas of high humidity. Experts are often chosen for good conductivity. Experts say that it is necessary to give preference only to models with integrated sensors.

The Optimal working distance is 55 mm. the coefficient of resistance shall not be more than 45 Ohms. Last stand is estimated and the holder. Permissible humidity detectors of this type is 75 %. The batteries are high capacity, because devices consume a lot of energy.

Model of the brand Minelab

A metal detector to find gold to choose? Answering this question, it is important to mention that the Minelab is a leader in the manufacture of detectors. The assortment of the company there are models for aspiring gold diggers, as well as for professionals. The devices differ primarily on the operating frequency. The most qualitative considered to be modifications on the two contact points of the transmitter. They use thin filters and sensitive sensors.

Models capable of operating at different humidity, and the user selects the mode. Additionally it is worth noting that the market is compact detectors. They have short handles with holders. The models differ in security. Modern devices are made with fuses and electronic control units. The margin of error they are extremely small.

Model features the Minelab X-Terra 305

This metal detector to find gold and coins with the following characteristics: the optimal work distance 55 mm, frequency 20 kHz. The device is able to offer good sensitivity, but it only has one transmitter. The sensor is used without amp. If you believe the buyers that the detector is quickly activated. He has a good unit, and it rarely breaks.

The margin of error is equal to 0.02 %. The device is to be used in a wet environment. He has a well-protected filter. It is also worth noting that the model is not afraid of high temperature. The handle of the detector is rubberized and is very tough. The fuse in this case is absent and is the metal detector to find gold 25620 RUB.

Detector series, Minelab X-Terra 505

This detector to search for gold for beginners. The model uses integral transmitter contact type. Manufacturer provides the calibration function, and the model quickly switched. If you believe the buyers, the finder is allowed to use in high humidity, and even when the maximum temperature reaches 45 degrees.

Frequency of the detector the minimum is 5 kHz, so the battery is fast charging. The margin of error from modification small. If we talk about the shortcomings, it is worth noting a lot of weight. There is only one slot under earphones. In the model, there is no option of vibrate. The drag coefficient of the detector is equal to 3 Ohms. Is a metal detector to detect gold approximately 34900 rubles.