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How to buy the right treasure detector?


Release time:

2022-04-20

Buying a treasure detector mainly depends on two aspects: one is the reputation of the treasure detector, that is, the evaluation of people who have bought the treasure detector; the other is practicality, that is, how do you want to use the treasure detector and what to do with it, everything is targeted. Different treasure hunters are suitable for different places and different scope of supply. How to buy the right treasure detector?

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How to buy the right treasure detector?

Buying a treasure detector mainly depends on two aspects: one is the reputation of the treasure detector, that is, the evaluation of people who have bought the treasure detector; the other is practicality, that is, how do you want to use the treasure detector and what to do with it, everything is targeted. Different treasure hunters are suitable for different places and different scope of supply. How to buy the right treasure detector?

How to buy the right treasure detector?

To buy a machine first, you must first choose a company with good reputation and reputation to buy it. Don't covet low prices, find small companies or individuals to buy. After-sales service and quality are very important to Tambo. Especially for friends who order online, special reminder: don't be greedy for petty gain, easy to be deceived! Choose whether to use analog or digital signals for detection before purchasing. Generally speaking, the digital signal of the underground treasure detector is more sensitive. Detection is based on the molecular frequency of each metal. Secondary professionals usually use a variety of underground treasure hunters. The advantages of this instrument are a wide range of search and detection, accurate positioning, and the ability to identify the type of metal separately.

How to Test a Treasure Detector

This machine is too simple to detect only the metal on the surface. The sensitivity is very low, belonging to the magnetic wave detection, the detection depth is shallow. It is recommended that you understand the performance of each machine before buying and carefully consider which one is suitable for you. There are no technical requirements for small-scale testing. The ordinary simple detector is suitable for low level scholars. It has the characteristics of simple operation, simple assembly, small detection range, convenient carrying and detection. Strong mobility and correct positioning.

What is the cause of the alarm failure of the treasure detector?

In fact, the false alarm of treasure detectors is often caused by non-macro information, that is, interference information that is often invisible to the human eye, such as radio frequency interference, sounds from various sound sources, etc. It will interfere with the ultrasonic detector and cause false alarms; various heat sources, even sunlight, will cause huge temperature changes in a seemingly calm environment, leading to false alarms of the temperature detector. In this way, it is clear that false alarms do not occur out of thin air, but have certain external stimuli. External interference causes the data of the internal circuit of the treasure detector to change. When the alarm definition value is reached, false alarm will appear.

Most of the traditional treasure detector uses analog circuit, the detector part of the sensor to receive the detection signal is often very weak, so it needs a large amplifier circuit, amplifier circuit often need frequency discrimination circuit and comparison circuit. When the outside temperature and humidity changes, these analog circuits will drift, thereby changing the magnification. The signal-to-noise ratio of the weak signal to be amplified is limited, and various background noise signals will be superimposed on the useful detection signal. Improper amplification of background noise caused by drift can lead to false alarms. In addition, the analysis method of the treasure detector signal will also affect the detection results; simple analog circuit analysis signal amplification, simple frequency comparison and other methods will make the analysis results uncertain, thus misjudged as false alarm.

The reasons for underreporting may also be technical limitations. In the component manufacturing process, the whole treasure detector and PCB board welding assembly process will appear poor contact, flux corrosion and other reasons. After using for a period of time, tiny sparks will be generated, the noise will become larger, and redundant signals will appear in the introduced circuit, resulting in frequent false alarms. The transmission rate and detection range of the conveyor belt in the industrial production line will also affect the sensitivity of the detector, which requires the operator to limit the transmission rate of the conveyor belt to a range, and the distance between the metal detector and the detected metal object should also be appropriately selected.



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