When buying metal detectors, the detection depth is an important parameter. The detection depth is not enough, and it is not detected at all. Generally speaking, if you want to detect a product with a depth of five meters, you need to buy a metal detector with a depth of about eight meters to ensure its detection effect. How deep the underground metal detector can detect is not only related to the detector itself, but also related to the detection environment and the detected metal.
Generally speaking, the detection range of metal detectors in the market is influenced by many factors, such as brand, model and the size of the detected object. Generally, the handheld metal detector is about 1 to 40cm, the disk underground metal detector is about 1- 15m, and the remote underground metal detector is about 1 to 30 meters deep.
Second, how to improve the detection distance of metal detectors
The maximum detection distance of metal detectors is generally fixed, which is mainly related to hardware. In the actual use process, the maximum detection distance may not be reached for various reasons, such as the size of objects, soil conditions, etc. So what methods can be used to improve the detection distance of metal detectors?
In general, the detection distance of metal detectors can only be increased at the theoretical depth, and the specific method to improve it is to improve the sensitivity, but this method may lead to false alarm signals and increase power consumption; If you want to increase the maximum detection distance, you can modify the detection disk. If a longer detection distance is needed, it is recommended to buy a metal detector with deeper detection depth.
3. What are the factors that affect the detection distance of metal detectors?
Metal detectors often fail to reach the depth marked by instruments in actual detection. There are many reasons for this situation, including:
1, metal detected
The detection depth of metal detection instrument has a great relationship with the area, shape and weight of the metal to be detected. Generally speaking, the larger the area, the more the number and the greater the corresponding detection depth. On the contrary, the smaller the area, the less the number and the smaller the corresponding depth.
2. Soil quality
Under different soil conditions, the detection depth will be different. For example, when the soil is wet or dense, the signal intensity of the detected metal will be weakened, thus reducing the detection depth of the metal detector.
3, metal burial time
The farther the metal is buried, the deeper the detection depth will be, because the metal will gradually oxidize after being buried underground for a long time, which will lead to the spread of metal rust around and react with the surrounding soil to produce a strong magnetic field, which will increase the area of the metal and the intensity of the signal.
4. Size and shape of metal
Target size, in the same environment, the larger the target volume, the larger the signal range and the deeper the detection, and vice versa. The shape of the target, a flat coin is usually deeper than a long wire, and the larger the cross-sectional area, the deeper the probe.
5. Technical experience
The same metal detector, the same target, experienced veteran will definitely detect deeper and more accurately.