What are the factors that affect metal detectors?

Several factors that affect the metal detector: first, the frequency of the conversion coil, the emission frequency of the conversion coil and the size of the metal sheet will directly affect the detection results. Secondly, the phase angle of the conversion coil leads to the phase relationship of various metals, and each different metal can generate different detection signals. Therefore, the detection signal can be regarded as a vector, the phase angle represents the metal, and the vector length represents the size of the metal sheet. Third, the product effect. If the product has conductivity, the product usually carries some moisture, which can be said to have the product effect. From the technical point of view of metal detection, this conductive product is no different from metal. Sensitivity of metal detectors. The sensitivity of the metal detector varies according to the magnetic field distribution. The closer to the center line, the lower the sensitivity. The sensitivity of the center line is the lowest, so the test sample should pass the center line during the test.