What Is an Induction Loop?

Loop inductors detect metal objects by detecting changes in the inductance of the metal objects on the induction coil. The coil is wound with multiple turns of wire, buried under the road, and filled with cement. The coil leads are connected to CHD-DGII. When a metal object passes through the induction coil, the inductance of the guide coil changes. This change is detected by CHD-DGII, it is judged that there is a metal object through the calculation of the internal intelligent controller, and the output relay outputs a signal. Due to the intelligent control function of the microprocessor, the sensitivity of CHD-DGII can meet various requirements, and it can also match the induction coils and leads of different sizes.