Apparatus equipped with crack detection circuit and detection system

A crack detection system, comprising:

• an apparatus, comprising:
• a crack detection circuit configured to detect a crack in an edge region of a main body;
• the main body coupled to the crack detection circuit and comprising:
• a top surface;
• a bottom surface;
• and
• a side surface coupled between the top surface and the bottom surface;
• a detection control circuit disposed on the main body;
• and
• a detection coil disposed on the main body and distributed on an edge of the main body, wherein at least a part of the detection coil is disposed surrounding the side surface, wherein two ends of the detection coil are electrically coupled to the detection control circuit to form a closed-loop detection circuit, wherein the detection coil comprises a plurality of detection sections sequentially coupled from head-to-tail, wherein adjacent detection sections are non-collinear, wherein the detection coil surrounds the side surface to extend for at least two circles, wherein the at least two circles are arranged in a direction perpendicular to the side surface, and wherein detection line sections of adjacent circles are spaced from each other;
• a detection device coupled to the apparatus and comprising:
• a coupling coil;
• and
• a detection device control circuit electrically coupled to the coupling coil and configured to:
• provide an electrical signal for the coupling coil to implement coupling between the coupling coil and the detection coil of the apparatus and to generate an induced current to supply power to the detection control circuit of the apparatus;
• and
• detect the crack on the main body by determining coupling or decoupling of the detection coil.