EVALUATION METHOD OF PRODUCT COMPRISING SECURITY MAGNETIC ELEMENT

摘要

PURPOSE: An authenticity distinction method of an object is provided to distinguish the authenticity of the object by detecting the change of a microwave absorption pattern according to a magnetic substance. CONSTITUTION: A magnetism security element is magnetized by using an external magnetic field. The magnetism security element detects a magnetism pattern by using an MR(Magnetic Reluctance) sensor. The magnetism pattern is compared with reference date which is a standard of authenticity distinction. The magnetism security element irradiates an object with microwaves having a specific wavelength and detects a micro absorption wavelength. The magnetism pattern is secondarily compared with the reference date.