MAGNETIC MARKER AND METHOD FOR MANUFACTURING SAME

摘要

A magnetic marker and a method for manufacturing the same are provided to surely gives warning from a vibration receiving side, by surely generating vibration. A magnetic marker(10) has a bent vibration plate(15) and a flat vibration plate(16) to be magnetostrictively vibrated in a main body(12A) of a case(12). A low coercive force magnet(20) is arranged on a main surface of an opening unit of the case to be magnetized and demagnetized. The magnetic marker is attached to a commercial product(30) by peeling a peeling sheet(24) of an adhesive tape(22). In the magnetic marker, as far as the low coercive force magnet is not demagnetized, two sheets of the vibrating plates(15,16) magnetostrictively vibrate upon passing through a gate. Therefore, the vibration receiving side is surely made to give an alarm.