Magnetic data eraser

摘要

The magnetic data eraser includes: a mounting and immobilizing tray on which a magnetic recording medium is mounted, the mounting tray being inclined at an angle of 60±10 degrees to the horizontal; a magnetizer that is encircled by a magnetizing coil, the magnetizer having a hollow portion into which the mounting and immobilizing tray is inserted; and a controller that causes an electric current to flow as an excitation current through the magnetizing coil, the excitation current generating a magnetic field that erases data stored in the magnetic recording medium.

主权项

1. A magnetic data eraser, comprising:
a mounting and immobilizing tray on which magnetic recording media are mounted, the mounting and immobilizing tray being inclined at a predetermined angle to the horizontal, the magnetizing zone having a section of a predetermined length at a front end of the zone and at a back end of the zone which ensure that the magnetic recording media to be erased is placed only between the sections in order to avoid influence of magnetic field flux decreases and/or flux angle changes at the front and back ends of the zone; a controller that is configured to cause an electric current to flow as an excitation current through a magnetizing coil, the excitation current generating a magnetic field to erase data stored in the magnetic recording medium.