EVALUATING METHOD FOR SLIDING SURFACE OF MAGNETIC HEAD OF MAGNETOOPTICAL DISK AND EVALUATING DEVICE

摘要

PURPOSE: To exactly analyze the behavior of friction and wear of a sliding surface at the time of sliding by continuously focusing on the sliding surface on which the magnetic head slides on a magnetooptical disk and observing the surface. ;CONSTITUTION: A magnetic head 3 slides on a surface on the side of the protection film of a magnetooptical disk 1 and a microscope main body 4 is arranged on the opposite side of the magnetic head 3 through the disk 1. A substrate coated with ultraviolet curing resin for protecting the disk 1 is used and a recording film is formed so that the light ray of the microscope is made to be transmitted through the substrate in order to observe the sliding surface of the disk 1. Thus, by continuously focusing on the sliding surface when the magnetic head 3 slides on the disk 1, the change of the sliding surface caused by wraping at the time of sliding is observed since the measuring part of the microscope is provided. Consequently, the analysis of the behevior of friction and wear of the disk 1 and the head 3 at the time of sliding is exactly performed.;COPYRIGHT: (C)1994,JPO&Japio