公开(公告)号：CA1242272A

公开(公告)日：1988-09-20

申请号：CA503284

申请日：1986-03-04

Applicant: IBM

Inventor： BANDARA UPALI ,  ELSNER GERHARD ,  HEINRICH VOLKER ,  HINKEL HOLGER ,  LANG ARTUR ,  PRINZ ERWIN ,  STEINER WERNER ,  ZAPKA WERNER

IPC: G11B5/84 ,  G01N3/56 ,  G01N13/00 ,  G01N27/00 ,  G11B5/00 ,  G11B5/012 ,  G11B5/58 ,  G11B17/32 ,  G11B33/10 ,  G11B5/455 ,  G01N17/00 ,  G01N19/00

Abstract: SYSTEM FOR TESTING MAGNETIC HEAD/DISK INTERFACES Method for measuring the properties of a slider/disk interface in a magnetic disk storage apparatus by measuring a triboelectric current flowing between disk and slider. Rotational speed is adjusted between 100 and 500 rpm so as to obtain a frictional contact between disk and slider. The shape of the tribo current curve obtained during the measuring time interval is analyzed. An early maximum of the tribo current amplitude and a subsequent continual decay indicates a good slider/disk interface and a long lifetime.