Variable pneumatic loader for testing a disk drive head gimbal a

Details Variable pneumatic loader for testing a disk drive head gimbal a Variable pneumatic loader for testing a disk drive head gimbal a

1997-08-28

1998-10-06

Psitos, Aristotelis M.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360103, G11B 2112

Patent

active

058186581

ABSTRACT:
An HGA loader which utilizes sub-ambient air pressure to move a magnetic head of the HGA relative to a test surface. The HGA is mounted to a clamp and located adjacent to a nozzle. The nozzle draws in air through an orifice to create a sub-ambient pressure region below the suspension. Ambient air pressure will flow into the sub-ambient void created by the nozzle located below the suspension beam of tge HGA. The air flow will move the suspension beam away from the disk surface and unload the HGA. The level of the sub-ambient pressure and the separation between the head and disk can be varied by a computer controlled regulator valve. The loader can be used in a flying height tester where calibration is obtained by taking optical data while varying the flying height by changing the sub-ambient pressure. The sub-ambient pressure created by the orifice causes the HGA to bend about its natural pivot point or the bend radius of the suspension or load beam. In doing so, the loader does not create an additional slider angle during a test procedure nor does it introduce any mechanical sliding motion which could generate debris.

REFERENCES:
patent: 5390059 (1995-02-01), Tokuyama et al.

Affiliated with

Also associated with

Rating

Variable pneumatic loader for testing a disk drive head gimbal a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Variable pneumatic loader for testing a disk drive head gimbal a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variable pneumatic loader for testing a disk drive head gimbal a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-85510