US 7,532,006 B2
Stand-alone quasi-static tester
Nahum Guzik, Palo Alto, Calif. (US); Adrian Hodgkinson, Alameda, Calif. (US); and Forest Ray, Redwood City, Calif. (US)
Assigned to Guzik Technical Enterprises, Mountain View, Calif. (US)
Filed on Jul. 27, 2007, as Appl. No. 11/881,815.
Claims priority of provisional application 60/922096, filed on Apr. 06, 2007.
Prior Publication US 2008/0247091 A1, Oct. 09, 2008
Int. Cl. G01R 33/12 (2006.01)
U.S. Cl. 324—210 27 Claims
OG exemplary drawing
 
1. An apparatus for testing a magnetic head in a head gimbal assembly comprising:
a fixed mount adapted to receive the head gimbal assembly such that the head is in a fixed test position; and
a movable mount comprising a test magnet and a camera comprising an objective lens, said test magnet and camera being movable in fixed relation to each other;
wherein
the camera is configured to observe a feature on the head;
the movable mount is configured to move the test magnet to a desired position relative to the fixed test position based on positioning information determined from the observation of the feature, and
the test magnet is configured to provide a magnetic field at the test position for testing the head.