Piezoelectric nanopositioner
AssigneePhase Metrics
InventorRaymond Karam
Life of this patent
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Abstract
A positioner which can move an object such as a magnetic recording head. The positioner includes a housing with an inner opening. The housing is located within a coordinate system that includes an x axis, a y axis and a z axis. An electrical/mechanical transducer is coupled to the inner opening of the housing by at least two flexure joint inserts. Expansion or contraction of the transducer creates a movement of the housing along the x or y axis. The flexure joint inserts allow the transducer to be adjusted within the inner opening during assembly to minimize the out of plane movement of the housing along the z axis.
Claims6
A tester for testing a recording head, comprising:
- a disk;
- a spindle that rotates said disk;
- a fixture that supports the recording head;
- a first positioner that moves the recording head adjacent to said disk;
- a second positioner that is coupled to said first positioner and which moves the recording head relative to said disk, said second positioner including;
- a housing that is coupled to said fixture and has a first inner opening;
- a first electrical/mechanical transducer that is located within said first inner opening;
- at least two first flexure joint inserts that couple said first electrical/mechanical transducer to said housing;
- a driver circuit that provides an electric field to said first electrical/mechanical transducer to induce a movement of said housing;
- a tester circuit that is coupled to the recording head to test the recording head.
Dependencies are inferred from the claim text.