Uniformly loaded opposite magnetic transducer assembly

Details Uniformly loaded opposite magnetic transducer assembly Uniformly loaded opposite magnetic transducer assembly

1979-08-28

1981-04-21

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360109, G11B 548, G11B 2116

Patent

active

042636302

ABSTRACT:
A transducer assembly including a pair of transducers positioned directly opposite each other on the two faces of a flexible magnetic disk and a pair of gimbal springs each for supporting one of the transducers. The gimbal springs are so adjustably bent that the transducers bear with substantially equal, opposite and uniform pressures on the opposite sides of the disk. A method is disclosed for measuring the forces exerted by the transducers acted on by the gimbal springs including the positioning of three balls on the active face of each of the transducers with strain gauges measuring the forces on each of the balls. A first one of the balls is located on the transverse center line of the active face of the transducer while the other balls are equally spaced from this center line; and all of the balls are equally spaced from a longitudinal center line of the face. The gimbal spring for the transducer is then adjustably bent until the force from the transducer on the first ball is twice that of the forces provided by the transducer on the second and third balls so that the transducer will bear with uniform pressures on the disk.

REFERENCES:
patent: 3022494 (1962-02-01), Hansen et al.
patent: 3632900 (1972-01-01), Kurzweil, Jr.
patent: 3706861 (1972-12-01), Giel
patent: 3943569 (1976-03-01), Bettini et al.
patent: 4089029 (1978-05-01), Castrodale et al.

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