Magnetic recorder test article and methods

Details Magnetic recorder test article and methods Magnetic recorder test article and methods

G - Physics

11

B

352/19

G11B 5/09 (2006.01) G11B 5/588 (2006.01) G11B 20/18 (2006.01)

Patent

CA 1059617

Abstract An improved magnetic tape test article includes a plurality of longitudinally spaced-apart test sections. Some of the test sections are re- peated to facilitate recorder tests under different tape wrap conditions. One of the tests is a compound test enabling several simultaneous measurements of several parameters of the recorder. The tests are particularly adaptable for helical scan digital sig- nal recorders. The tests measure parameters such as head to medium spacing, tracking (skew, servo offset and the like), readback circuit performance, including clocking, phase tolerances, error detection and cor- rection operations, response to dropouts, resynchro- nization response and amplitude tolerances. Profile of the spacing between the record medium and the head is measured over the length of the recorded path around the cylindrical mandrel.

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