Rotary magnetic head inspection method
AssigneeMitsumi Electric Co., Ltd.
InventorsSadao Shimura, Tadashi Adachi
Life of this patent
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Abstract
A rotary magnetic head inspection method for a double azimuth head where two magnetic heads of different azimuthal angles are arranged on a head base, includes the steps of: recording an inspection signal on a running tape by a magnetic head; reproducing the inspection signal by the magnetic head for checking the level of the reproducing signal; and reproducing the inspection signal by the other magnetic head for checking whether the magnetic head is correctly assembled onto a head base through judgement of the reproducing signal.
Claims7
A rotary magnetic head inspection method for a double azimuth head device, where two magnetic heads of different azimuthal angles are arranged on a head base, comprising steps of:
- recording an inspection signal on a running tape by a first magnetic head;
- reproducing the inspection signal by said first magnetic head to derive a first reproducing signal;
- checking a level of the first reproducing signal;
- reproducing said inspection signal by a second magnetic head to derive a second reproducing signal;
- and
- checking whether at least one of said first magnetic head and said second magnetic head is correctly assembled onto the head base by comparing the second reproducing signal to a reference level.
A method for inspecting a recording apparatus having first and second heads assembled on a base, said method comprising:
- recording an inspection signal on a recording medium using said first head;
- reproducing the inspection signal from said recording medium using said second head to derive a first reproduced signal;
- and
- comparing said first reproduced signal with a reference signal to determine whether an abnormality exists in an assembly state of at least one of said first head and said second head.
Dependencies are inferred from the claim text.