Rotary drum centering method and apparatus

Details Rotary drum centering method and apparatus Rotary drum centering method and apparatus

1995-01-20

1996-11-12

Chilcot, Richard

Measuring and testing

Center of gravity; turning moment; metacentric height

73 6507, 73 6509, 360104, G01M 100

Patent

active

055742165

ABSTRACT:
A rotary drum centering method and apparatus with which it is possible to precisely perform the drum centering of a rotary drum necessary for adjusting magnetic heads thereon and accurately obtain a reference in the height direction of the magnetic heads.
In positioning magnetic heads 200 on a rotary drum D, a rotary drum center used as a reference for positioning the magnetic heads is obtained by detecting the outer circumferential portion of the rotary drum by means of detectors 121.

REFERENCES:
patent: 1864677 (1932-06-01), Sparkes
patent: 4687536 (1987-08-01), Hiramatsu et al.
patent: 4882635 (1989-11-01), Sanai
patent: 4982295 (1991-01-01), Yakuwa et al.
patent: 5012372 (1991-04-01), Saito
patent: 5166917 (1992-11-01), Decoster et al.
patent: 5204849 (1993-04-01), Yamada et al.

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