Oberflächeninterferenz-Detektor

Détecteur d'interférence de surface

Surface interference detector

Abstract

Method and device for detecting interferences between surfaces of cooperating elements, including detecting the impact energy generated by an interference between a first surface and a surface protrusion of a second surface, and detecting a protrusion of interest based upon such impact energy. A preferred embodiment includes integration of an interference signal from a transducer associated with one of the surfaces. The integral is used to compare the seriousness of an interference against an interference energy threshold. Embodiments include a head/disk interference (HDI) detector.

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (6)

    Publication numberPublication dateAssigneeTitle
    DE-2241263-A1March 29, 1973Hitachi Electronics, Nisshin Steel Co LtdUeberwachungseinrichtung fuer die oberflaeche sich bewegender gegenstaende
    DE-2252860-A1May 10, 1973Hoogovens Ijmuiden BvEinrichtung zum optischen erfassen von oberflaechenfehlern an einem metallband
    GB-1406470-ASeptember 17, 1975IbmTesting the quality of surfaces
    JP-S62195511-AAugust 28, 1987Hitachi Maxell LtdMagnetic disk defect detecting device
    US-4030830-AJune 21, 1977Atlantic Research CorporationProcess and apparatus for sensing defects on a smooth surface
    US-4452534-AJune 05, 1984Gribanov Dmitry D, Kules Vladimir P, Martynov Appolinary K, Orlov Anatolij A, Semikova Tatyana G, Fonov Sergei D, Moskalik Leonid MMethod of determining geometric parameters of object's surface and device therefor

NO-Patent Citations (1)

    Title
    PATENT ABSTRACTS OF JAPAN vol. 12, no. 48 (P-666)(2895), 13 February 1988; & JP - A - 62195511 (HITACHI MAXELL LTD.) 28.08.1987

Cited By (0)

    Publication numberPublication dateAssigneeTitle