Thin film magnetic transducer head
    1.
    发明授权
    Thin film magnetic transducer head 失效
    薄膜磁性传感器头

    公开(公告)号:US3662119A

    公开(公告)日:1972-05-09

    申请号:US3662119D

    申请日:1970-06-30

    Applicant: IBM

    Abstract: A rectangular thin film transducer head includes a magnetic core composed of overlapping laminations of permalloy film joined together magnetically and electrically, near an air gap, at one end of the rectangle, between the two laminations, which gap couples flux to the magnetic recording medium. Two electrically parallel insulated thin film copper windings starting at the end opposite the gap are deposited about the core joining electrically at the end adjacent to the gap to a conductor coupled to both permalloy laminations which conduct return current through the legs of the core inside of the windings. Alternatively, a single series winding passes around the core and through the gap. The head is manufactured by means of photolithographic, vacuum, and thin film techniques.

    Abstract translation: 矩形薄膜换能器头包括由磁力和电气连接在一起的坡莫合金膜的重叠叠层组成的磁芯,靠近在两个叠片之间的矩形的一端的气隙,该间隙将磁通耦合到磁记录介质。 在与间隙相对的端部处开始的两个电并联绝缘薄膜铜绕组围绕磁芯在与邻近间隙的端部处电连接地沉积到耦合到两个坡莫合金叠片的导体上沉积,导体通过芯的内部的引线 绕组。 或者,单个串联绕组绕过芯并穿过间隙。 头部通过光刻,真空和薄膜技术制造。

    Error compensating deflection coils in a conducting magnetic tube
    2.
    发明授权
    Error compensating deflection coils in a conducting magnetic tube 失效
    误差补偿导磁管中的偏转线圈

    公开(公告)号:US3911321A

    公开(公告)日:1975-10-07

    申请号:US39112073

    申请日:1973-08-27

    Applicant: IBM

    Inventor: WARDLY GEORGE A

    CPC classification number: H01J29/706 H01J29/76 H01J37/14 H01J37/1475

    Abstract: This invention relates to an error compensating arrangement for use with the deflection system in a conducting magnetic tube such as that of an electron microscope or the like. More particularly, compensating coils are provided to correct time lag errors due to eddy currents set up in permeable magnetic enclosures which surround the principal deflection coils and act essentially as pole-pieces.

    Abstract translation: 本发明涉及一种与诸如电子显微镜等的导电磁性管中的偏转系统一起使用的误差补偿装置。 更具体地,提供补偿线圈以校正由围绕主偏转线圈的可渗透磁性壳体中设置的涡流引起的时间差误差,并且基本上作为极点起作用。

    Electrostatic prism
    3.
    发明授权
    Electrostatic prism 失效
    静电原理

    公开(公告)号:US3679896A

    公开(公告)日:1972-07-25

    申请号:US3679896D

    申请日:1969-12-23

    Applicant: IBM

    Inventor: WARDLY GEORGE A

    CPC classification number: H01J29/74 H01J49/48

    Abstract: An electrostatic field to manipulate charged particles in a narrow band filter prism and energy discrimination prism arrangement is obtained by employing high transparency opposing screen electrodes. Adjacent each screen electrode particle attractor apparatus act to attract all particles outside the narrow band of particles. In the narrow band filter arrangement collector apparatus are provided to collect particles within the narrow band while in the discrimination arrangement collector apparatus are provided to collect both particles having energies above the narrow band and particles having energies below the narrow band.

    Abstract translation: 通过采用高透明度的相对的屏幕电极,可获得用于操纵窄带滤光片棱镜中的带电粒子和能量鉴别棱镜装置的静电场。 相邻的每个屏幕电极吸引器装置用于吸引粒子窄带外的所有颗粒。 在窄带滤波器布置收集器装置中,用于收集窄带内的颗粒,同时在识别装置收集装置中设置收集具有高于窄带的能量的颗粒和具有低于窄带的能量的颗粒。

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