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    Head transducer with multiple resistance temperature sensors for head-medium spacing and contact detection
    1.
    发明授权
    Head transducer with multiple resistance temperature sensors for head-medium spacing and contact detection 有权
    头传感器，具有多个电阻温度传感器，用于头中间距和接触检测

    公开(公告)号：US08810952B2

    公开(公告)日：2014-08-19

    申请号：US13299139

    申请日：2011-11-17

    申请人： Michael T. Johnson ,  Dongming Liu ,  Huazhou Lou ,  Declan Macken ,  Timothy W. Stoebe ,  James G. Wessel ,  Xuan Zheng

    发明人： Michael T. Johnson ,  Dongming Liu ,  Huazhou Lou ,  Declan Macken ,  Timothy W. Stoebe ,  James G. Wessel ,  Xuan Zheng

    IPC分类号： G11B21/02

    CPC分类号： G11B5/607 ,  G01K13/00 ,  G11B5/024 ,  G11B5/3133 ,  G11B5/6011 ,  G11B5/6076 ,  G11B7/0948 ,  G11B7/121 ,  G11B20/10 ,  G11B27/36

    摘要： A head transducer, configured to interact with a magnetic recording medium, includes a first sensor having a temperature coefficient of resistance (TCR) and configured to produce a first sensor signal, and a second sensor having a TCR and configured to produce a second sensor signal. One of the first and second sensors is situated at or near a close point of the head transducer in relation to the magnetic recording medium, and the other of the first and second sensors spaced away from the close point. Circuitry is configured to combine the first and second sensor signals and produce a combined sensor signal indicative of one or both of a change in head-medium spacing and head-medium contact. Each of the sensors may have a TCR with the same sign (positive or negative) or each sensor may have a TCR with a different sign.

    摘要翻译： 被配置为与磁记录介质相互作用的头传感器包括具有温度系数电阻（TCR）并被配置为产生第一传感器信号的第一传感器，以及具有TCR并被配置为产生第二传感器信号的第二传感器 。 第一传感器和第二传感器中的一个位于头部换能器相对于磁记录介质的接近点附近，并且第一传感器和第二传感器中的另一个与近端点间隔开。 电路被配置为组合第一和第二传感器信号并产生指示头 - 介质间隔和头 - 介质接触的变化中的一个或两个的组合的传感器信号。 每个传感器可以具有相同符号（正或负）的TCR，或者每个传感器可以具有不同符号的TCR。

    Head Transducer with Multiple Resistance Temperature Sensors for Head-Medium Spacing and Contact Detection
    2.
    发明申请
    Head Transducer with Multiple Resistance Temperature Sensors for Head-Medium Spacing and Contact Detection 有权
    头传感器，具有多个电阻温度传感器，用于头中间距和接触检测

    公开(公告)号：US20120120522A1

    公开(公告)日：2012-05-17

    申请号：US13299139

    申请日：2011-11-17

    申请人： Michael T. Johnson ,  Dongming Liu ,  Huazhou Lou ,  Declan Macken ,  Timothy W. Stoebe ,  James G. Wessel ,  Xuan Zheng

    发明人： Michael T. Johnson ,  Dongming Liu ,  Huazhou Lou ,  Declan Macken ,  Timothy W. Stoebe ,  James G. Wessel ,  Xuan Zheng

    IPC分类号： G11B5/455 ,  G11B21/12

    CPC分类号： G11B5/607 ,  G01K13/00 ,  G11B5/024 ,  G11B5/3133 ,  G11B5/6011 ,  G11B5/6076 ,  G11B7/0948 ,  G11B7/121 ,  G11B20/10 ,  G11B27/36

    摘要： A head transducer, configured to interact with a magnetic recording medium, includes a first sensor having a temperature coefficient of resistance (TCR) and configured to produce a first sensor signal, and a second sensor having a TCR and configured to produce a second sensor signal. One of the first and second sensors is situated at or near a close point of the head transducer in relation to the magnetic recording medium, and the other of the first and second sensors spaced away from the close point. Circuitry is configured to combine the first and second sensor signals and produce a combined sensor signal indicative of one or both of a change in head-medium spacing and head-medium contact. Each of the sensors may have a TCR with the same sign (positive or negative) or each sensor may have a TCR with a different sign.

    摘要翻译： 被配置为与磁记录介质相互作用的头传感器包括具有温度系数电阻（TCR）并被配置为产生第一传感器信号的第一传感器，以及具有TCR并被配置为产生第二传感器信号的第二传感器 。 第一传感器和第二传感器中的一个位于头部换能器相对于磁记录介质的接近点附近，并且第一传感器和第二传感器中的另一个与近端点间隔开。 电路被配置为组合第一和第二传感器信号并产生指示头 - 介质间隔和头 - 介质接触的变化中的一个或两个的组合的传感器信号。 每个传感器可以具有相同符号（正或负）的TCR，或者每个传感器可以具有不同符号的TCR。

    ESD shunt for transducing head
    5.
    发明授权
    ESD shunt for transducing head 有权
    ESD分流头用于传感头

    公开(公告)号：US07119995B2

    公开(公告)日：2006-10-10

    申请号：US10763834

    申请日：2004-01-22

    申请人： Eric L. Granstrom ,  James G. Wessel

    发明人： Eric L. Granstrom ,  James G. Wessel

    IPC分类号： G11B5/127

    CPC分类号： G11B5/3906 ,  G11B5/3166 ,  G11B5/40 ,  G11B5/455

    摘要： A transducing head includes a sensor element having a plurality of terminal pads and a shunt electrically connected with the sensor element in parallel for protecting the sensor element from electrical damage during fabrication of the transducing head. The shunt includes one or more fuses, where the shunt configured to be repeatedly tested around during fabrication to allow testing of the sensor element. The shunt is structured to be permanently electrically removable prior to operation of the transducing head by directing a shunt removal current through the shunt which effectively creates an open circuit in the shunt without causing a damaging current to flow in the sensor element. In another embodiment, the transducing head includes a shunt electrically connected with the sensor element in parallel. The shunt includes a plurality of removable resistive elements, each resistive element having an element resistance, and an adjustable transducing head resistance defined by the sensor resistance and the element resistances. Sequential removal of some or all of the resistive elements establishes a desired transducing head resistance.

    摘要翻译： 传感头包括具有多个端子焊盘的传感器元件和与传感器元件并联电连接的分流器，以在传感器头的制造过程中保护传感器元件免受电气损坏。 分流器包括一个或多个保险丝，其中分流器构造成在制造期间被重复测试以允许传感器元件的测试。 分流器被构造为在通过分流器引导分流器电流通过分流器操作之前永久地电可移除，其在分流器中有效地产生开路，而不会在传感器元件中流动损坏的电流。 在另一个实施例中，换能头包括与传感器元件并联电连接的分流器。 分流器包括多个可移除的电阻元件，每个电阻元件具有元件电阻，以及由传感器电阻和元件电阻限定的可调节的传感头电阻。 一些或所有电阻元件的顺序去除建立了所需的传感头电阻。