中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

20 records (took 0.036 seconds)

    Resistance temperature sensors for head-media and asperity detection
    18.
    发明授权
    Resistance temperature sensors for head-media and asperity detection 有权
    电阻温度传感器用于头部介质和粗糙度检测

    公开(公告)号：US09230594B2

    公开(公告)日：2016-01-05

    申请号：US14287419

    申请日：2014-05-27

    Applicant: Seagate Technology LLC

    Inventor： Gary Joseph Kunkel ,  Huazhou Lou ,  Declan Macken ,  Timothy William Stoebe

    IPC: G11B21/02 ,  G11B20/10 ,  G11B5/60

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

    Abstract: A temperature sensor of a head transducer measures temperature near or at the close point. The measured temperature varies in response to changes in spacing between the head transducer and a magnetic recording medium. A detector is coupled to the temperature sensor and is configured to detect a change in a DC component of the measured temperature indicative of onset of contact between the head transducer and the medium. Another head transducer configuration includes a sensor having a sensing element with a high temperature coefficient of resistance to interact with asperities of the medium. Electrically conductive leads are connected to the sensing element and have a low temperature coefficient of resistance relative to that of the sensing element, such thermally induced resistance changes in the leads have a negligible effect on a response of the sensing element to contact with the asperities.

    Abstract translation: 头传感器的温度传感器测量靠近或接近的温度。 测量的温度响应于头部换能器和磁记录介质之间的间隔的变化而变化。 检测器耦合到温度传感器并且被配置为检测指示头部换能器和介质之间的接触开始的测量温度的DC分量的变化。 另一个头部传感器配置包括传感器，该传感器具有具有高温度系数的传感元件，以与介质的粗糙度相互作用。 导电引线连接到感测元件并且具有相对于感测元件的电阻的低温度系数，引线中的这种热感应电阻变化对感测元件与凹凸接触的响应具有可忽略的影响。

    HEAD TRANSDUCER WITH MULTIPLE RESISTANCE TEMPERATURE SENSORS FOR HEAD-MEDIUM SPACING AND CONTACT DETECTION
    19.
    发明申请
    HEAD TRANSDUCER WITH MULTIPLE RESISTANCE TEMPERATURE SENSORS FOR HEAD-MEDIUM SPACING AND CONTACT DETECTION 有权
    具有多电阻温度传感器的头传感器用于中间间隔和接触检测

    公开(公告)号：US20150255102A1

    公开(公告)日：2015-09-10

    申请号：US14720299

    申请日：2015-05-22

    Applicant: Seagate Technology LLC

    Inventor： Michael Thomas Johnson ,  Dongming Liu ,  Huazhou Lou ,  Declan Macken ,  Timothy William Stoebe ,  James Gary Wessel ,  Xuan Zheng

    IPC: G11B5/60

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

    Abstract: 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.

    Abstract translation: 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
    20.
    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：US09036290B2

    公开(公告)日：2015-05-19

    申请号：US14457678

    申请日：2014-08-12

    Applicant: Seagate Technology LLC

    Inventor： Michael Thomas Johnson ,  Dongming Liu ,  Huazhou Lou ,  Declan Macken ,  Timothy William Stoebe ,  James Gary Wessel ,  Xuan Zheng

    IPC: G11B21/02 ,  G11B20/10 ,  G11B5/60

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

    Abstract: 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.

    Abstract translation: 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。

Patent Agency Ranking