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    • 1. 发明授权
    • Shielded perpendicular magnetic recording head
    • 屏蔽垂直磁记录头
    • US08432638B2
    • 2013-04-30
    • US12410485
    • 2009-03-25
    • Paolo G. Sechi
    • Paolo G. Sechi
    • G11B5/127
    • G11B5/1278G11B5/112G11B5/3116G11B5/3146
    • A magnetic recording head for perpendicular magnetic recording includes energizing means, a recording pole, and a return pole. The recording pole narrows to a tip region with leading and trailing write edges separated by first and second side edges. The tip region provides a low reluctance path for magnetic flux generated by the energizing means. The return pole has a shield flare projecting towards the trailing write edge. A gap separates a leading edge of the shield flare from the trailing write edge. The shield flare diverts magnetic flux from reaching the tip region, thereby shielding the recording medium beneath the shield flare from the magnetic field while the side edges of the tip region and the recording medium beneath the gap are unshielded. A rear flare smoothes the discontinuity at the trailing edge of the return pole, thus reducing the peak magnetic field under the return pole.
    • 用于垂直磁记录的磁记录头包括激励装置,记录极和返回极。 记录极窄到尖端区域,其中前缘和后边写入边缘由第一和第二侧边缘分开。 尖端区域为由激励装置产生的磁通提供低磁阻路径。 返回杆具有向后写入边缘突出的屏蔽喇叭。 一个间隙将屏蔽喇叭口的前缘与尾随的写入边缘分开。 屏蔽火炬将磁通量转移到到达尖端区域,从而将屏蔽火炬下方的记录介质从磁场屏蔽,同时尖端区域的侧边缘和间隙下方的记录介质是非屏蔽的。 后方光斑平滑了返回极后缘的不连续,从而减小了返回极下的峰值磁场。
    • 2. 发明授权
    • Displacement measurement system and method using magnetic encodings
    • 位移测量系统和使用磁编码的方法
    • US08970208B2
    • 2015-03-03
    • US13024778
    • 2011-02-10
    • Kurt D. FulkersonDonald C. Arns, Jr.Paolo G. Sechi
    • Kurt D. FulkersonDonald C. Arns, Jr.Paolo G. Sechi
    • G01B7/30G01P3/487G01L3/10
    • G01P3/487G01L3/104G01L3/109
    • A measurement system includes a rotating member configured to transfer mechanical energy to a point of use. The member has at a surface thereof one or more circumferentially oriented bands of magnetizable material. Each band has a magnetic pattern comprised of a plurality of transitions magnetically recorded in the magnetizable material of that band. A magnetic-field sensor is disposed sufficiently near each band of magnetizable material to sense a magnetic pattern recorded in that band as the member rotates. Each magnetic-field sensor generates signals in response to the magnetic pattern sensed by that magnetic-field sensor. Processing electronics is in communication with each magnetic-field sensor to receive the signals generated by that magnetic-field sensor while the member rotates and to dynamically compute from the signals a measurement associated with a performance of the rotating member.
    • 测量系统包括被配置为将机械能传递到使用点的旋转构件。 构件在其表面上具有一个或多个圆周取向的可磁化材料带。 每个带具有由磁性记录在该带的可磁化材料中的多个跃迁组成的磁图案。 磁场传感器设置在每个可磁化材料带的附近,以便在构件旋转时感测记录在该带中的磁图案。 每个磁场传感器响应由该磁场传感器感测到的磁性图案产生信号。 处理电子设备与每个磁场传感器通信,以在构件旋转时接收由该磁场传感器产生的信号,并且根据信号动态地计算与旋转构件的性能相关联的测量。
    • 3. 发明申请
    • Shielded Perpendicular Magnetic Recording Head
    • 屏蔽垂直磁记录头
    • US20100246061A1
    • 2010-09-30
    • US12410485
    • 2009-03-25
    • Paolo G. Sechi
    • Paolo G. Sechi
    • G11B5/127
    • G11B5/1278G11B5/112G11B5/3116G11B5/3146
    • A magnetic recording head for perpendicular magnetic recording includes energizing means, a recording pole, and a return pole. The recording pole narrows to a tip region with leading and trailing write edges separated by first and second side edges. The tip region provides a low reluctance path for magnetic flux generated by the energizing means. The return pole has a shield flare projecting towards the trailing write edge. A gap separates a leading edge of the shield flare from the trailing write edge. The shield flare diverts magnetic flux from reaching the tip region, thereby shielding the recording medium beneath the shield flare from the magnetic field while the side edges of the tip region and the recording medium beneath the gap are unshielded. A rear flare smoothes the discontinuity at the trailing edge of the return pole, thus reducing the peak magnetic field under the return pole.
    • 用于垂直磁记录的磁记录头包括激励装置,记录极和返回极。 记录极窄到尖端区域,其中前缘和后边写入边缘由第一和第二侧边缘分开。 尖端区域为由激励装置产生的磁通提供低磁阻路径。 返回杆具有向后写入边缘突出的屏蔽喇叭。 一个间隙将屏蔽喇叭口的前缘与尾随的写入边缘分开。 屏蔽火炬将磁通量转向到达尖端区域,从而将屏蔽喇叭下方的记录介质从磁场屏蔽起来,而尖端区域的侧边缘和间隙下方的记录介质是非屏蔽的。 后方光斑平滑了返回极后缘的不连续,从而减小了返回极下的峰值磁场。
    • 4. 发明授权
    • Real-time transient pulse monitoring system and method
    • 实时瞬态脉冲监测系统及方法
    • US06639538B1
    • 2003-10-28
    • US10145492
    • 2002-05-14
    • Paolo G. SechiRichard C. Adamo
    • Paolo G. SechiRichard C. Adamo
    • H03M112
    • G01W1/16G01R19/2509G01R19/2513Y02A90/14
    • Described are a system and method for monitoring and characterizing a stimulus in order to detect transient phenomena. An analog signal represents the stimulus. Conversion circuitry receives the analog signal and continuously converts the analog signal into digital data. Digital circuitry continuously receives the digital data from the conversion circuitry and dynamically computes from the digital data a value that characterizes a parameter of the stimulus while the digital circuitry continuously receives new digital data from the conversion circuitry. The digital circuitry can be reconfigured to characterize a different parameter for the same type or for a different type of stimulus.
    • 描述了用于监测和表征刺激以便检测瞬态现象的系统和方法。 模拟信号表示刺激。 转换电路接收模拟信号并将模拟信号连续转换为数字数据。 数字电路从转换电路连续地接收数字数据,并且在数字电路从转换电路连续接收新的数字数据时,从数字数据中动态地计算表征刺激参数的值。 数字电路可以重新配置为表征相同类型或不同类型刺激的不同参数。
    • 5. 发明申请
    • Displacement Measurement System and Method using Magnetic Encodings
    • 位移测量系统和使用磁编码的方法
    • US20110193552A1
    • 2011-08-11
    • US13024778
    • 2011-02-10
    • Kurt D. FulkersonDonald C. Arns, JR.Paolo G. Sechi
    • Kurt D. FulkersonDonald C. Arns, JR.Paolo G. Sechi
    • G01B7/30
    • G01P3/487G01L3/104G01L3/109
    • A measurement system includes a rotating member configured to transfer mechanical energy to a point of use. The member has at a surface thereof one or more circumferentially oriented bands of magnetizable material. Each band has a magnetic pattern comprised of a plurality of transitions magnetically recorded in the magnetizable material of that band. A magnetic-field sensor is disposed sufficiently near each band of magnetizable material to sense a magnetic pattern recorded in that band as the member rotates. Each magnetic-field sensor generates signals in response to the magnetic pattern sensed by that magnetic-field sensor. Processing electronics is in communication with each magnetic-field sensor to receive the signals generated by that magnetic-field sensor while the member rotates and to dynamically compute from the signals a measurement associated with a performance of the rotating member.
    • 测量系统包括被配置为将机械能传递到使用点的旋转构件。 构件在其表面上具有一个或多个圆周取向的可磁化材料带。 每个带具有由磁性记录在该带的可磁化材料中的多个跃迁组成的磁图案。 磁场传感器设置在每个可磁化材料带的附近,以便在构件旋转时感测记录在该带中的磁图案。 每个磁场传感器响应由该磁场传感器感测到的磁性图案产生信号。 处理电子设备与每个磁场传感器通信,以在构件旋转时接收由该磁场传感器产生的信号,并且根据信号动态地计算与旋转构件的性能相关联的测量。