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公开(公告)号：US07972715B2
公开(公告)日：2011-07-05
申请号：US12367632
申请日：2009-02-09
申请人： Norihisa Shibayama , Yasuhiro Naka , Nobuaki Orita
发明人： Norihisa Shibayama , Yasuhiro Naka , Nobuaki Orita
CPC分类号： G11B5/7315 , G11B5/8404
摘要： A plurality of recording magnetization portions is arranged in a concentric manner around a center of a glass substrate. A plurality of non-magnetization portion having a thermal conductivity lower than that of the recording magnetization portions is formed each between adjacent recording magnetization portions along a circumferential direction on a main surface of the glass substrate. A mean squared roughness of a surface of an area where each of the non-magnetization portions is formed is equal to or smaller than 1 nanometer.
摘要翻译： 多个记录磁化部分围绕玻璃基板的中心以同心的方式布置。 在玻璃基板的主表面上沿着圆周方向在相邻的记录磁化部分之间形成导热率低于记录磁化部分的多个非磁化部分。 其中形成每个非磁化部分的区域的表面的均方粗糙度等于或小于1纳米。
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公开(公告)号：US20060022125A1
公开(公告)日：2006-02-02
申请号：US11188602
申请日：2005-07-25
IPC分类号： G01D5/34
CPC分类号： G01D3/036 , G01D5/2013
摘要： A displacement sensor comprising: a detecting portion including a coil arranged in such manner that a relative position to a magnetic response substance varies in correspondence to a displacement of an object to be measured; an oscillating circuit to supply an alternating-current signal with a prescribed frequency to the detecting portion; an externally attached circuit connected to the detecting portion; and a displacement detecting means to detect the displacement of the object to be measured based on an amount of phase variation of an impedance in the detecting portion and the externally attached circuit, wherein parameters of the externally attached circuit are set in such manner that the amount of the phase variation by the displacement becomes larger than the amount of the phase variation by temperature variation.
摘要翻译： 1.一种位移传感器，包括：检测部，其包括线圈，所述线圈以使得与磁性响应物质的相对位置对应于待测量物体的位移而变化的方式布置; 振荡电路，用于向所述检测部分提供具有规定频率的交流信号; 连接到检测部分的外部附接电路; 以及位移检测装置，用于基于检测部分和外部附接电路中的阻抗的相位变化量来检测被测量物体的位移，其中外部附加电路的参数被设定为使得量 通过位移的相位变化大于通过温度变化的相位变化量。
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公开(公告)号：US20090239101A1
公开(公告)日：2009-09-24
申请号：US12367632
申请日：2009-02-09
申请人： Norihisa SHIBAYAMA , Yasuhiro Naka , Nobuaki Orita
发明人： Norihisa SHIBAYAMA , Yasuhiro Naka , Nobuaki Orita
IPC分类号： G11B5/70
CPC分类号： G11B5/7315 , G11B5/8404
摘要： A plurality of recording magnetization portions is arranged in a concentric manner around a center of a glass substrate. A plurality of non-magnetization portion having a thermal conductivity lower than that of the recording magnetization portions is formed each between adjacent recording magnetization portions along a circumferential direction on a main surface of the glass substrate. A mean squared roughness of a surface of an area where each of the non-magnetization portions is formed is equal to or smaller than 1 nanometer.
摘要翻译： 多个记录磁化部分围绕玻璃基板的中心以同心的方式布置。 在玻璃基板的主表面上沿着圆周方向在相邻的记录磁化部分之间形成导热率低于记录磁化部分的多个非磁化部分。 其中形成每个非磁化部分的区域的表面的均方粗糙度等于或小于1纳米。
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公开(公告)号：US07304292B2
公开(公告)日：2007-12-04
申请号：US11188602
申请日：2005-07-25
IPC分类号： H01J40/14
CPC分类号： G01D3/036 , G01D5/2013
摘要： A displacement sensor comprising: a detecting portion including a coil arranged in such manner that a relative position to a magnetic response substance varies in correspondence to a displacement of an object to be measured; an oscillating circuit to supply an alternating-current signal with a prescribed frequency to the detecting portion; an externally attached circuit connected to the detecting portion; and a displacement detecting means to detect the displacement of the object to be measured based on an amount of phase variation of an impedance in the detecting portion and the externally attached circuit, wherein parameters of the externally attached circuit are set in such manner that the amount of the phase variation by the displacement becomes larger than the amount of the phase variation by temperature variation.
摘要翻译： 1.一种位移传感器，包括：检测部，其包括线圈，所述线圈以使得与磁性响应物质的相对位置对应于待测量物体的位移而变化的方式布置; 振荡电路，用于向所述检测部分提供具有规定频率的交流信号; 连接到检测部分的外部附接电路; 以及位移检测装置，用于基于检测部分和外部附接电路中的阻抗的相位变化量来检测被测量物体的位移，其中外部附加电路的参数被设定为使得量 通过位移的相位变化大于通过温度变化的相位变化量。
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