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1. 发明申请

US20040095583A1 Displacement pickup 有权
标题翻译：位移拾取
公开(公告)号：US20040095583A1
公开(公告)日：2004-05-20
申请号：US10705429
申请日：2003-11-10
申请人： Sony Precision Technology Inc.
发明人： Hideaki Tamiya , Kayoko Taniguchi , Eiko Kanbara
IPC分类号： G01B009/02
CPC分类号： G01D5/366 , G01D5/34792
摘要： A displacement pickup is provided which comprising a scale (12) having defined thereon a first area (12a) where positional information is recorded with a predetermined pitch and a second area (12b) where positional information is recorded with a pitch different from that in the first area (12a), a first reader (10) which reads the positional information recorded in the first area (12a), a first phase detector (14) which detects a first phase on the basis of the positional information read by the first reader (10), a second reader (11) which reads the positional information recorded in the second area (12b), a second phase detector (15) which detects a second phase on the basis of the positional information read by the second reader (11), a phase comparator (16) which makes a comparison between the first and second phases, and an origin signal selector (18) which produce a plurality of signals according to the result of comparison and selects an arbitrary one of the plurality of signals on the basis of the positional information read by the first reader (10).
摘要翻译：提供一种位移拾取器，其包括其上限定有以预定间距记录位置信息的第一区域（12a）的刻度（12），以及第二区域（12b），其中位置信息以不同于第一区域（12a），读取记录在第一区域（12a）中的位置信息的第一读取器（10），第一相位检测器（14），其基于由第一读取器读取的位置信息检测第一相位（10），读取记录在第二区域（12b）中的位置信息的第二读取器（11），第二相位检测器（15），其基于由第二读取器（11）读取的位置信息来检测第二相位），比较第一和第二相位的相位比较器（16）和根据比较结果产生多个信号的原点信号选择器（18），并选择多个信号中的任意一个基于由第一读取器（10）读取的位置信息。

2. 发明申请

US20040080755A1 Displacement pickup 有权
标题翻译：位移拾取
公开(公告)号：US20040080755A1
公开(公告)日：2004-04-29
申请号：US10692376
申请日：2003-10-22
申请人： Sony Precision Technology
发明人： Hideaki Tamiya , Kayoko Taniguchi , Akihiro Kuroda
IPC分类号： G01B011/02
CPC分类号： G01D5/34707
摘要： A displacement pickup is provided which includes a displaceable scale (12) having defined therein a first area (12a) where positional information is recorded with a predetermined pitch and a second area (12b) where positional information is recorded with a predetermined pitch different from that in the first area (12a), a first reading system (10) to read the positional information recorded in the first area (12a), a first phase detector (14) to detect a first phase on the basis of the positional information read by the first reading system (10), a second reading system (11) to read the positional information recorded in the second area (12b), a second phase detector (15) to detect a second phase on the basis of the positional information read by the second reading system (11), a phase comparator (16) to make a comparison between the first and second phases, and an origin signal generator (17) to generate an origin signal according to the result of comparison from the phase comparator (16).
摘要翻译：提供了一种位移拾取器，其包括可移位标尺（12），其中限定了第一区域（12a），其中以预定间距记录位置信息;以及第二区域（12b），其中以与在第一区域（12a）中，读取记录在第一区域（12a）中的位置信息的第一读取系统（10），基于由第一区域（12a）读取的位置信息来检测第一阶段的第一相位检测器第一读取系统（10），读取记录在第二区域（12b）中的位置信息的第二读取系统（11），基于由第二读取系统读取的位置信息来检测第二阶段的第二相位检测器（15）第二读取系统（11），用于进行第一和第二相位之间的比较的相位比较器（16）以及根据比较结果从相位比较器产生原点信号的原点信号发生器（17）（16）。

3. 发明申请

US20040065486A1 Scale device 有权
标题翻译：缩放设备
公开(公告)号：US20040065486A1
公开(公告)日：2004-04-08
申请号：US10674634
申请日：2003-09-29
申请人： Sony Precision Technology Inc.
发明人： Gunichi Nakamura , Mitsuru Ohno
IPC分类号： G01G003/14
CPC分类号： G01D11/24
摘要： In a scale device including a case member (8) having a guide opening (9) formed therein, seal lip members (12A, 12B), a carrier unit (13) having seal lip pressing means (22, 23) formed thereon, and a coupling member (16) which slides inside and relative to the guide opening (9), the seal lip members (12A, 12B) are pressed at end portions (12e, 12f) thereof by the seal lip pressing means (22, 23) in the vicinity of opposite end portions (16b, 16c) of the coupling member (16) to prevent the seal lip members (12A, 12B) from being spread. Thus, any gaps can be prevented from taking place between the seal lip members (12A, 12B) and coupling member (16) in the vicinity of the opposite end portions (12e, 12f) of the latter. Therefore, dust or the like can be prevented from entering the case member (8).
摘要翻译：在包括其中形成有导向开口（9）的壳体构件（8）的刻度装置中，密封唇构件（12A，12B），其上形成有密封唇加压装置（22,23）的载体单元（13）和密封唇部件（12A，12B）通过密封唇按压装置（22,23）在其端部（12e，12f）处被按压，所述联接构件（16）在内部并相对于引导开口（9）滑动，在联接构件（16）的相对端部（16b，16c）附近，以防止密封唇构件（12A，12B）的扩展。因此，可以防止在密封唇部件（12A，12B）和联接部件（16）之间的相对端部（12e，12f）附近发生任何间隙。因此，可以防止灰尘等进入壳体（8）。

4. 发明申请

US20030006765A1 Magnetic flux measuring device 失效
标题翻译：磁通测量装置
公开(公告)号：US20030006765A1
公开(公告)日：2003-01-09
申请号：US10183743
申请日：2002-06-25
申请人： Sony Precision Technology Inc.
发明人： Yasuo Nekado , Masaaki Kusumi , Ken Onoe
IPC分类号： G01R033/02
CPC分类号： G01D5/2033 , G01R33/02
摘要： A sensor coil is provided on a core which forms a magnetic circuit for driving a linear motor, and the core is excited by electrifying the sensor coil at a high frequency. The high-frequency excitation is carried out in such a manner that the sensor coil is not magnetically saturated, and an eddy current is generated in the core. The impedance of the sensor coil is detected in this state and the quantity of a magnetic flux generated in the core constituting the magnetic circuit is detected on the basis of the impedance. Thus, the influence on the magnetic circuit itself is reduced and higher accuracy, miniaturization and lower power consumption are realized.
摘要翻译：传感器线圈设置在芯部上，形成用于驱动线性电动机的磁路，并且通过使传感器线圈以高频率通电来激励磁芯。高频激励以传感器线圈不是磁饱和的方式进行，并且在芯中产生涡电流。在该状态下检测传感器线圈的阻抗，并且基于阻抗来检测在构成磁路的磁芯中产生的磁通量。因此，降低对磁路本身的影响，实现更高的精度，小型化和低功耗。

5. 发明申请

US20040157067A1 Magnetic sensor and position detector 有权
标题翻译：磁传感器和位置检测器
公开(公告)号：US20040157067A1
公开(公告)日：2004-08-12
申请号：US10689754
申请日：2003-10-20
申请人： Sony Precision Technology Inc.
发明人： Masaaki Kusumi , Mitsuru Ohno , Michio Okano , Hideki Nakamori , Touru Sumiya , Akitaka Tsunogae , Tomoyuki Nakada , Teruyuki Miura , Yoshihiko Ohkawara
IPC分类号： B32B027/00
CPC分类号： G01R33/09 , G01R33/02 , Y10T428/1143 , Y10T428/1164 , Y10T428/1171 , Y10T428/1193 , Y10T428/31721
摘要： In a magnetic sensor (1) including a substrate (10) having a magnetism-sensitive element (11) formed thereon, a hard membrane (14) is formed on the outermost surface, an organic film (13) to relieve the stress caused by the hard membrane (14) is formed under the hard membrane (14), and an inorganic film (12) to relieve the stress caused by the organic film (13) is formed between the organic film (13) and magnetism-sensitive element (11). Also, an intermediate film formed from an element having a large force of bonding to carbon may be formed between the organic film (13) and hard membrane (14). Thus, the magnetic sensor (MR sensor, for example) can be protected against an external shock.
摘要翻译：在包括其上形成有磁敏元件（11）的基板（10）的磁传感器（1）中，在最外表面上形成有硬膜（14），以有效的薄膜（13）来减轻由在所述硬膜（14）的下方形成有所述硬膜（14），在所述有机膜（13）和所述感磁元件（13）之间形成有机膜（13）产生的应力的无机膜（12） 11）。此外，可以在有机膜（13）和硬膜（14）之间形成由具有大的结合力的元素形成的中间膜。因此，可以保护磁传感器（例如MR传感器）免受外部冲击。

6. 发明申请

US20040154181A1 Scale device 有权
标题翻译：缩放设备
公开(公告)号：US20040154181A1
公开(公告)日：2004-08-12
申请号：US10676791
申请日：2003-09-30
申请人： Sony Precision Technology Inc.
发明人： Gunichi Nakamura , Mitsuru Ohno
IPC分类号： G01D021/00
CPC分类号： G01D5/34707
摘要： In a scale device including a scale unit (4) and detector (5), the scale unit (4) includes a scale member (6) formed from a long material and having at least a pair of fixing holes (12) formed therein across a position signal carrying area (11) defined thereon and which carries positions signals, and a case member (7) housing the scale member (6) therein and having formed therein a pair of fixing holes (15) through which there is penetrated a fastening member (13) to be screwed into a mounting hole (10) formed in a stationary part (2) of a machine to which the scale device is to be installed. The detector (5) is fixed to a moving part (3) of the machine, which moves relative to the stationary part (2), and includes a sensor (29) which moves oppositely to the position signal carrying area (11) on the scale member (6). The scale unit (4) is fixed to the stationary part (2) with the scale member (6) and case member (7) being fastened together by the fastening member (13). Thus, the scale member (6) different in linear expansion coefficient from the stationary part (2) can be installed to the latter with a high precision, and the scale device can make a measurement with a high accuracy, independently of environmental conditions.
摘要翻译：在包括刻度单元（4）和检测器（5）的刻度装置中，刻度单元（4）包括由长材料形成的刻度部件（6），并且在其中形成有至少一对固定孔定位在其上并位于其上的位置信号承载区域（11），并且承载位置信号;以及壳体构件（7），其中容纳刻度件（6），并且在其中形成有一对固定孔（15），穿过该固定孔构件（13）被拧入形成在要安装标尺装置的机器的静止部分（2）中的安装孔（10）中。检测器（5）固定在机器的移动部分（3）上，该移动部分相对于静止部分（2）移动，并且包括一个与位置信号承载区域（11）相对移动的传感器（29）（6）。标尺单元（4）通过标尺构件（6）固定到固定部分（2），并且壳体构件（7）通过紧固构件（13）紧固在一起。因此，与静止部分（2）的线性膨胀系数不同的标尺（6）可以高精度地安装在后者上，并且刻度装置可以独立于环境条件进行高精度的测量。

7. 发明申请

US20030202189A1 Light-receiving/emitting composite unit, method for manufacturing the same, and displacement detection device 有权
标题翻译：光接收/发射复合单元，其制造方法和位移检测装置
公开(公告)号：US20030202189A1
公开(公告)日：2003-10-30
申请号：US10414860
申请日：2003-04-15
申请人： Sony Precision Technology Inc.
发明人： Hideaki Tamiya , Kayoko Taniguchi , Akihiro Kuroda , Hidehiro Kume
IPC分类号： G01B009/02
CPC分类号： G01D5/38
摘要： A displacement detection device having excellent stability with the lapse of time and suitable for reduction in size and weight includes: a light source for emitting light; polarizing light splitting unit for splitting the light emitted from the light source into two light beams having difference polarized components, radiating the two light beams to an external optical system, and combining the two light beams reflected by the external optical system to generate combined light; a phase plate provided between the light source and the polarizing light splitting unit and adapted for changing the polarization state of the light emitted from the light source and leading the light to the polarizing light splitting unit; light splitting films for splitting the combined light generated by the polarizing light splitting unit into plural light beams; polarizing units for transmitting only a predetermined polarized components of the split combined light beams; and light-receiving elements for photoelectrically converting coherent light beams transmitted through the polarizing units and thus generating an interference signal.
摘要翻译：具有优异的时间稳定性和适合于减小尺寸和重量的位移检测装置包括：用于发光的光源; 偏振光分离单元，用于将从光源发射的光分成具有差分偏振分量的两个光束，将两个光束照射到外部光学系统，并且组合由外部光学系统反射的两个光束以产生组合光; 设置在所述光源和所述偏振光分离单元之间的相位板，用于改变从所述光源发射的光的偏振状态并将光引导到所述偏振光分离单元; 用于将由偏振光分离单元产生的组合光分离成多个光束的分光膜; 用于仅透射分离的组合光束的预定偏振分量的偏振单元; 以及用于光电转换透射通过偏振单元的相干光束并由此产生干涉信号的光接收元件。

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