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1. 发明专利

JP2009244115A Device and method for correcting position detection error 有权
标题翻译：用于校正位置检测错误的装置和方法
公开(公告)号：JP2009244115A
公开(公告)日：2009-10-22
申请号：JP2008091253
申请日：2008-03-31
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SUGIE HIROSHI , YOSHIDA MASAHIKO , OMURA YOICHI
IPC分类号： G01D5/244
摘要： PROBLEM TO BE SOLVED: To accurately correct an error of a position detection value, even under the action of torque ripples of a motor, without having to use an accurate position detector for comparative calibration.
SOLUTION: A position detection error estimation part 8 calculates the position detection error estimation value θ
e , based on a position detection value θ, when the motor is driven based on an operation condition with at least one of speed, direction and servo gain being changed, and a correction parameter calculation part 9 calculates a correction parameter P, based on the position detection error estimation value θ
e ; a position detection error correction value calculation part 4 calculates a position detection error correction value C(θ), that is a correction function corresponding to the position detection value θ from correction parameters P (A
n , B
n and D); and a position detection error correction part 6 calculates a corrected position detection value θ
c , by determining a difference between the position detection value θ and the position detection error correction value C(θ).
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：即使在马达的扭矩波动的作用下，也可以精确地校正位置检测值的误差，而无需使用精确的位置检测器进行比较校准。解决方案：位置检测误差估计部件8基于位置检测值θ计算位置检测误差估计值θ，当电动机至少基于运转条件被驱动时速度，方向和伺服增益中的一个被改变，校正参数计算部9基于位置检测误差估计值θ计算校正参数P. 位置检测误差校正值计算部分4从校正参数P（A n ，B'）计算作为与位置检测值θ相对应的校正函数的位置检测误差校正值C（θ） SB> n 和D）; 并且位置检测误差校正部分6通过确定位置检测值θ和位置检测误差校正值C（θ）之间的差来计算校正位置检测值θ。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JP2013033058A Encoder 有权
标题翻译：编码器
公开(公告)号：JP2013033058A
公开(公告)日：2013-02-14
申请号：JP2012222116
申请日：2012-10-04
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： OMURA YOICHI , SHAMOTO KOUYU , OKAMURO TAKASHI , HASEGAWA MICHIYASU
IPC分类号： G01D5/244
摘要： PROBLEM TO BE SOLVED: To provide an encoder capable of detecting a failure as accurately as possible without adding a position detection signal.SOLUTION: An encoder comprises: a plurality of systems of position detection signal generating systems (a light source 1, tracks 3a to 3c, light-receiving element units 4a to 4c), for generating electric signals as position detection signals having different cycles, respectively; a first electric angle calculation section 8 and a one rotation position data generating section 9 for functioning as a first calculation section that calculates first position data on the basis of the position detection signals generated by the plurality of position detection signal generating systems; a second electric angle calculation section 11 and a second one rotation position data generation section 12 for functioning as a second calculation section that calculates second position data on the basis of the electric signals generated by the position detection signal generating systems having systems fewer than those of the first calculation section; and a comparison section 10 for functioning as a failure determination section that determines whether the encoder fails or not on the basis of comparison between the first and second position data.
摘要翻译：要解决的问题：提供一种能够在不添加位置检测信号的情况下尽可能精确地检测故障的编码器。解决方案：编码器包括：多个位置检测信号发生系统（光源1，轨道3a至3c，光接收元件单元4a至4c）系统，用于产生电信号作为具有不同的位置检测信号循环; 第一电角度计算部分8和一个旋转位置数据产生部分9，用于作为第一计算部分，其基于由多个位置检测信号产生系统产生的位置检测信号计算第一位置数据; 第二电角度计算部分11和第二旋转位置数据产生部分12，用作第二计算部分，该第二计算部分基于由位置检测信号产生系统产生的电信号计算第二位置数据，该位置检测信号产生系统的系统小于第一个计算部分; 以及用作故障判定部的比较部10，其基于第一位置数据和第二位置数据之间的比较来判定编码器是否失败。版权所有（C）2013，JPO＆INPIT

3. 发明专利

JP2011202986A Optical type rotary encoder 审中-公开
标题翻译：光学类型旋转编码器
公开(公告)号：JP2011202986A
公开(公告)日：2011-10-13
申请号：JP2010068056
申请日：2010-03-24
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KOJIMA SACHIKO , OMURA YOICHI , SATONE TOSHIKAZU , OKAMURO TAKASHI
IPC分类号： G01D5/36
摘要： PROBLEM TO BE SOLVED: To achieve an optical type rotary encoder that has little restriction in dimensions of an applicable oil seal.SOLUTION: The optical type rotary encoder includes a housing 9 which has first and second coaxial bearing holes 9a and 9b in which first and second bearings 6 and 7 are fitted, and which contacts with the outer periphery of the oil seal 11 and holds this, a light-emitting element 4 which is installed in the housing 9, with the optical axis set on the axial direction of the first and second bearing holes 9a and 9b, a shaft 1 which keeps a disk 2 attached to one end part, while the other end part works as a rotation input part, and which is adhered to the first and second bearings 6 and 7 fitted in the first and second bearing holes 9a and 9b, a light-receiving element 5 which is disposed opposite to the light-emitting element 4 with the disk 2 positioned between, a cylindrical collar 10 which is mounted on the other end side of the shaft 1 adjacently to the second bearing 7, and the oil seal 11 which is mounted on the outer periphery of the collar 10.
摘要翻译：要解决的问题：实现对适用油封的尺寸几乎没有限制的光学式旋转编码器。解决方案：光学式旋转编码器包括壳体9，壳体9具有第一和第二同轴轴承孔9a和9b，第二轴承6和7被装配并且与油封11的外周接触并保持其安装在壳体9中的发光元件4，光轴设置在第一轴和第二轴承孔9a和9b，轴1，其保持安装在一个端部上的盘2，而另一个端部用作旋转输入部分，并且粘合到安装在第一和第二轴承孔中的第一和第二轴承6和7上第一和第二轴承孔9a和9b，与光盘2位于其间的发光元件4相对设置的光接收元件5，相对地安装在轴1的另一端侧的圆柱形轴环10 到了第二轴承7和安装在轴环10的外周上的油封11。

4. 发明专利

JP2008215932A Encoder, its manufacturing method, and servomotor 有权
标题翻译：编码器，其制造方法和伺服电机
公开(公告)号：JP2008215932A
公开(公告)日：2008-09-18
申请号：JP2007051439
申请日：2007-03-01
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KOJIMA SACHIKO , SATONE TOSHIKAZU , SAKUMA HIROKAZU , OMURA YOICHI
IPC分类号： G01D5/36
摘要： PROBLEM TO BE SOLVED: To provide an encoder having the small number of components, a short length in the axial direction, and an ultra-high resolution, its manufacturing method, and a servomotor equipped with the encoder.
SOLUTION: This encoder includes a housing having the first and second coaxial bearing holes, an inner flange formed between the first and second bearing holes, and a stand installation part comprising a surface orthogonal to the axial direction of the first and second bearing holes; a preload spring arranged between the inner flange and an outer ring of the first bearing; a light emitting element stand installed on the stand installation part and having an index scale installed on a top part; and a rotating shaft whose one end has a disk holding part on which a pulse disk is mounted, whose other end is used as a rotation input part, and which is fixed to the first and second bearings fitted respectively into the first and second bearing holes, used for preloading the first bearing by pressing the preload spring to the inner flange by the outer ring of the first bearing, and provided with an axial direction gap between the disk holding part and the top part of the light emitting element stand.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种具有少量部件，轴向长度短和超高分辨率的编码器，其制造方法和装备有编码器的伺服电机。解决方案：该编码器包括具有第一和第二同轴轴承孔的壳体，形成在第一和第二轴承孔之间的内凸缘，以及支架安装部分，其包括与第一和第二轴承的轴向正交的表面孔; 布置在所述内凸缘和所述第一轴承的外圈之间的预载弹簧; 发光元件支架安装在支架安装部上并具有安装在顶部的折射率标尺; 以及旋转轴，其一端具有安装有脉冲盘的盘保持部，其另一端用作旋转输入部，并且固定到分别嵌合在第一和第二轴承孔中的第一和第二轴承，用于通过第一轴承的外圈将预紧弹簧压入内凸缘，并且在盘保持部分和发光元件支架的顶部之间设置有轴向间隙，用于预加载第一轴承。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2005164533A Optical type encoder and motor with encoding 有权
标题翻译：光编码器和编码器的电机
公开(公告)号：JP2005164533A
公开(公告)日：2005-06-23
申请号：JP2003407304
申请日：2003-12-05
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： OMURA YOICHI , OKA TORU
IPC分类号： G01D5/347 , G01D5/34
摘要： PROBLEM TO BE SOLVED: To attain high resolution by a formation of narrow pitches in an optical type encoder, maintaining the facility of manufacturing of a scale.
SOLUTION: The optical type encoder is provided with a light emitting part and a light receiving part which are oppositely disposed on the optical axis, and a scale part which moves in a first direction that intersects perpendicularly the optical axis between the light emitting part and the light receiving part, and moreover possesses a translucent pattern arranged alternately by a translucent part and a non-translucent part in the moving direction, so that the light receiving part may receive the light from the light emitting part through the translucent part. In the optical type encoder, the scale part is composed of a first scale part wherein the translucent part and the non-translucent part are arranged with a first translucent pattern in the first direction, and a second scale part wherein the translucent part and the non-translucent part are arranged with a second translucent pattern different from the first translucent pattern in the first direction, so that the first scale part and the second scale part are disposed in parallel.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了通过在光学型编码器中形成窄间距来获得高分辨率，保持标尺的制造设备。解决方案：光学式编码器设置有相对设置在光轴上的发光部分和光接收部分，以及刻度部分，其在与发光部分之间的光轴垂直相交的第一方向上移动部分和光接收部分，并且还具有通过半透明部分和移动方向上的非半透明部分交替布置的半透明图案，使得光接收部分可以通过半透明部分接收来自发光部分的光。在光学型编码器中，刻度部由第一标尺部和第二标尺部构成，第一标尺部分的半透明部分和非透光部分沿第一方向布置有第一半透明图案，第二标尺部分包括半透明部分和非透光部分，半透明部分在第一方向上布置有与第一半透明图案不同的第二透明图案，使得第一刻度部分和第二刻度部分平行设置。版权所有（C）2005，JPO＆NCIPI

6. 发明专利

JP2009053102A Optical rotary encoder 有权
标题翻译：光学旋转编码器
公开(公告)号：JP2009053102A
公开(公告)日：2009-03-12
申请号：JP2007221424
申请日：2007-08-28
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KOJIMA SACHIKO , OMURA YOICHI , TAKAMUNE KOICHI , SATONE TOSHIKAZU
IPC分类号： G01D5/36
摘要： PROBLEM TO BE SOLVED: To provide an optical rotary encoder suppressing deterioration of detection accuracy by reducing a warp amount of a position-detecting pattern part of a pulse disk.
SOLUTION: This optical rotary encoder 100 has: the pulse disk 7 formed with a position-detecting pattern; a rotary shaft 2 rotatably held by a housing 1, sticking the pulse disk 7 to a top part 2t and holding it; an light emitting element 8 irradiating light on the position-detecting pattern of the pulse disk 7; and a light receiving element 11 receiving the light from the light emitting element 8 through the position-detecting pattern of the pulse disk 7. A thickness of a central part of an adhesive layer sticking the pulse disk 7 to the top part 2t of the rotary shaft 2 is thinned as compared to a thickness of the circumference of the central part.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：解决的问题：通过减少脉冲盘的位置检测图案部分的弯曲量来提供抑制检测精度降低的光学旋转编码器。解决方案：该光学旋转编码器100具有：形成有位置检测图案的脉冲盘7; 由壳体1可旋转地保持的旋转轴2，将脉冲盘7粘贴到顶部2t并保持它; 将光照射在脉冲盘7的位置检测图案上的发光元件8; 以及受光元件11，其通过脉冲盘7的位置检测图案从发光元件8接收光。将脉冲盘7粘贴到旋转体的顶部2t上的粘合剂层的中心部分的厚度与中心部的圆周的厚度相比，轴2变薄。版权所有（C）2009，JPO＆INPIT

7. 发明专利

JP2008241243A Optical encoder 审中-公开
标题翻译：光学编码器
公开(公告)号：JP2008241243A
公开(公告)日：2008-10-09
申请号：JP2005192346
申请日：2005-06-30
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： OMURA YOICHI , OKA TORU , NAKAJIMA HAJIME , OKAMURO TAKASHI , SHAMOTO KOUYU
IPC分类号： G01D5/347
CPC分类号： G01D5/347 , G01D5/34715
摘要： PROBLEM TO BE SOLVED: To provide an optical encoder with distorsion prevented from occurring in a signal output from a light-receiving element, even when uneveness is produced in the distribution of illumination from a light source.
SOLUTION: This optical encoder is equipped with the light source 4; a first lattice 1 having opening parts for receiving light from the light source; a second lattice 2, having opening parts arranged on a same circumference for receiving light having intensity distribution formed by the first lattice 1; a third lattice 3, having opening parts arranged on a same circumference for receiving light passing through the second lattice 2; and a light-receiving element 7 for receiving light from the third lattice 3. In the opening parts of the first lattice, the centers of its openings are disposed at the positions of the intersections of concentric circles and line segments of equal angular intervals passing through the centers of the concentric circles, and the shape of each opening is a shape obtained by sinusoidally changing the concentric circles outward and inward symmetrically with the concentric circles used as axes of symmetry.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：即使在来自光源的照明分布中产生不均匀性，提供防止从光接收元件输出的信号中发生变形的光学编码器。
解决方案：该光学编码器配有光源4; 具有用于接收来自光源的光的开口部的第一格子1; 第二格子2，具有布置在同一圆周上的开口部，用于接收由第一格子1形成的强度分布的光; 第三格子3，具有布置在相同圆周上的开口部分，用于接收通过第二格子2的光; 以及用于接收来自第三格子3的光的光接收元件7.在第一格子的开口部分中，其开口的中心设置在穿过相等角度间隔的同心圆和线段的交点的位置同心圆的中心和每个开口的形状是通过以对称轴为对称的同心圆以正交方式将同心圆向外和向内对称地获得的形状。版权所有（C）2009，JPO＆INPIT

8. 发明专利

JP2007033245A Magnetic absolute type encoder 有权
标题翻译： MAGNETIC绝对型编码器
公开(公告)号：JP2007033245A
公开(公告)日：2007-02-08
申请号：JP2005217218
申请日：2005-07-27
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： NISHIZAWA HIROSHI , OMURA YOICHI , OKA TORU , SHAMOTO KOUYU
IPC分类号： G01D5/249
摘要： PROBLEM TO BE SOLVED: To provide a magnetic absolute type encoder capable of detecting highly accurately an absolute position by performing stably and accurately coding of an absolute-value acquiring code.
SOLUTION: This magnetic absolute type encoder for generating the absolute-value acquiring code by combination of a polarized part and a non-polarized part of a magnetic scale, and outputting absolute data has a characteristic wherein the magnetization direction of each polarized part is set to be the same magnetization direction when each polarized part continues.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够通过对绝对值获取代码进行稳定且准确的编码来高精度地检测绝对位置的磁绝对型编码器。解决方案：用于通过磁极化的极化部分和非极化部分的组合产生绝对值获取代码并输出绝对数据的该绝对型编码器具有这样的特征，其中每个极化部分的磁化方向当每个极化部分继续时，被设定为相同的磁化方向。版权所有（C）2007，JPO＆INPIT

9. 发明专利

JP2005098931A Optical encoder and position-detecting method therefor 有权
标题翻译：光学编码器及其位置检测方法
公开(公告)号：JP2005098931A
公开(公告)日：2005-04-14
申请号：JP2003335406
申请日：2003-09-26
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： SAKAMOTO MASAHIKO , KITAGAKI SHUNICHI , NAKAJIMA HAJIME , YONEZAWA HIROTOSHI , HARA SHOICHIRO , OKA TORU , OMURA YOICHI
IPC分类号： G01D5/347 , G01D5/34
摘要： PROBLEM TO BE SOLVED: To provide an optical encoder, outputting an output signal which is free of the influence changes in the temperature.
SOLUTION: A position-detecting method in an optical encoder includes a light-emitting section; a signal track where a modulating pattern for reflection or passage is formed by the presence of a V-style section having a shape reflecting incident light; a light-shielding track where a V-style pattern equal to a detecting section is formed; a resin optical scale providing a permeation region for permeating the incident light; a light-receiving section detecting transmitted light from the signal track, light-shielding track, and permeation region; and a signal-processing unit performing the position detection of a scale, based on each detection signal on the light receiving section. Therein, the quantity of light from the permeation region and quantity of light from the light-shielding track are detected; the quantity of light from the permeation region and the quantity of light from the light-shielding track are compared; and then the changes in the temperature for the ratio of the light entering the V-style section and passing through it is determined. Then, quantity of light from the signal track is detected, and the position of the optical scale is detected by compensating the quantity of the light from the signal track, based on the ratio of the light entering to the light passing through the V-style section passes.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供光学编码器，输出没有影响温度变化的输出信号。解决方案：光学编码器中的位置检测方法包括发光部分; 通过存在具有反射入射光的形状的V型部分形成用于反射或通过的调制图案的信号轨道; 形成与检测部相等的V型图案的遮光轨迹; 提供用于透过入射光的渗透区域的树脂光学秤; 检测来自信号轨道，遮光轨道和渗透区域的透射光的光接收部分; 以及基于光接收部分上的每个检测信号执行刻度位置检测的信号处理单元。其中，检测来自透光区域的光量和来自遮光轨迹的光量; 比较来自透光区域的光量和来自遮光轨迹的光量; 然后确定进入V型部分并通过其的光的比率的温度变化。然后，检测来自信号轨道的光量，并且通过基于进入到通过V型的光的光的比例来补偿来自信号轨道的光量来检测光标的位置部分通过。版权所有（C）2005，JPO＆NCIPI

10. 发明专利

JP2005077188A Optical encoder 有权
标题翻译：光学编码器
公开(公告)号：JP2005077188A
公开(公告)日：2005-03-24
申请号：JP2003306346
申请日：2003-08-29
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： KITAGAKI SHUNICHI , SAKAMOTO MASAHIKO , NAKAJIMA HAJIME , YONEZAWA HIROTOSHI , HARA SHOICHIRO , OKA TORU , OMURA YOICHI
IPC分类号： G01D5/347 , G01D5/34
摘要： PROBLEM TO BE SOLVED: To provide an optical encoder with high resolution and low power consumption. SOLUTION: The optical encoder comprises a light emission part which emits light, a lens which collimates the light from the light emission part, a scale on which a V-shaped projection or a pattern formed by slits is provided on the surface opposite to the lens, a light receiving part which receives the light collimated by the lens and passing through the scale, and a reflection means which is provided at the light emission part side against the lens and reflects the light, which is reflected toward the lens from the scale and travels near the light emission part, toward the lens. COPYRIGHT: (C)2005,JPO&NCIPI

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