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公开(公告)号：US08526013B2
公开(公告)日：2013-09-03
申请号：US12934456
申请日：2009-03-16
IPC分类号： G01B11/14
CPC分类号： G01B7/30 , G01D5/24461 , G01D5/2452
摘要： A batteryless absolute encoder determines the accuracy of absolute position information to be output when electric power is turned on and outputs an alarm signal in the case of abnormality. The batteryless absolute encoder includes an absolute position computing section, an absolute position storing section, and a determining section. The absolute position computing section computes the absolute position of a spindle to be detected, including the number of revolutions of the spindle, based upon detection signals output from four reluctance resolvers. The absolute position storing section stores the absolute position output from the absolute position computing section when electric power is turned off. The determining section compares an absolute position output from the absolute position computing section when electric power is turned on and the stored absolute position and outputs an alarm signal if a difference between the two absolute positions is larger than a predetermined value.
摘要翻译： 无电池绝对编码器确定在接通电源时要输出的绝对位置信息的精度，并在异常情况下输出报警信号。 无电池绝对编码器包括绝对位置计算部分，绝对位置存储部分和确定部分。 绝对位置计算部根据从四个磁阻分解器输出的检测信号，计算出主轴的绝对位置，包括主轴的转数。 绝对位置存储部存储当电力关闭时绝对位置运算部输出的绝对位置。 确定部分比较绝对位置计算部分的电力接通时的绝对位置输出和所存储的绝对位置，并且如果两个绝对位置之间的差异大于预定值，则输出报警信号。
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公开(公告)号：US20110115481A1
公开(公告)日：2011-05-19
申请号：US12948158
申请日：2010-11-17
申请人： Shigeharu Katou , Kazuhiro Makiuchi , Shoji Ito , Tooru Miyajima , Tomohito Yamazaki , Toshiaki Ayuzawa , Masato Matsuda
发明人： Shigeharu Katou , Kazuhiro Makiuchi , Shoji Ito , Tooru Miyajima , Tomohito Yamazaki , Toshiaki Ayuzawa , Masato Matsuda
IPC分类号： G01B7/30
CPC分类号： G01D5/04 , G01D5/2013
摘要： A magnetic absolute encoder with enhanced resolution is provided. A first cycle determining section 27 utilizes data stored in a fourth angle data storing section 23 to determine in which cycle of m cycles of the fourth angle data, fifth angle data, which has been newly computed in response to rotation of a rotary shaft 1, occurs. A second cycle determining section 29 determines in which cycle of n cycles of first angle data that occur in first determined cycle, the newly computed fifth angle data occurs. A third cycle determining section 31 determines in which cycle of N1 cycles of the first angle data, the current first angle data occurs, based on the first determined cycle and second determined cycle. An absolute position determining section 33 determines the absolute position based on third determined cycle and the digital value of the current first angle data.
摘要翻译： 提供了具有更高分辨率的磁性绝对编码器。 第一周期确定部分27利用存储在第四角度数据存储部分23中的数据来确定响应于旋转轴1的旋转而新计算的第四角度数据的第五角度数据的m个循环的周期， 发生。 第二周期确定部分29确定在第一确定周期中出现的第一角度数据的n个周期的哪个周期，发生新计算的第五角度数据。 第三周期确定部分31基于第一确定周期和第二确定周期来确定出现第一角度数据的N1周期的哪个周期，即当前第一角度数据。 绝对位置确定部分33基于第三确定周期和当前第一角度数据的数字值来确定绝对位置。
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公开(公告)号：US20110026040A1
公开(公告)日：2011-02-03
申请号：US12934456
申请日：2009-03-16
CPC分类号： G01B7/30 , G01D5/24461 , G01D5/2452
摘要： A batteryless absolute encoder determines the accuracy of absolute position information to be output when electric power is turned on and outputs an alarm signal in the case of abnormality. The batteryless absolute encoder includes an absolute position computing section, an absolute position storing section, and a determining section. The absolute position computing section computes the absolute position of a spindle to be detected, including the number of revolutions of the spindle, on the basis of detection signals output from four reluctance resolvers. The absolute position storing section stores the absolute position output from the absolute position computing section when electric power is turned off. The determining section compares an absolute position output from the absolute position computing section when electric power is turned on and the stored absolute position and outputs an alarm signal if a difference between the two absolute positions is larger than a predetermined value.
摘要翻译： 无电池绝对编码器确定在接通电源时要输出的绝对位置信息的精度，并在异常情况下输出报警信号。 无电池绝对编码器包括绝对位置计算部分，绝对位置存储部分和确定部分。 绝对位置计算部根据从四个磁阻分解器输出的检测信号，计算出主轴的绝对位置，包括主轴的转数。 绝对位置存储部存储当电力关闭时绝对位置运算部输出的绝对位置。 确定部分比较绝对位置计算部分的电力接通时的绝对位置输出和所存储的绝对位置，并且如果两个绝对位置之间的差异大于预定值，则输出报警信号。
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公开(公告)号：US08358124B2
公开(公告)日：2013-01-22
申请号：US12948158
申请日：2010-11-17
申请人： Shigeharu Katou , Kazuhiro Makiuchi , Shoji Ito , Tooru Miyajima , Tomohito Yamazaki , Toshiaki Ayuzawa , Masato Matsuda
发明人： Shigeharu Katou , Kazuhiro Makiuchi , Shoji Ito , Tooru Miyajima , Tomohito Yamazaki , Toshiaki Ayuzawa , Masato Matsuda
IPC分类号： G01B7/30
CPC分类号： G01D5/04 , G01D5/2013
摘要： A magnetic absolute encoder with enhanced resolution is provided. A first cycle determining section 27 utilizes data stored in a fourth angle data storing section 23 to determine in which cycle of m cycles of the fourth angle data, fifth angle data, which has been newly computed in response to rotation of a rotary shaft 1, occurs. A second cycle determining section 29 determines in which cycle of n cycles of first angle data that occur in first determined cycle, the newly computed fifth angle data occurs. A third cycle determining section 31 determines in which cycle of N1 cycles of the first angle data, the current first angle data occurs, based on the first determined cycle and second determined cycle. An absolute position determining section 33 determines the absolute position based on third determined cycle and the digital value of the current first angle data.
摘要翻译： 提供了具有更高分辨率的磁性绝对编码器。 第一周期确定部分27利用存储在第四角度数据存储部分23中的数据来确定响应于旋转轴1的旋转而新计算的第四角度数据的第五角度数据的m个循环的周期， 发生。 第二周期确定部分29确定在第一确定周期中出现的第一角度数据的n个周期的哪个周期，发生新计算的第五角度数据。 第三周期确定部分31基于第一确定周期和第二确定周期来确定出现第一角度数据的N1周期的哪个周期，即当前第一角度数据。 绝对位置确定部分33基于第三确定周期和当前第一角度数据的数字值来确定绝对位置。
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