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11.发明授权
公开(公告)号：EP0821219B1
公开(公告)日：2004-02-25
申请号：EP97112739.4
申请日：1997-07-24
IPC分类号： G01D5/244
CPC分类号： G01D5/24404
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公开(公告)号：EP0577088B1
公开(公告)日：1998-09-02
申请号：EP93110388.1
申请日：1993-06-29
CPC分类号： G01D5/34715 , G01D5/38
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14.发明公开
公开(公告)号：EP0361457A3
公开(公告)日：1990-05-30
申请号：EP89117894.9
申请日：1989-09-27
IPC分类号： G01D5/36
CPC分类号： G01D5/36
摘要： In the reference-position detection method and apparatus for detecting a reference position of a scale, first and second patterns are disposed on the scale so that respective detection timings shift inversely to each other in response to a deviation in attitude of the scale. The first and second patterns are detected with timings different from each other by corresponding first and second sensors, and the reference position of the scale is determined according to outputs of respective sensors. Hence, even if the attitude of the scale changes from a predetermined attitude due to an inclination of the scale or a deviation in position of the scale, it is possible to exactly detect the reference position of the scale. Accordingly, it becomes also possible to increase the performance of a displacement measuring apparatus.
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公开(公告)号：EP0577088A3
公开(公告)日：1994-03-23
申请号：EP93110388.1
申请日：1993-06-29
CPC分类号： G01D5/34715 , G01D5/38
摘要： A displacement information detection apparatus used in the field of machine tools, measuring apparatus, and the like in order to detect linear shifting conditions and rotary shifting conditions of an object is disclosed. The apparatus can be miniaturized and its construction saves labour. Further, a detection device suitable for the apparatus and a drive control apparatus using this displacement information detection apparatus are disclosed.
摘要翻译： 公开了一种用于在机床，测量装置等领域中使用的位移信息检测装置，以检测物体的线性换档条件和旋转换档条件。 该装置可以小型化，其结构可以节省劳力。 此外，公开了适用于该装置的检测装置和使用该位移信息检测装置的驱动控制装置。
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16.发明公开
公开(公告)号：EP0577088A2
公开(公告)日：1994-01-05
申请号：EP93110388.1
申请日：1993-06-29
CPC分类号： G01D5/34715 , G01D5/38
摘要： A displacement information detection apparatus used in the field of machine tools, measuring apparatus, and the like in order to detect linear shifting conditions and rotary shifting conditions of an object is disclosed. The apparatus can be miniaturized and its construction saves labour. Further, a detection device suitable for the apparatus and a drive control apparatus using this displacement information detection apparatus are disclosed.
摘要翻译： 公开了一种用于检测物体的线性移动条件和旋转移动条件的机床，测量装置等领域中的位移信息检测装置。 该设备可以小型化，其索具节省人力。 此外，公开了适用于该装置的检测装置和使用该位移信息检测装置的驱动控制装置。
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公开(公告)号：EP0420287A3
公开(公告)日：1993-04-14
申请号：EP90118745.0
申请日：1990-09-28
发明人： Ishii, Satoshi
IPC分类号： G01D5/245
CPC分类号： G01D5/24404
摘要： Disclosed is a pulse counting circuit for counting pulse signals comprising a first pulse signal generating means for generating a first pulse signal corresponding to an input signal, a counting means for counting at least either of said first pulse signal and a second pulse signal which differ from said first pulse signal corresponding to said input signal, said first pulse signal possessing a pitch set smaller than that of said second pulse signal, and a control means for selectively controlling the operation of said count means for counting said first and second pulse signal.
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18.发明公开Pulse counter circuit and displacement measuring device 失效Pulszählerund Verschiebungsmessvorrichtung。
公开(公告)号：EP0420287A2
公开(公告)日：1991-04-03
申请号：EP90118745.0
申请日：1990-09-28
发明人： Ishii, Satoshi
IPC分类号： G01D5/245
CPC分类号： G01D5/24404
摘要： Disclosed is a pulse counting circuit for counting pulse signals comprising a first pulse signal generating means for generating a first pulse signal corresponding to an input signal, a counting means for counting at least either of said first pulse signal and a second pulse signal which differ from said first pulse signal corresponding to said input signal, said first pulse signal possessing a pitch set smaller than that of said second pulse signal, and a control means for selectively controlling the operation of said count means for counting said first and second pulse signal.
摘要翻译： 公开了一种用于对脉冲信号进行计数的脉冲计数电路，包括：第一脉冲信号发生装置，用于产生对应于输入信号的第一脉冲信号;计数装置，用于对所述第一脉冲信号和第二脉冲信号中的至少一个进行计数; 所述第一脉冲信号对应于所述输入信号，所述第一脉冲信号具有小于所述第二脉冲信号的音调设置的控制装置，以及用于选择性地控制所述计数装置的操作以对所述第一和第二脉冲信号进行计数的控制装置。
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公开(公告)号：EP0390092A3
公开(公告)日：1991-03-06
申请号：EP90105852.9
申请日：1990-03-27
IPC分类号： G01D5/38
CPC分类号： G01D5/38
摘要： An encoder of this invention radiates a light beam (20) onto an optical scale, in which a reflection film is formed on a surface of a relief type diffraction grating (3) formed on one surface of a light-transmission substrate (1), from a surface opposite to the formation surface of the diffraction grating (3), and detects a change in intensity of interference light caused by diffracted light (21, 22) produced by the diffraction grating, thereby measuring a displacement of the optical scale.
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