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公开(公告)号:US07449677B2
公开(公告)日:2008-11-11
申请号:US11757826
申请日:2007-06-04
申请人: Kean Foong Ng , Sze Kuang Lee , Hock Aun Tan , Weng Fei Wong , Wee Jin Yeap , Chee Foo Lum , Kok Hing Fo , Toshiya Hataguchi , Randeep Singh A/L Amarjit
发明人: Kean Foong Ng , Sze Kuang Lee , Hock Aun Tan , Weng Fei Wong , Wee Jin Yeap , Chee Foo Lum , Kok Hing Fo , Toshiya Hataguchi , Randeep Singh A/L Amarjit
IPC分类号: G01D5/34
CPC分类号: G01D5/34746 , G01D5/347 , G01D5/34707
摘要: An optical encoder includes a code strip having a first side, a second side, a first track comprising indicia thereon, and a second track comprising indicia thereon. The code strip is moveable along a displacement path with respect to the optical encoder. A light source positioned on the first side of the code strip directs light toward the code strip. A first detector element is positioned on the second side of the code strip and is generally aligned with the first track of the code strip. A second detector element is positioned on the second side of the code strip and is generally aligned with the second track of the code strip. The second detector element is also positioned so that the second detector element is located a spaced distance along the displacement path from the first detector element.
摘要翻译: 光学编码器包括具有第一侧,第二侧,其上包括标记的第一轨道和其上包括标记的第二轨道的码带。 编码条可以沿相对于光学编码器的位移路径移动。 位于代码带的第一侧上的光源将光朝着码条引导。 第一检测器元件位于代码条的第二侧上,并且通常与代码条的第一轨迹对齐。 第二检测器元件位于代码条的第二侧上,并且通常与代码条的第二轨迹对齐。 第二检测器元件也被定位成使得第二检测器元件沿着与第一检测器元件的位移路径间隔开距离。
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公开(公告)号:US20050116153A1
公开(公告)日:2005-06-02
申请号:US10725696
申请日:2003-12-01
申请人: Toshiya Hataguchi , Yee Chin , Kok Fo , Srinivasan Lakshmanan , Lai Chua
发明人: Toshiya Hataguchi , Yee Chin , Kok Fo , Srinivasan Lakshmanan , Lai Chua
CPC分类号: G01D5/3473 , G01D5/34707
摘要: An encoder for measuring the position of a rotating shaft is disclosed. The encoder includes a drum having an encoding track thereon and a detector module having a light source and a photodetector. The drum includes a cylindrical surface characterized by an axis, the drum having a surface with a normal perpendicular to the axis. The encoding track includes a plurality of alternating reflective and non-reflective stripes arranged on the cylindrical surface. The first light source illuminates the stripes at an opaque angle relative to the normal. The first photodetector is positioned to receive light from the light source that is reflected from the reflective stripes when the drum moves relative to the photodetector. In one embodiment, the drum rotates about the axis when the shaft rotates. The encoding track can be either on the inside or outside of the drum.
摘要翻译: 公开了一种用于测量旋转轴的位置的编码器。 编码器包括其上具有编码轨道的滚筒和具有光源和光电检测器的检测器模块。 滚筒包括由轴线表征的圆柱形表面,滚筒具有垂直于轴线的法线。 编码轨道包括布置在圆柱形表面上的多个交替反射和非反射条纹。 第一光源相对于法线以不透明的角度照亮条纹。 第一光电检测器定位成当滚筒相对于光电检测器移动时接收来自反射条纹的光源的光。 在一个实施例中,当轴旋转时,滚筒绕轴线旋转。 编码轨道可以在鼓的内部或外部。
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公开(公告)号:US20060151686A1
公开(公告)日:2006-07-13
申请号:US11031280
申请日:2005-01-07
申请人: Kean Ng , Sze Lee , Hock Tan , Weng Wong , Wee Yeap , Chee Lum , Kok Fo , Toshiya Hataguchi , Randeep Singh Singh
发明人: Kean Ng , Sze Lee , Hock Tan , Weng Wong , Wee Yeap , Chee Lum , Kok Fo , Toshiya Hataguchi , Randeep Singh Singh
IPC分类号: G01D5/34
CPC分类号: G01D5/34746 , G01D5/347 , G01D5/34707
摘要: An optical encoder includes a code strip having a first side, a second side, a first track comprising indicia thereon, and a second track comprising indicia thereon. The code strip is moveable along a displacement path with respect to the optical encoder. A light source positioned on the first side of the code strip directs light toward the code strip. A first detector element is positioned on the second side of the code strip and is generally aligned with the first track of the code strip. A second detector element is positioned on the second side of the code strip and is generally aligned with the second track of the code strip. The second detector element is also positioned so that the second detector element is located a spaced distance along the displacement path from the first detector element.
摘要翻译: 光学编码器包括具有第一侧,第二侧,其上包括标记的第一轨道和其上包括标记的第二轨道的码带。 编码条可以沿相对于光学编码器的位移路径移动。 位于代码带的第一侧上的光源将光朝着码条引导。 第一检测器元件位于代码条的第二侧上,并且通常与代码条的第一轨迹对齐。 第二检测器元件位于代码条的第二侧上,并且通常与代码条的第二轨迹对齐。 第二检测器元件也被定位成使得第二检测器元件沿着与第一检测器元件的位移路径间隔开距离。
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公开(公告)号:US20070221831A1
公开(公告)日:2007-09-27
申请号:US11757826
申请日:2007-06-04
申请人: Kean Ng , Sze Lee , Hock Tan , Weng Wong , Wee Yeap , Chee Lum , Kok Fo , Toshiya Hataguchi , Randeep Amarjit
发明人: Kean Ng , Sze Lee , Hock Tan , Weng Wong , Wee Yeap , Chee Lum , Kok Fo , Toshiya Hataguchi , Randeep Amarjit
IPC分类号: G01D5/34
CPC分类号: G01D5/34746 , G01D5/347 , G01D5/34707
摘要: An optical encoder includes a code strip having a first side, a second side, a first track comprising indicia thereon, and a second track comprising indicia thereon. The code strip is moveable along a displacement path with respect to the optical encoder. A light source positioned on the first side of the code strip directs light toward the code strip. A first detector element is positioned on the second side of the code strip and is generally aligned with the first track of the code strip. A second detector element is positioned on the second side of the code strip and is generally aligned with the second track of the code strip. The second detector element is also positioned so that the second detector element is located a spaced distance along the displacement path from the first detector element.
摘要翻译: 光学编码器包括具有第一侧,第二侧,其上包括标记的第一轨道和其上包括标记的第二轨道的码带。 编码条可以沿相对于光学编码器的位移路径移动。 位于代码带的第一侧上的光源将光朝着码条引导。 第一检测器元件位于代码条的第二侧上,并且通常与代码条的第一轨迹对齐。 第二检测器元件位于代码条的第二侧上,并且通常与代码条的第二轨迹对齐。 第二检测器元件也被定位成使得第二检测器元件沿着与第一检测器元件的位移路径间隔开距离。
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公开(公告)号:US07244928B2
公开(公告)日:2007-07-17
申请号:US11031280
申请日:2005-01-07
申请人: Kean Foong Ng , Sze Kuang Lee , Hock Aun Tan , Weng Fei Wong , Wee Jin Yeap , Chee Foo Lum , Kok Hing Fo , Toshiya Hataguchi , Randeep Singh A/L Amarjit Singh
发明人: Kean Foong Ng , Sze Kuang Lee , Hock Aun Tan , Weng Fei Wong , Wee Jin Yeap , Chee Foo Lum , Kok Hing Fo , Toshiya Hataguchi , Randeep Singh A/L Amarjit Singh
IPC分类号: G01D5/34
CPC分类号: G01D5/34746 , G01D5/347 , G01D5/34707
摘要: An optical encoder includes a code strip having a first side, a second side, a first track comprising indicia thereon, and a second track comprising indicia thereon. The code strip is moveable along a displacement path with respect to the optical encoder. A light source positioned on the first side of the code strip directs light toward the code strip. A first detector element is positioned on the second side of the code strip and is generally aligned with the first track of the code strip. A second detector element is positioned on the second side of the code strip and is generally aligned with the second track of the code strip. The second detector element is also positioned so that the second detector element is located a spaced distance along the displacement path from the first detector element.
摘要翻译: 光学编码器包括具有第一侧,第二侧,其上包括标记的第一轨道和其上包括标记的第二轨道的码带。 编码条可以沿相对于光学编码器的位移路径移动。 位于代码带的第一侧上的光源将光朝着码条引导。 第一检测器元件位于代码条的第二侧上,并且通常与代码条的第一轨迹对齐。 第二检测器元件位于代码条的第二侧上,并且通常与代码条的第二轨迹对齐。 第二检测器元件也被定位成使得第二检测器元件沿着与第一检测器元件的位移路径间隔开距离。
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公开(公告)号:US07394061B2
公开(公告)日:2008-07-01
申请号:US11218225
申请日:2005-08-31
IPC分类号: G01D5/34
CPC分类号: G01D5/34792
摘要: An optical encoder includes an encoder pattern having (i) an A/B pattern of first areas and second areas alternating in a first direction, wherein the first areas have a different optical transmissivity or reflectivity than the second areas, and (ii) an index pattern disposed adjacent the A/B pattern in the first direction.
摘要翻译: 光学编码器包括编码器图案,其具有(i)第一区域的A / B图案和在第一方向上交替的第二区域,其中第一区域具有与第二区域不同的透光率或反射率,以及(ii) 图案沿着第一方向布置在A / B图案附近。
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公开(公告)号:US07265336B2
公开(公告)日:2007-09-04
申请号:US10725696
申请日:2003-12-01
IPC分类号: G01D5/34
CPC分类号: G01D5/3473 , G01D5/34707
摘要: An encoder for measuring the position of a rotating shaft is disclosed. The encoder includes a drum having an encoding track thereon and a detector module having a light source and a photodetector. The drum includes a cylindrical surface characterized by an axis, the drum having a surface with a normal perpendicular to the axis. The encoding track includes a plurality of alternating reflective and non-reflective stripes arranged on the cylindrical surface. The first light source illuminates the stripes at an opaque angle relative to the normal. The first photodetector is positioned to receive light from the light source that is reflected from the reflective stripes when the drum moves relative to the photodetector. In one embodiment, the drum rotates about the axis when the shaft rotates. The encoding track can be either on the inside or outside of the drum.
摘要翻译: 公开了一种用于测量旋转轴的位置的编码器。 编码器包括其上具有编码轨道的滚筒和具有光源和光电检测器的检测器模块。 滚筒包括由轴线表征的圆柱形表面,滚筒具有垂直于轴线的法线。 编码轨道包括布置在圆柱形表面上的多个交替反射和非反射条纹。 第一光源相对于法线以不透明的角度照亮条纹。 第一光电检测器定位成当滚筒相对于光电检测器移动时接收来自反射条纹的光源的光。 在一个实施例中,当轴旋转时,滚筒绕轴线旋转。 编码轨道可以在鼓的内部或外部。
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公开(公告)号:US20070045526A1
公开(公告)日:2007-03-01
申请号:US11218225
申请日:2005-08-31
申请人: Saiful Saidan , Toshiya Hataguchi , Ting Ming
发明人: Saiful Saidan , Toshiya Hataguchi , Ting Ming
IPC分类号: G01D5/34
CPC分类号: G01D5/34792
摘要: An optical encoder includes an encoder pattern having (i) an A/B pattern of first areas and second areas alternating in a first direction, wherein the first areas have a different optical transmissivity or reflectivity than the second areas, and (ii) an index pattern disposed adjacent the A/B pattern in the first direction.
摘要翻译: 光学编码器包括编码器图案,其具有(i)第一区域的A / B图案和在第一方向上交替的第二区域,其中第一区域具有与第二区域不同的透光率或反射率,以及(ii) 图案沿着第一方向布置在A / B图案附近。
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