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1.发明授权公开(公告)号：US06905258B2
公开(公告)日：2005-06-14
申请号：US10650453
申请日：2003-08-27
CPC分类号： G01D5/34723
摘要： A fiber optic readhead arrangement for imaging a scale onto a set of optical fiber receiver channels is disclosed. The readhead arrangement includes an imaging lens and may include an aperture positioned at a focal point of the imaging lens in a telecentric arrangement. An axicon lens may be utilized to direct source light away from the imaging lens and into a ring-shaped annular source lens which surrounds the imaging lens. A source lens may concentrate source light on the scale in an area where it will be imaged back through the imaging lens to the readhead. In one embodiment, multiple source fibers may be provided around the perimeter of the fiber optic readhead arrangement. In another embodiment, the receiver fibers may also function as source fibers. In various exemplary embodiments, high levels of displacement signal interpolation may be achieved to provide high resolution measurement.
摘要翻译： 公开了一种用于将刻度成像到一组光纤接收器通道上的光纤读头装置。 读取头装置包括成像透镜，并且可以包括以远心布置定位在成像透镜的焦点处的孔。 可以使用旋转透镜来将源光引导离开成像透镜并且将其引导到围绕成像透镜的环形环形源透镜中。 源透镜可以将源光集中在其将通过成像透镜成像回到读取头的区域中的刻度上。 在一个实施例中，可以围绕光纤读头装置的周边设置多个源光纤。 在另一个实施例中，接收器光纤也可用作源光纤。 在各种示例性实施例中，可以实现高水平的位移信号内插以提供高分辨率测量。
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2.发明授权Encoder scale writing or calibration at an end-use installation based on correlation sensing 有权基于相关感知的最终使用安装编码器刻度或校准公开(公告)号：US07432496B1
公开(公告)日：2008-10-07
申请号：US11829715
申请日：2007-07-27
申请人： Michael Nahum , Joseph D. Tobiason
发明人： Michael Nahum , Joseph D. Tobiason
CPC分类号： G01D5/34707 , G01D18/008
摘要： A method for writing or calibrating the scale of a scale-based position encoder. The scale is installed where it will be used to provide ongoing position measurements for a host system. The image correlation sensor is temporarily mounted proximate to the mounting position of the scale-based position encoder readhead on the host system, and is moved along the measuring axis relative to the scale, to provide corresponding displacement measurement information. The displacement measurement information is used to govern a scale writing process or a calibration process for the scale-based position encoder, such that the displacement measurement information at least partially governs the values of respective ongoing position measurements provided by the scale-based position encoder at respective positions along the measuring axis. A two-axis image correlation displacement sensor is advantageously used to detect and/or corrected various potential errors during the calibration or writing process.
摘要翻译： 一种用于写入或校准基于刻度的位置编码器的刻度的方法。 规模安装在将用于为主机系统提供正在进行的位置测量的位置。 图像相关传感器临时安装在主机系统上靠近基于刻度的位置编码器读取头的安装位置，并且相对于刻度沿着测量轴线移动，以提供对应的位移测量信息。 位移测量信息用于控制基于比例的位置编码器的刻度写入过程或校准过程，使得位移测量信息至少部分地控制由基于比例的位置编码器提供的各个正在进行的位置测量值 沿着测量轴的各个位置。 有利地，双轴图像相关位移传感器用于在校准或写入过程期间检测和/或校正各种潜在误差。
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3.发明授权Method and apparatus for measuring wavelength changes in a high-resolution measurement system 有权用于测量高分辨率测量系统中的波长变化的方法和装置公开(公告)号：US07088441B2
公开(公告)日：2006-08-08
申请号：US10251449
申请日：2002-09-19
IPC分类号： G01J1/42
CPC分类号： G01J9/00
摘要： A method and apparatus for measuring a wavelength-related characteristic of a radiation source is provided. Two beams travel through substantially identical filters at different angles, which produces two different output signals that behave similarly with respect to power and/or temperature variations. In various embodiments, the two beams are filtered through two portions of a single filter. A diffraction grating may be mounted to the filter to split incident radiation into first and second beams. The beams thus travel through the filter at different angles, to produce two output signals that can be combined to compensate for common-mode errors as well as power variations. Extremely small size and high-resolution may be achieved. Single or multiple detectors may also be used. Filter temperature sensitivities may also be compensated based on a direct temperature measurement or based on outputs derived from two additional beams through filters with a different temperature dependency from the filters used for the first two beams. Alternatively, the angle at which a beam travels through a filter may be physically adjusted to compensate for temperature change.
摘要翻译： 提供了用于测量辐射源的波长相关特性的方法和装置。 两个光束以不同的角度行进基本相同的滤光片，这产生两个不同的输出信号，其功率和/或温度变化类似。 在各种实施例中，两个光束通过单个滤光片的两部分进行滤光。 衍射光栅可以安装到滤光器，以将入射的辐射分成第一和第二光束。 因此，光束以不同的角度行进通过滤光器，以产生两个可组合的输出信号，以补偿共模误差以及功率变化。 可以实现非常小的尺寸和高分辨率。 也可以使用单个或多个检测器。 滤波器温度敏感度也可以基于直接温度测量或基于从两个附加光束通过滤波器得到的输出进行补偿，该滤波器具有与用于前两个波束的滤波器不同的温度依赖性。 或者，光束穿过滤光器的角度可以被物理地调节以补偿温度变化。
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公开(公告)号：US08978263B2
公开(公告)日：2015-03-17
申请号：US13563482
申请日：2012-07-31
申请人： Michael Nahum , Kim W. Atherton
发明人： Michael Nahum , Kim W. Atherton
摘要： A handheld measurement tool with a display that can be defined by a user. The handheld measurement tool may be a portable measurement gauge (e.g. a digital caliper, digital “dial” gauge, height gauge, micrometer, indicator, etc.) that may be utilized for measuring precise physical dimensions of workpieces. The display may be independently modified according to a customer's individual needs for various precision measurement applications. A remote device (e.g. PC, laptop, tablet, smartphone, etc.) may be utilized for reconfiguring the display, wherein a user can select and modify display format arrangements on the remote device. When the remote device is coupled to the portable measurement gauge, the gauge display is reconfigured so as to have a similar appearance to the defined display format arrangement. In certain embodiments, voice commands may be reconfigured and used for controlling the gauge display.
摘要翻译： 具有可由用户定义的显示器的手持式测量工具。 手持式测量工具可以是可用于测量工件的精确物理尺寸的便携式测量计（例如，数字卡尺，数字“表盘”，高度计，千分尺，指示器等）。 显示器可以根据客户对各种精密测量应用的个体需求而独立地进行修改。 远程设备（例如PC，膝上型计算机，平板电脑，智能手机等）可用于重新配置显示器，其中用户可以选择和修改远程设备上的显示格式布置。 当远程设备耦合到便携式测量计时，量规显示器被重新配置为具有与定义的显示格式布置相似的外观。 在某些实施例中，语音命令可以被重新配置并用于控制量规显示。
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公开(公告)号：US20140033554A1
公开(公告)日：2014-02-06
申请号：US13563482
申请日：2012-07-31
申请人： Michael Nahum , Kim W. Atherton
发明人： Michael Nahum , Kim W. Atherton
IPC分类号： G01B5/02
摘要： A handheld measurement tool with a display that can be defined by a user. The handheld measurement tool may be a portable measurement gauge (e.g. a digital caliper, digital “dial” gauge, height gauge, micrometer, indicator, etc.) that may be utilized for measuring precise physical dimensions of workpieces. The display may be independently modified according to a customer's individual needs for various precision measurement applications. A remote device (e.g. PC, laptop, tablet, smartphone, etc.) may be utilized for reconfiguring the display, wherein a user can select and modify display format arrangements on the remote device. When the remote device is coupled to the portable measurement gauge, the gauge display is reconfigured so as to have a similar appearance to the defined display format arrangement. In certain embodiments, voice commands may be reconfigured and used for controlling the gauge display.
摘要翻译： 具有可由用户定义的显示器的手持式测量工具。 手持式测量工具可以是可用于测量工件的精确物理尺寸的便携式测量计（例如，数字卡尺，数字“表盘”，高度计，千分尺，指示器等）。 显示器可以根据客户对各种精密测量应用的个体需求而独立地进行修改。 远程设备（例如，PC，膝上型计算机，平板电脑，智能手机等）可用于重新配置显示器，其中用户可以选择和修改远程设备上的显示格式布置。 当远程设备耦合到便携式测量计时，量规显示器被重新配置为具有与定义的显示格式布置相似的外观。 在某些实施例中，语音命令可以被重新配置并用于控制仪表显示。
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6.发明申请Hand-size structured-light three-dimensional metrology imaging system and method 有权手工结构光三维计量成像系统及方法公开(公告)号：US20070097381A1
公开(公告)日：2007-05-03
申请号：US11263600
申请日：2005-10-31
申请人： Joseph Tobiason , Michael Nahum , Paul Gladnick
发明人： Joseph Tobiason , Michael Nahum , Paul Gladnick
IPC分类号： G01B11/24
摘要： A hand-size structured-light three-dimensional metrology imaging system and method. Laser illumination stripes are scanned across a workpiece surface for obtaining z-height and x-coordinate information. A Scheimpflug configuration is used. Utilizing this configuration, a laser illumination stripe across a raised workpiece portion will be shown in a contour image at the image sensor in a focused manner, such that the offsets along the contour image line due to the raised portions of the workpiece surface can be accurately converted to a z-height measurement. The y-axis positions associated with each of the contour images, used for reassembling the information from the contour images into a surface map for the workpiece, may be determined without the need for a position sensor, by including a reference object in the contour images.
摘要翻译： 手工尺寸结构光三维计量成像系统及方法。 激光照射条纹跨工件表面扫描，以获得z高度和x坐标信息。 使用Scheimpflug配置。 利用这种构造，将以聚焦方式在跨越升高的工件部分的激光照射条纹图像显示在图像传感器的轮廓图像中，使得由于工件表面的凸起部分而沿着轮廓图像线的偏移可以精确地 转换为z高度测量。 可以通过在轮廓图像中包括参考对象来确定与轮廓图像中的每个轮廓图像相关联的用于将信息从轮廓图像重新组装到工件的表面图中的y轴位置，而不需要位置传感器 。
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公开(公告)号：US07065258B2
公开(公告)日：2006-06-20
申请号：US09860636
申请日：2001-05-21
申请人： Michael Nahum
发明人： Michael Nahum
CPC分类号： G01B11/002 , G01B11/02
摘要： A reference image updating method and apparatus used in an image-correlation system which updates a reference image when predetermined control parameters are met. An image corresponding to a displacement of a surface is captured and stored. A reference image and the captured image are compared at different offsets in a displacement direction. When the displacement falls within set predetermined displacement values or a predetermined value for a sample time that corresponds to the displacement, then the reference image is updated. By updated the reference image in this manner, systematic errors are prevented from accumulating thereby significantly removing systematic errors in the image-correlation system.
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8.发明申请公开(公告)号：US20050047728A1
公开(公告)日：2005-03-03
申请号：US10650453
申请日：2003-08-27
申请人： Joseph Tobiason , Michael Nahum , Kim Atherton
发明人： Joseph Tobiason , Michael Nahum , Kim Atherton
CPC分类号： G01D5/34723
摘要： A fiber optic readhead arrangement for imaging a scale onto a set of optical fiber receiver channels is disclosed. The readhead arrangement includes an imaging lens and may include an aperture positioned at a focal point of the imaging lens in a telecentric arrangement. An axicon lens may be utilized to direct source light away from the imaging lens and into a ring-shaped annular source lens which surrounds the imaging lens. A source lens may concentrate source light on the scale in an area where it will be imaged back through the imaging lens to the readhead. In one embodiment, multiple source fibers may be provided around the perimeter of the fiber optic readhead arrangement. In another embodiment, the receiver fibers may also function as source fibers. In various exemplary embodiments, high levels of displacement signal interpolation may be achieved to provide high resolution measurement.
摘要翻译： 公开了一种用于将刻度成像到一组光纤接收器通道上的光纤读头装置。 读取头装置包括成像透镜，并且可以包括以远心布置定位在成像透镜的焦点处的孔。 可以使用旋转透镜来将源光引导离开成像透镜并且将其引导到围绕成像透镜的环形环形源透镜中。 源透镜可以将源光集中在其将通过成像透镜成像回到读取头的区域中的刻度上。 在一个实施例中，可以围绕光纤读头装置的周边设置多个源光纤。 在另一个实施例中，接收器光纤也可用作源光纤。 在各种示例性实施例中，可以实现高水平的位移信号内插以提供高分辨率测量。
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9.发明授权Position transducer having position-dependent amplitude encoding applying first and second modulations 有权具有位置相关幅度编码的位置传感器应用第一和第二调制公开(公告)号：US06335618B1
公开(公告)日：2002-01-01
申请号：US09412789
申请日：1999-10-05
申请人： Michael Nahum
发明人： Michael Nahum
IPC分类号： G01B702
CPC分类号： G01D5/2053 , G01B3/205
摘要： A high-accuracy inductive absolute position transducer system has two members movable relative to each other and includes an amplitude modulating transducer including flux modulators of progressively varying properties. The amplitude modulating transducer includes a transmitter winding and at least one set of receiver windings. An amplitude modulating transducer has a plurality of flux modulator zones distributed along the measuring axis. Flux modulators are formed in at least some of the flux modulator zones. The properties of different flux modulators are varied so as to generate varied flux. A signal generating and processing circuit is connected to the transmitter winding. The flux modulators modulate the inductive coupling based on the relative position between the read head member and the scale member.
摘要翻译： 高精度感应绝对位置传感器系统具有两个可相对于彼此移动的构件，并且包括具有渐变特性的通量调节器的振幅调制换能器。 振幅调制换能器包括发射器绕组和至少一组接收器绕组。 振幅调制换能器具有沿着测量轴分布的多个通量调节区。 磁通调制器形成在至少一些通量调节区中。 不同通量调节器的性质是变化的，以便产生变化的通量。 信号发生和处理电路连接到发送器绕组。 磁通量调制器基于读头元件与刻度元件之间的相对位置调制电感耦合。
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公开(公告)号：US07707738B2
公开(公告)日：2010-05-04
申请号：US12126781
申请日：2008-05-23
申请人： Michael Nahum , Michael Vilhauer , Yuhua Ding , Casey Emtman
发明人： Michael Nahum , Michael Vilhauer , Yuhua Ding , Casey Emtman
摘要： A low cost digital ruler with desirable ergonomic characteristics and accuracy. A low friction sliding position indicator includes a compliant element that forces its connection pads against the ruler's electronic scale contacts, to determining measurement positions. The position indicator includes an instrument receiving feature that engages a writing instrument and moves in conjunction with it, thereby measuring a line as it is drawn. A position indicator preload arrangement includes the compliant element, which is deflected to exert a preload that forces the sliding position indicator against a housing of the digital ruler. Alignment features of the position indicator and housing have cross sections that provide a self-aligning angled interference fit, which accurately aligns the sliding position indicator, under the action of the preload force. Misalignment constraint surfaces constrain the sliding position indicator in approximate alignment by, even if an external force overcomes the preload force.
摘要翻译： 低成本数字尺，具有理想的人体工程学特性和精度。 低摩擦滑动位置指示器包括使其连接垫抵抗尺子的电子秤触点的顺应元件，以确定测量位置。 位置指示器包括接合书写工具并与之一起移动的乐器接收特征，从而在绘制时测量线条。 位置指示器预加载装置包括柔性元件，该元件被偏转以施加将滑动位置指示器抵靠数字标尺的壳体的预载荷。 位置指示器和外壳的对准特征具有提供自对准角度过盈配合的横截面，其在预加载力的作用下精确对准滑动位置指示器。 即使外力克服预载力，不对准约束表面约束滑动位置指示器大致对齐。
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