Refiner measurement system and method

    公开(公告)号:US06587803B2

    公开(公告)日:2003-07-01

    申请号:US10013102

    申请日:2001-11-06

    Inventor: Ola M. Johansson

    CPC classification number: D21D1/002 D21D1/30 D21D1/306

    Abstract: A sensor, sensor disk, sensor measurement correction system, and method used in measuring a parameter in the refining zone. The sensor includes a spacer that spaces its sensing element from the disk. In one preferred embodiment, the spacer is made of an insulating material that insulates the sensing element from the thermal mass of the disk to prevent the thermal mass from affecting sensor measurement. The sensor includes a housing carried by the spacer that, in turn, carries the sensing element. Where the sensing element is a temperature sensing element, the housing is thermally conductive and the housing and spacer enclose the sensing element. Each sensor is disposed in the refining surface, preferably in its own separate bore in the disk and flush with or below axial refiner bar height. Signals from one or more sensors are processed by a processing device linked to a module containing calibration data that is applied to make sensor measurements more accurate. The module holds calibration data from sensors that are precalibrated before the sensor disk in which they are assembled is shipped, along with the module, to a fiber processing plant where the disk is installed in a refiner and the module connected to the processing device. In one preferred embodiment the sensor or sensors are carried by a sensor module that can be a removable segment of a refiner disk.

    Device for checking and calibrating high precision inclinometric sensors
    2.
    发明授权
    Device for checking and calibrating high precision inclinometric sensors 失效
    用于检查和校准高精度倾斜传感器的装置

    公开(公告)号:US06557392B1

    公开(公告)日:2003-05-06

    申请号:US09743317

    申请日:2001-09-21

    CPC classification number: G01C25/00

    Abstract: The present invention relates to a device for checking and calibrating high precision inclinometric sensors. It comprises a substantially quadrangular planar base body made of highly rigid material, set to float on mercury placed inside a tank; a pair of micrometric positioning means of known weights, situated in proximity to concurrent edges of the base body, on the respective axes of symmetry of the base body, able to allow to change the baricentre and the inclination on the mercury of the base body by a value determined by the variation in the applied moment; a pair of screws for adjusting the zero point, situated on said base body and a seat located centrally to the base body for positioning an inclinometric sensor to be calibrated.

    Abstract translation: 本发明涉及用于检查和校准高精度倾斜传感器的装置。 它包括由高刚性材料制成的基本上四边形的平面基体,设置为浮在放置在罐内的汞上; 已知重量的一对微测量定位装置,位于基体的同时边缘附近,在基体的相应对称轴上,能够通过以下方式改变基座主体的重心和倾斜: 由施加时刻的变化确定的值; 用于调节零点的一对螺钉,位于所述基体上,并且位于基体的中心位置,用于定位待校准的倾斜传感器。

    Method of calibrating spectrophotometer
    3.
    发明授权
    Method of calibrating spectrophotometer 有权
    校准分光光度计的方法

    公开(公告)号:US06377899B1

    公开(公告)日:2002-04-23

    申请号:US09383886

    申请日:1999-08-26

    CPC classification number: G01J3/28 G01J3/06 G01J3/18

    Abstract: For calibrating a spectrophotometer having a monochromator with a rotary mechanism to rotate a diffraction grating for producing a monochromatic beam of light of a specified target wavelength, transmission errors by the rotary mechanism are preliminarily measured to obtain an error curve having peaks corresponding to feed angles. A smallest angular interval, greater than an allowable limit, between a pair of feed angles corresponding to a mutually adjacent pair of peaks in the error curve is selected. One or more lamps emitting bright lines with wavelength interval which corresponds to motion of the rotary mechanism by less than one half of the selected smallest angular interval are used as a light source. Control values to be supplied to the rotary mechanism for obtaining monochromatic beams of light from the bright lines emitted from the selected lamps are determined by measurements. A calibration table, from which a required control value corresponding to a specified wavelength value can be retrieved, is produced from these control values and wavelength values of the bright lines and is stored in a memory device.

    Abstract translation: 为了校准具有旋转机构的单色仪的分光光度计,以旋转用于产生指定目标波长的单色光束的衍射光栅,预先测量旋转机构的传输误差,以获得具有与进给角度对应的峰值的误差曲线。 选择对应于误差曲线中相互相邻的峰对的一对进给角之间的最大角度间隔(大于允许极限)。 一个或多个灯发出亮线,其波长间隔对应于旋转机构的运动小于所选择的最小角度间隔的一半,被用作光源。 通过测量确定要提供给旋转机构的控制值,用于从所选择的灯发出的亮线获得单色光束。 从这些控制值和亮线的波长值产生校准表,可从中检索与指定波长值相对应的所需控制值,并存储在存储器件中。

    Error detection and fault isolation for multi-function air data probes and systems
    4.
    发明授权
    Error detection and fault isolation for multi-function air data probes and systems 有权
    多功能空气数据探头和系统的错误检测和故障隔离

    公开(公告)号:US06761057B2

    公开(公告)日:2004-07-13

    申请号:US09952043

    申请日:2001-09-13

    CPC classification number: G01P21/025 G01P13/025

    Abstract: A method of detecting errors in air data sensing systems having multi-function probes being used in combinations to define probe systems includes a step (A) of, for each probe system, making a first prediction of an aircraft parameter as a function of local angles of attack at two member probes of the particular system, and making a second prediction of the aircraft parameter as a function of local pressure ratios at the two member probes of the particular system. A step (B) is performed in which, for each of the probe systems, the first and second predictions of the aircraft parameter are compared to determine whether the first and second predictions are within a predetermined threshold of each other. Then, a step (C) is performed in which, for each of the probe systems, if the first and second predictions of the aircraft parameter are not within the predetermined threshold of each other, then the particular probe system is identified as having a malfunctioning member probe.

    Abstract translation: 一种用于检测具有组合定义探测系统的多功能探测器的空气数据传感系统中的误差的方法,包括对于每个探测系统,对飞机参数的第一预测作为局部角度的函数的步骤(A) 在特定系统的两个成员探针处的攻击,以及作为特定系统的两个成员探针处的局部压力比的函数的飞机参数的第二预测。 执行步骤(B),其中对于每个探测系统,比较飞行器参数的第一和第二预测以确定第一和第二预测是否在彼此的预定阈值内。 然后,执行步骤(C),其中对于每个探测系统,如果飞行器参数的第一和第二预测不在彼此的预定阈值内,则特定探测系统被识别为具有故障 成员探针。

    Accelerometer compensation in an inertial navigation system
    5.
    发明授权
    Accelerometer compensation in an inertial navigation system 有权
    惯性导航系统中的加速度计补偿

    公开(公告)号:US06634207B1

    公开(公告)日:2003-10-21

    申请号:US09686165

    申请日:2000-10-10

    CPC classification number: G01C21/16 G01C25/00

    Abstract: The invention is a method and apparatus for improving the accuracy of an inertial navigation system. The method comprises (1) obtaining a measure of the angular velocity of a body frame of reference having a first axis, a second axis, and a third axis, (2) obtaining a measure of the acceleration of a first reference point in the direction of the first axis, a second reference point in the direction of the second axis, and a third reference point in the direction of the third axis, the first, second, and third reference points being fixed in the body frame, and (3) determining compensated acceleration values. A compensated acceleration value is the difference of the measure of acceleration of a reference point and a compensation quantity. A compensation quantity is an estimate of the portion of the acceleration of the reference point resulting from the rotation of the body frame. The method further comprises establishing the optimum navigation center based on a criterion of goodness. The criterion of goodness is minimal weighted acceleration error where acceleration error is a function of the direction of the angular velocity vector and weighted acceleration error is obtained by multiplying the acceleration error by a weighting function and integrating the result over all directions of the angular velocity vector.

    Abstract translation: 本发明是提高惯性导航系统精度的方法和装置。 该方法包括:(1)获得具有第一轴线,第二轴线和第三轴线的车身参考系的角速度的测量,(2)获得第一参考点在方向上的加速度的量度 的第一轴,第二基准点和第三轴的第三基准点,第一,第二和第三参考点固定在车体框架中,(3) 确定补偿加速度值。 补偿加速度值是参考点的加速度和补偿量之间的差值。 补偿量是由身体框架的旋转导致的参考点的加速度的部分的估计。 该方法还包括基于良好标准建立最佳导航中心。 良好的标准是最小加权加速度误差,其中加速度误差是角速度矢量方向的函数,加权加速度误差是通过将加速度误差乘以加权函数并将结果积分在角速度矢量的所有方向上而得到的 。

    Apparatus for measuring three-dimensional volumetric errors in multiaxis machine tool
    6.
    发明授权
    Apparatus for measuring three-dimensional volumetric errors in multiaxis machine tool 有权
    用于测量多轴机床三维体积误差的装置

    公开(公告)号:US06269544B1

    公开(公告)日:2001-08-07

    申请号:US09479903

    申请日:2000-01-10

    CPC classification number: G01B21/04

    Abstract: An apparatus for measuring three-dimensional volumetric errors in a multiaxis machine tool is disclosed. The apparatus comprises a kinematic ball bar provided with two balls at both ends thereof as a basic construction. A U-shaped bar with two extension arms is integrated with the ball bar. A vertical post is positioned relative to the U-shaped bar and is integrated with one of the two balls. A sleeve is fitted over the post and two guide bars is fixedly and longitudinally assembled with an external surface of the sleeve at opposite positions. Each of the guide bars is provided with a slot at a lower portion thereof for movably receiving an operating pin.

    Abstract translation: 公开了一种用于测量多轴机床中的三维体积误差的装置。 该装置包括在其两端设置有两个球作为基本结构的运动球杆。 具有两个延伸臂的U形杆与球棒一体化。 垂直柱相对于U形杆定位并且与两个球中的一个一体化。 一个套筒安装在柱上,两个导杆与相对位置的套筒的外表面固定地和纵向组装。 每个导杆在其下部设置有用于可移动地接收操作销的槽。

    Imaging sensor defect map storage
    8.
    发明授权
    Imaging sensor defect map storage 有权
    成像传感器缺陷图存储

    公开(公告)号:US06526366B1

    公开(公告)日:2003-02-25

    申请号:US09574690

    申请日:2000-05-18

    Inventor: Randy R. Dunton

    CPC classification number: H04N5/367

    Abstract: An imaging sensor includes a defect marker allowing an imaging device in which the imaging sensor is installed to determine which pixels in the CMOS sensor are defective. During manufacturing, the pixels in the imaging sensor are tested. Defect markers are used for defective pixels, preferably using a non-volatile marking technique. After the imaging sensor is installed in the imaging device, the imaging device reads the defect markers from the imaging sensor to determine the defective pixels. The defect markers are read by exposing the pixels in the imaging sensor to photons. Eventually, all pixels in the imaging sensor should show some exposure. Pixels that still read as unexposed are then defective pixels. The imaging device can then compensate for defective pixels: e.g., by interpolating the defective pixels from their neighbors.

    Abstract translation: 成像传感器包括允许其中安装有成像传感器的成像装置确定CMOS传感器中的哪些像素有缺陷的缺陷标记。 在制造期间,测试成像传感器中的像素。 缺陷标记用于缺陷像素,优选使用非易失性标记技术。 在将成像传感器安装在成像装置中之后,成像装置从成像传感器读取缺陷标记以确定缺陷像素。 通过将成像传感器中的像素曝光到光子来读取缺陷标记。 最终,成像传感器中的所有像素应显示一些曝光。 仍然读为未曝光的像素然后是有缺陷的像素。 然后,成像装置可以补偿缺陷像素,例如通过从其邻居内插缺陷像素。

    Method and apparatus for calibration of no-compensation and universal wheel adapters utilized in vehicle wheel alignment procedures
    9.
    发明授权
    Method and apparatus for calibration of no-compensation and universal wheel adapters utilized in vehicle wheel alignment procedures 有权
    用于校准车轮定位程序中使用的无补偿和通用车轮适配器的方法和装置

    公开(公告)号:US06427346B1

    公开(公告)日:2002-08-06

    申请号:US09585006

    申请日:2000-06-01

    CPC classification number: G01B21/26

    Abstract: A method and apparatus for the calibration of vehicle wheel alignment sensors or optical targets and for the detection and correction of wear or damage to no-compensation type wheel adapters to which the vehicle wheel alignment sensors are attached during a vehicle wheel alignment procedure. A first aspect of the present invention is a method for electronically storing separate calibration values associated with a vehicle wheel alignment sensor or optical target for a variety of types of vehicle wheel adapters. A second aspect of the present invention is a method and apparatus for detecting and compensating for wear or damage to no-compensation type wheel adapters by utilizing a known flat surface against which the contact points of the adapter are placed, any misalignment of the sensor mounting shaft axis from the plane is detected and corrected for, either by adjustment of the contact points or by adjustment of the sensor mounting shaft. An additional aspect of the present invention is the inclusion of more than three contact points on the wheel adapter to which the vehicle wheel alignment sensor is attached to facilitate detection of damage or wear to the wheel adapter by providing a visual indication of the damage or wear when the wheel adapter is placed on the flat surface.

    Abstract translation: 一种用于校准车轮对准传感器或光学目标的方法和装置,并且用于在车辆车轮定位过程期间检测和校正车轮对准传感器附接到的无补偿型车轮适配器的磨损或损坏。 本发明的第一方面是用于电子地存储与用于各种类型的车辆车轮适配器的车轮对准传感器或光学目标相关联的分离的校准值的方法。 本发明的第二方面是一种用于通过利用已知的适配器的接触点的平坦表面来检测和补偿无补偿型车轮适配器的磨损或损坏的方法和装置,传感器安装件的任何未对准 通过调整接触点或通过调节传感器安装轴来检测和校正轴平面的轴线。 本发明的另一方面是在车轮定位传感器附接到的车轮适配器上包括三个以上的接触点,以便通过提供损伤或磨损的视觉指示来便于对车轮适配器的损坏或磨损的检测 当车轮适配器放置在平坦表面上时。

    Refiner measurement system and method
    10.
    发明授权
    Refiner measurement system and method 失效
    精磨机测量系统及方法

    公开(公告)号:US06314381B1

    公开(公告)日:2001-11-06

    申请号:US09520915

    申请日:2000-03-08

    Inventor: Ola M. Johansson

    CPC classification number: D21D1/002 D21D1/30 D21D1/306

    Abstract: A sensor, sensor disk, sensor measurement correction system, and method used in measuring a parameter in the refining zone. The sensor includes a spacer that spaces its sensing element from the disk. In one preferred embodiment, the spacer is made of an insulating material that insulates the sensing element from the thermal mass of the disk to prevent the thermal mass from affecting sensor measurement. The sensor includes a housing carried by the spacer that, in turn, carries the sensing element. Where the sensing element is a temperature sensing element, the housing is thermally conductive and the housing and spacer enclose the sensing element. Each sensor is disposed in the refining surface, preferably in its own separate bore in the disk and flush with or below axial refiner bar height. Signals from one or more sensors are processed by a processing device linked to a module containing calibration data that is applied to make sensor measurements more accurate. The module holds calibration data from sensors that are precalibrated before the sensor disk in which they are assembled is shipped, along with the module, to a fiber processing plant where the disk is installed in a refiner and the module connected to the processing device. In one preferred embodiment the sensor or sensors are carried by a sensor module that can be a removable segment of a refiner disk.

    Abstract translation: 用于测量精炼区参数的传感器,传感器盘,传感器测量校正系统和方法。 该传感器包括一个将传感元件与光盘隔开的间隔物。 在一个优选实施例中,间隔件由绝缘材料制成,其将感测元件与盘的热质量隔离,以防止热质量影响传感器测量。 传感器包括由间隔件承载的壳体,其又承载感测元件。 在感测元件是温度感测元件的地方,壳体是导热的,并且壳体和间隔件包围感测元件。 每个传感器设置在精炼表面中,优选地位于盘中的其独立的孔中并且与轴向精炼棒高度齐平或相反。 来自一个或多个传感器的信号由连接到包含校准数据的模块的处理设备处理,所述校准数据被应用以使传感器测量更准确。 模块将传感器的校准数据保存在预先校准的传感器之前,将组装的传感器盘与模块一起运送到光纤处理设备,其中光盘安装在精磨机中,模块连接到处理设备。 在一个优选实施例中,传感器或传感器由传感器模块承载,传感器模块可以是精磨机盘的可移除部分。

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