Instrumentation resonance compensation
    11.
    发明授权
    Instrumentation resonance compensation 失效
    仪表谐振补偿

    公开(公告)号:US4422336A

    公开(公告)日:1983-12-27

    申请号:US326558

    申请日:1981-12-02

    Applicant: James C. Beebe

    Inventor: James C. Beebe

    CPC classification number: G01B7/16

    Abstract: An analog compensation circuit for compensating for mechanical instrumentation resonance. The transfer function of the instrumentation resonance phenomenon is determined, and the compensation circuit is constructed to produce the inverse transfer function of the instrumentation resonance transfer function. The input of the compensation circuit is connected to the electrical instrumentation output signal. With the instrumentation resonance modeled as the equivalent of a second order filter, the compensation circuit includes sections for producing at a combined output a first intermediate signal representative of a constant term, a second intermediate signal representative of a first derivative term, and a third intermediate signal representative of a second derivative term.

    Abstract translation: 用于补偿机械仪表谐振的模拟补偿电路。 确定仪器谐振现象的传递函数,并且补偿电路被构造成产生仪器谐振传递函数的逆传递函数。 补偿电路的输入连接到电气仪表输出信号。 在仪器谐振被建模为等效于二阶滤波器的情况下,补偿电路包括用于在组合输出端产生表示常数项的第一中间信号,表示一阶导数项的第二中间信号和第三中间信号 代表二阶导数项的信号。

    Vibration compensation system for tire testing systems
    12.
    发明授权
    Vibration compensation system for tire testing systems 有权
    轮胎测试系统振动补偿系统

    公开(公告)号:US06834559B1

    公开(公告)日:2004-12-28

    申请号:US10030610

    申请日:2002-01-08

    Applicant: James C. Beebe

    Inventor: James C. Beebe

    CPC classification number: G01M17/022

    Abstract: An apparatus and method for improving the measurement of force variation in a tire (20) being tested on a tire uniformity machine. The apparatus includes a loadwheel assembly (500) including a rotatable loadwheel (510) connected to load sensors (530, 540) for detecting forces imposed on the loadwheel (510) by a tire (20) being tested. Vibration sensors (700, 702, 704) are associated with the loadwheel assembly (500) for detecting vibrations in the loadwheel (510) caused by forces other than the forces applied by the tire (20). Means is provided for subtracting the vibration induced forces from the tire (20) imposed forces in order to provide more precise tire uniformity data. The vibration sensors (700, 702, 704) which comprise accelerometers are used to determine vibration induced forces in the lateral and radial direction with respect to the loadwheel (510). The signals provided by the accelerometers (700, 702, 704) are communicated to a differential amplifier which also receives signals from the load cells (530, 540). The net signal more closely represents the actual force variation generated by the tire (20) being tested.

    Abstract translation: 一种用于改进在轮胎均匀机上测试的轮胎(20)中的力变化测量的装置和方法。 该装置包括负载轮组件(500),其包括连接到负载传感器(530,540)的可旋转负载轮(510),用于通过被测试的轮胎(20)检测施加在负载轮(510)上的力。 振动传感器(700,702,704)与负载轮组件(500)相关联,用于检测由轮胎(20)施加的力以外的力引起的负载轮(510)中的振动。 提供了用于从轮胎(20)施加的力减去振动引起的力以提供更精确的轮胎均匀性数据的装置。 使用包括加速度计的振动传感器(700,702,704)来确定横向和径向方向上相对于负载轮(510)的振动诱发力。 由加速度计(700,702,704)提供的信号被传送到差分放大器,该差分放大器还接收来自测力传感器(530,540)的信号。 净信号更接近地表示由被测试的轮胎(20)产生的实际力变化。

    Damped high speed tire testing machine
    13.
    发明授权
    Damped high speed tire testing machine 失效
    阻尼高速轮胎试验机

    公开(公告)号:US5014551A

    公开(公告)日:1991-05-14

    申请号:US410935

    申请日:1989-09-22

    CPC classification number: G01M17/022

    Abstract: A machine for measuring force variation or imbalance of tires particularly at high speeds. A rotating roadwheel is engaged by a tire mounted on a spindle. Force sensing means, such as load cells, are operably interposed between the tire spindle and a force sensor mount. To minimize the adverse effects of mechanical resonance of the machine on force measurement accuracy, the roadwheel and/or the force sensor mount are connected to ground through dampers which provide a damping ratio of at least about five percent and preferably higher. Where the force sensor mount is to be supported by such damping means, the invention further contemplates interposing a large mass between that damping means and the force sensor mount.

    Abstract translation: 一种用于测量轮胎的力变化或不平衡的机器,特别是在高速下。 旋转的轮子由安装在主轴上的轮胎接合。 诸如称重传感器的力传感装置可操作地插入在轮胎心轴和力传感器座之间。 为了最小化机器机械共振对力测量精度的不利影响,路面和/或力传感器座通过阻尼器连接到地面,阻尼器提供至少约百分之五,优选地更高的阻尼比。 在力传感器座被这种阻尼装置支撑的地方,本发明进一步考虑在该阻尼装置和力传感器座之间插入一大块。

    Stepped rim for tire testing machine
    14.
    发明授权
    Stepped rim for tire testing machine 失效
    轮胎试验机用轮辋

    公开(公告)号:US4976141A

    公开(公告)日:1990-12-11

    申请号:US487832

    申请日:1990-03-05

    CPC classification number: G01M17/021

    Abstract: A tire rim for a tire testing machine has a stepped contour providing multiple positions to accommodate tires of differing bead diameters. One or more filler rings are mountable on a bead seat to provide the proper contour for inflating a tire having the next smaller diameter bead seated on the adjacent bead seat.

    Abstract translation: 用于轮胎试验机的轮胎边缘具有提供多个位置的阶梯轮廓,以适应不同胎圈直径的轮胎。 一个或多个填充环安装在胎圈座上,以提供适当的轮廓,用于使具有下一个更小直径的胎圈的轮胎充气,该胎圈位于相邻胎圈座上。

    Rim mount for tire uniformity machine
    15.
    发明授权
    Rim mount for tire uniformity machine 失效
    轮胎均匀机架

    公开(公告)号:US4785864A

    公开(公告)日:1988-11-22

    申请号:US160695

    申请日:1988-02-26

    CPC classification number: B60C25/00 G01M17/021

    Abstract: A rim mount for a tire uniformity machine. The upper rim has bolts that cooperate with keyhole slots in an adaptor to mount the upper rim. The lower rim has keyhole slots that cooperate with bolts threaded into a lower chuck to mount the lower rim.

    Abstract translation: 轮胎均匀机的轮辋安装。 上边缘具有与适配器中的键孔槽配合以安装上边缘的螺栓。 下边缘具有锁孔,其与螺纹拧入下卡盘中的螺栓配合以安装下边缘。

    Apparatus and method for angle-dependent processing of objects
    16.
    发明授权
    Apparatus and method for angle-dependent processing of objects 失效
    对象角度依赖处理的装置和方法

    公开(公告)号:US5351405A

    公开(公告)日:1994-10-04

    申请号:US52380

    申请日:1993-04-23

    Applicant: James C. Beebe

    Inventor: James C. Beebe

    CPC classification number: G01M1/30

    Abstract: Methods and apparatus for determining an angular location on a round object during a current operation in order to facilitate positioning the object for subsequent operation. At a first station, an angular location identifying feature is sensed, and an angle at which a predetermined desired angular location is located with respect to the feature is determined. At a second station, the feature is sensed, the object is indexed from the feature in an amount equal to the angle, and the object is marked at the relocated predetermined desired angular location. Another method eliminates the marking step at the second station, and the subsequent operation is performed instead. Apparatus comprises a first station means and a second station means. The first station means includes means for sensing an angular location identifying feature on the object and measurement means for determining an angle at which a predetermined desired angular location on the object is located with respect to the feature. Second station means includes sensing means for sensing the feature, indexing means for indexing from the feature in an amount equal to the angle, and marking means for marking the object at the relocated desired location.

    Abstract translation: 用于在当前操作期间确定圆形物体上的角位置的方法和装置,以便于将物体定位以用于随后的操作。 在第一站处,检测角位置识别特征,并且确定预定的期望角位置相对于特征位于的角度。 在第二站处,感测特征,物体以等于该角度的量从特征索引,并且在重新定位的预定期望角度位置标记物体。 另一种方法消除了在第二站处的标记步骤,而代之以后续的操作。 装置包括第一站装置和第二站装置。 第一站装置包括用于感测物体上的角位置识别特征的装置和用于确定对象上的预定期望角位置相对于特征定位的角度的测量装置。 第二站装置包括用于感测特征的感测装置,用于从等于该角度的量索引的分度装置,以及用于在重定位的期望位置处标记物体的标记装置。

    Apparatus and method for wind-corrected measurement of steering pull on
a vehicle
    17.
    发明授权
    Apparatus and method for wind-corrected measurement of steering pull on a vehicle 失效
    用于风车校正测量车辆转向拉力的装置和方法

    公开(公告)号:US5309373A

    公开(公告)日:1994-05-03

    申请号:US95153

    申请日:1993-07-19

    CPC classification number: G01M17/02 G01M1/30

    Abstract: Steering pull to which a vehicle is subjected due to tire non-uniformity is measured accurately even in the presence of wind. An anemometer mounted in proximity of and in positionally fixed relation to the vehicle measures the speed and direction of wind apparent to the vehicle. Those measurements are used by a computer to determine a wind correction quantity which is subtracted from the steering pull measured at the steering wheel.

    Abstract translation: 即使在存在风的情况下也能够准确地测量车辆由于轮胎不均匀而受到的转向拉力。 安装在车辆附近和与车辆位置固定的风速计测量车辆的风速和方向。 计算机使用这些测量来确定从在方向盘测量的转向拉力中减去的风修正量。

    Apparatus and method for determining a center and measuring with
reference thereto
    18.
    发明授权
    Apparatus and method for determining a center and measuring with reference thereto 失效
    用于确定中心并参照其测量的装置和方法

    公开(公告)号:US5151870A

    公开(公告)日:1992-09-29

    申请号:US439231

    申请日:1989-11-17

    CPC classification number: G01B7/30 G01B5/201 G01B5/252 G01B7/282

    Abstract: An object is positioned in fixed relation to a measuring axis without regard to centering the object on the axis and at least one series of data samples correlated to the distance between the measuring axis and a series of points located at angularly spaced intervals on at least one surface feature of the object are generated and stored. To determine the center of a first surface feature, the corresponding series of samples is analyzed to identify samples therein corresponding to points lying on a maximum inscribed circle whose center corresponds to that of the surface feature. To measure a second surface feature of an object with reference to the center of a first surface feature thereof, a first signal and a second signal correlated to the distance between the measuring axis and points on the first surface feature and second surface feature, respectively are generated. The center of the first surface feature is then determined to define a vector indicating the positional offset between the measuring axis and that center. The second signal is then adjusted in accordance with that vector to provide a coordinate-corrected signal to be used as a basis for a centered measurement.

    Abstract translation: 物体以与测量轴成固定的关系定位,而不考虑对象在轴上的对中,并且至少一系列的数据样本与测量轴与位于至少一个角度间隔的一系列点之间的距离相关联 生成并存储对象的表面特征。 为了确定第一表面特征的中心,分析相应的一系列样本以识别其中对应于位于其中心对应于表面特征的最大内接圆上的点的样本。 为了相对于其第一表面特征的中心测量物体的第二表面特征,分别与第一表面特征和第二表面特征上的测量轴与点之间的距离相关的第一信号和第二信号是 生成。 然后确定第一表面特征的中心以定义指示测量轴和该中心之间的位置偏移的向量。 然后根据该向量调整第二信号,以提供要用作中心测量的基础的坐标校正信号。

    Apparatus and method for imposing a desired average radial force on a
tire
    19.
    发明授权
    Apparatus and method for imposing a desired average radial force on a tire 失效
    在轮胎上施加期望的平均径向力的装置和方法

    公开(公告)号:US4704900A

    公开(公告)日:1987-11-10

    申请号:US897924

    申请日:1986-08-19

    Applicant: James C. Beebe

    Inventor: James C. Beebe

    CPC classification number: G01M17/022

    Abstract: An apparatus and method for imposing a desired average radial load force on a tire by calculating the current average force between the tire and a loadwheel based on the average radial force and radial distance between the tire and a loadwheel over the last previous complete revolution of the tire, the spring constant of the tire and the current radial distance between the tire and the loadwheel. The calculated average force value is applied as a feedback signal to the loadwheel position controller in order to achieve the desired average radial load. The spring constant of the tire may be determined from the change in force per unit distance as the tire is loaded or programmed as a constant to be applied for testing all tires of a given type.

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