Method and apparatus for testing of sheet material

    公开(公告)号:US06202482B1

    公开(公告)日:2001-03-20

    申请号:US09316677

    申请日:1999-05-21

    Abstract: An apparatus for testing of electrical, mechanical, physical and/or chemical properties of material in sheet form includes a cassette for holding of sheets and sensors rigidly mounted relative to the cassette. The sensors may be mounted adjacent a test location exterior to the cassette. The cassette and the sensors may be so configured and positioned that a suitable end effector may move sheets of material between storage locations in the cassette and test locations adjacent the sensors. A method for testing sheet material includes the steps of placing the sheet material in a cassette, and conducting tests employing one or more sensors rigidly mounted with respect to the cassette. The method may include employing an end effector to remove the sheet from the cassette, to position the sheet stepwise in several positions relative to the sensors, and to replace the sheet in the cassette upon completion of testing. Materials to be tested include flat panels for computer screens and other applications and semiconductor wafers.

    Force sensor
    32.
    发明授权
    Force sensor 失效
    力传感器

    公开(公告)号:US06647810B1

    公开(公告)日:2003-11-18

    申请号:US09403365

    申请日:1999-10-20

    CPC classification number: G01L1/20

    Abstract: The force sensor according to the invention has a support, a first pressure-sensitive layer, arranged on a first side of the support and connected to a first conductor track, a first force-introduction part with a first contact area which is bounded by edges and is connected to the first pressure-sensitive layer in a first bearing region. A second pressure-sensitive layer, connected to a second conductor track, is arranged on a second side of the support, and a second force-introduction part with a second contact surface bounded by edges is connected to the second pressure-sensitive layer in a second bearing region.

    Abstract translation: 根据本发明的力传感器具有支撑件,第一压敏层,其布置在支撑件的第一侧上并连接到第一导体轨道,第一力导入部分具有由边缘限定的第一接触区域 并且在第一轴承区域中连接到第一压敏层。 连接到第二导体轨道的第二压敏层被布置在支撑件的第二侧上,并且具有由边缘限定的第二接触表面的第二力导入部分连接到第二压敏层 第二轴承区域。

    Substrate bending stiffness measurement method and system
    33.
    发明授权
    Substrate bending stiffness measurement method and system 失效
    基体弯曲刚度测量方法及系统

    公开(公告)号:US06581456B1

    公开(公告)日:2003-06-24

    申请号:US10041047

    申请日:2002-01-07

    Inventor: Robert A. Clark

    Abstract: A method and apparatus for measuring substrate bending stiffness and thereby basis weight on a real time basis. Provided is a corrugator having a plurality of parallel ribs, with one or more sheets of the substrate provided below the corrugator wherein a predetermined gap exists between a topmost sheet of the sheets and the corrugator. A vacuum is applied between the corrugator and the topmost sheet, wherein the vacuum is sufficiently large to raise the topmost sheet, thereby deflecting and bending it into a profile corresponding to the arrangement and size of the corrugator ribs and bending stiffness of the substrate. One or more sensors are provided for measuring the deflection of the topmost sheet. The vacuum, an air knife output and/or a fluffer output are then adjusted according to predetermined rules and the measured deflection.

    Abstract translation: 一种实时测量基板弯曲刚度,从而测量基重的方法和装置。 提供了一种波纹机,其具有多个平行的肋,其中一个或多个衬底设置在波纹机的下方,其中在最上面的片材片和波纹板之间存在预定的间隙。 在瓦楞纸机和最上面的纸张之间施加真空,其中真空足够大以提升最上面的纸张,从而偏转并将其弯曲成对应于波纹板肋的布置和尺寸以及基板的弯曲刚度的轮廓。 提供一个或多个传感器用于测量最上面的片材的挠曲。 然后根据预定的规则和测量的偏差来调节真空,气刀输出和/或绒毛输出。

    Fatigue machine for testing cord or filament
    34.
    发明授权
    Fatigue machine for testing cord or filament 失效
    用于测试绳索或长丝的疲劳机

    公开(公告)号:US06550323B1

    公开(公告)日:2003-04-22

    申请号:US09513630

    申请日:2000-02-28

    Abstract: An apparatus for testing the fatigue of a sample of cord or filament (12) by bending it over a fixed surface (19). The apparatus comprises a tensioner (14), a fixed bending surface (19) and a driving mechanism (24), whereby the driving mechanism (24) causes a non-twisting bending of cord or filament (12) over bending surface (19) while tensioner (14) maintains a constant tension on cord or filament (12). In a method of the invention, a cord or filament (12) is attached to a tensioner (14), the cord or filament (12) is mounted on fixed bending surface (19) and attached to non-stationary roller (20), and driving mechanism (24) is activated to cause a back and forth movement of roller (20), thereby causing filament or cord (12) to bend back and forth over fixed bending surface (19) until it breaks. This process is repeated using different stress increase rates on the cord or filament (12) by adjusting the tensioner (14) and a linear regression equation is used to determine the fatigue stress limit of the material.

    Abstract translation: 一种用于通过将绳索或细丝(12)的样品弯曲在固定表面(19)上来测试疲劳的装置。 该装置包括张紧器(14),固定的弯曲表面(19)和驱动机构(24),由此驱动机构(24)引起绳索或细丝(12)在弯曲表面(19)上的非扭曲弯曲, 而张紧器(14)在绳索或细丝(12)上保持恒定的张力。 在本发明的方法中,绳索或细丝(12)附接到张紧器(14)上,绳索或细丝(12)安装在固定的弯曲表面(19)上,并连接到非固定的辊(20)上, 并且驱动机构(24)被启动以引起辊(20)的来回移动,从而使细丝或绳索(12)在固定的弯曲表面(19)上来回弯曲直到其断裂。 通过调节张紧器(14),使用线或丝(12)上的不同应力增加率重复该过程,并且使用线性回归方程来确定材料的疲劳应力极限。

    Method and arrangement for measuring load of hoisting apparatus

    公开(公告)号:US06543300B2

    公开(公告)日:2003-04-08

    申请号:US09940514

    申请日:2001-08-29

    Applicant: Ari Kiviniitty

    Inventor: Ari Kiviniitty

    CPC classification number: B66C23/905 B66D1/58

    Abstract: A method and an apparatus for measuring a load of a hoisting apparatus, where electricity is used as the driving force and a squirrel cage motor as the hoisting motor for moving a load attached to a hoisting member of the hoisting apparatus substantially in the vertical direction. The method and arrangement are employed to determine air gap torque of the hoisting motor, which describes the load of the hoisting apparatus, utilizing magnetization flux of the hoisting motor determined on the basis of the current, supply voltage and stator winding resistance of the hoisting motor. The value of the air gap torque is compared with an air gap torque curve determined for the hoisting apparatus at known reference loads to determine the load that corresponds to the air gap torque in question.

    Measuring system
    36.
    发明授权
    Measuring system 有权
    测量系统

    公开(公告)号:US06523401B2

    公开(公告)日:2003-02-25

    申请号:US09816390

    申请日:2001-03-26

    CPC classification number: D21G9/0009 D21F5/04

    Abstract: Measuring system and process for determining properties of a running fibrous material web in a drying section of a machine producing the fibrous material web. The system includes at least one upper roll and at least one lower roll. The fibrous material web is arranged to partially wrap the at least one upper roll and the at least one lower roll and to run between these rolls at an angle between about 0 and 45° to a vertical. A sensor guide is arranged crosswise to a web run direction, and at least one sensor is arranged to traverse the sensor guide in the web run direction in a region of the at least one lower roll. The sensor is structured and arranged for determining a web parameter, and is oriented to form a maximum angle of about 60° to a horizontal through an axis of the lower roll.

    Abstract translation: 用于确定在生产纤维材料网的机器的干燥部分中运行的纤维材料纤维网的性质的测量系统和方法。 该系统包括至少一个上辊和至少一个下辊。 纤维材料纤维网布置成部分地包裹至少一个上辊和至少一个下辊,并且在这些辊之间以垂直方向以大约0°和45°之间的角度运行。 传感器引导件横向于幅材运行方向布置,并且至少一个传感器布置成在所述至少一个下辊的区域中沿着卷筒纸运行方向穿过传感器引导件。 该传感器被构造和布置成用于确定卷材参数,并且被定向成通过下辊的轴线形成与水平方向大约60°的最大角度。

    Webbing tension sensor
    37.
    发明授权

    公开(公告)号:US06508114B2

    公开(公告)日:2003-01-21

    申请号:US09725390

    申请日:2000-11-29

    Applicant: Richard Lawson

    Inventor: Richard Lawson

    CPC classification number: G01L5/101

    Abstract: A webbing tension sensing unit which includes a base and a cover and an elastically biasing element mounted within the base and cover. The webbing of, for example, a seat belt is operably connected to a sensor also housed within the base and cover. The sensor detects movement in relation to the elastically biasing element and generates electrical signals in proportion to the movement as a function of the tension in the webbing. The signals are used for analysis as part of a system to determine if devices such as an air bag or warning light should be triggered.

    Method of manufacturing optical fiber
    38.
    发明授权
    Method of manufacturing optical fiber 失效
    制造光纤的方法

    公开(公告)号:US06508113B1

    公开(公告)日:2003-01-21

    申请号:US09348318

    申请日:1999-07-07

    CPC classification number: B65H65/00 B65H54/86 B65H2701/32 C03B37/032

    Abstract: A take up apparatus 10 for drawn optical fiber comprises: a take-up stand 22 supporting a first, storage bobbin 12 about a first axis 20; a motor 32 for rotating this first bobbin about that axis; a supporting means 36 supporting a second, sampler bobbin 14 about a second, different axis 34; a second motor 38 for rotating this second bobbin about the second axis; and means for controlling the relative rates of rotation provided by the motors. In use drawn fiber is guided about the first bobbin to the second bobbin and the bobbins are rotated to wind the fiber about the first bobbin and onto the second bobbin during initial drawing of the fiber. Subsequently the fiber between the bobbins is cut and the drawn fiber is wound onto the first bobbin.

    Abstract translation: 用于拉制光纤的卷绕装置10包括:卷绕架22,其支撑围绕第一轴线20的第一存储卷轴12; 用于使该第一线轴围绕该轴旋转的马达32; 支撑装置36,其支撑围绕第二不同轴线34的第二采样器筒管14; 用于使第二绕线筒围绕第二轴旋转的第二马达38; 以及用于控制由电动机提供的相对转速的装置。 在使用时,将拉丝纤维围绕第一筒管引导到第二筒管,并且在初始拉伸纤维期间,筒管旋转以将纤维围绕第一筒管卷绕到第二筒管上。 随后,切断线轴之间的纤维,将拉伸的纤维卷绕到第一线轴上。

    Measuring device for thread-like test samples
    39.
    发明授权
    Measuring device for thread-like test samples 失效
    线状测试样品测量装置

    公开(公告)号:US06499345B1

    公开(公告)日:2002-12-31

    申请号:US09744915

    申请日:2001-03-22

    CPC classification number: B65H63/065 B65H2701/31

    Abstract: The invention relates to a measuring device for thread-like test samples (3), comprising a measuring slit (2) exhibiting measuring areas (6, 7) for measuring characteristics of a test sample which moves longitudinally, said measuring areas being associated to a measuring device. A coating (8) made of an abrasion-resistant material is applied over the whole measuring slit and its measuring areas (6, 7) in order to define more freely the dimensions of said measuring slit and especially to obtain a narrower measuring slit.

    Abstract translation: 本发明涉及一种用于螺纹状测试样品(3)的测量装置,包括测量狭缝(2),其具有用于测量纵向移动的测试样品的特性的测量区域(6,7),所述测量区域与 测量工具。 在整个测量狭缝及其测量区域(6,7)上施加由耐磨材料制成的涂层(8),以便更自由地限定所述测量狭缝的尺寸,特别是获得更窄的测量狭缝。

    Method and apparatus for measuring the tension of a moving web
    40.
    发明授权
    Method and apparatus for measuring the tension of a moving web 失效
    用于测量移动网的张力的方法和装置

    公开(公告)号:US06481275B1

    公开(公告)日:2002-11-19

    申请号:US09720706

    申请日:2000-12-29

    CPC classification number: G01L5/08

    Abstract: The invention relates to a method and apparatus for measuring the tension of a moving web. In the invention, a measuring beam (2)is curved so that a web moving over or under the measuring beam (2) forms an air cushion (3) of the air it transports between the measuring beam (2) and the web (1). The web (1) causes a force effect transmitted by the air cushion on the measuring beam (2). The tension of the web (1) is measured by measuring the force caused by the web (1) and transmitted by the measuring beam (2).

    Abstract translation: 本发明涉及一种用于测量移动幅材张力的方法和装置。 在本发明中,测量光束(2)是弯曲的,使得在测量光束(2)上或下方移动的幅材形成其在测量光束(2)和幅材(1)之间传输的空气的气垫(3) )。 腹板(1)引起气垫在测量梁(2)上传递的力作用。 通过测量由幅材(1)引起的并由测量光束(2)传播的力来测量幅材(1)的张力。

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