Method for determining the bending stiffness of a moving sheet
    12.
    发明授权
    Method for determining the bending stiffness of a moving sheet 失效
    确定移动片的弯曲刚度的方法

    公开(公告)号:US5171403A

    公开(公告)日:1992-12-15

    申请号:US718199

    申请日:1991-06-20

    IPC分类号: D21G9/00

    CPC分类号: D21G9/0009

    摘要: A method for determining bending stiffness of a moving sheet using an on-line sheet bending stiffness sensor. The sensor continuously bends the sheet as it is being manufactured and, based upon the force required to bend the sheet, the amount of bending and the tension applied to the sheet, the sensor determines a parameter indicative of sheet bending stiffness. The resulting parameter can be correlated with conventional destructive laboratory tests of sheet bending stiffness.

    摘要翻译: 一种使用在线片材弯曲刚度传感器确定移动片材的弯曲刚度的方法。 传感器在制造时连续地弯曲片材,并且基于弯曲片材所需的力,施加到片材上的弯曲量和张力,传感器确定表示片材弯曲刚度的参数。 所得到的参数可以与常规的板材弯曲刚度的破坏性实验室测试相关联。

    Means of correcting a measurement of a property of a material with a sensor that is affected by a second property of the material
    13.
    发明授权
    Means of correcting a measurement of a property of a material with a sensor that is affected by a second property of the material 有权
    用受材料的第二特性影响的传感器校正材料性能的测量的方法

    公开(公告)号:US06483325B1

    公开(公告)日:2002-11-19

    申请号:US09594593

    申请日:2000-06-15

    IPC分类号: G01N2702

    CPC分类号: G01N33/343 D21G9/0009

    摘要: A sensor apparatus and electrode configuration within the sensor apparatus for measuring electrical characteristics of an aqueous fibrous composition. The electrode configuration includes an elongated ground electrode and at least one segmented electrode to form an array of measurement electrode cells. The electrode configuration further includes an array of reference electrode cells formed by a plurality of reference electrodes built into the array of measurement electrode cells. The measurement electrode cells and reference electrode cells have a different sensitivity to water weight of the aqueous fibrous composition and the same sensitivity to conductivity of the aqueous fibrous composition. The measurement apparatus obtains simultaneous resistive measurements from both measurement and reference cells and determines the ratio of the measurements such that the affects from conductivity is canceled out of the measurement ratio. The determined measurement ratio is used to obtain a measurement of the water weight of the aqueous fibrous composition by using previously determined characterization data of the water weight vs. a range of measurement ratios.

    摘要翻译: 用于测量水性纤维组合物的电特性的传感器装置内的传感器装置和电极结构。 电极配置包括细长接地电极和至少一个分段电极,以形成测量电极单元阵列。 电极结构还包括由内置在测量电极单元阵列中的多个参考电极形成的参考电极单元的阵列。 测量电极单元和参考电极单元对水性纤维组合物的水重量具有不同的灵敏度,并且与水性纤维组合物的导电性相同。 测量装置从测量和参考单元获得同时的电阻测量,并且确定测量值的比例,使得在测量比之外抵消来自电导率的影响。 使用确定的测量比率通过使用预先确定的水重量的特征数据与测量比的范围来获得水性纤维组合物的水重量的测量。

    Water weight sensor array imbedded in a sheetmaking machine roll
    14.
    发明授权
    Water weight sensor array imbedded in a sheetmaking machine roll 失效
    水重量传感器阵列嵌入片材机辊中

    公开(公告)号:US06341522B1

    公开(公告)日:2002-01-29

    申请号:US09056932

    申请日:1998-04-06

    IPC分类号: G01L504

    摘要: A sensor imbedded roller for detecting changes in properties of a material and a measurement apparatus including a fixed impedance element coupled in series with a variable impedance sensor imbedded roller between an input signal and a reference potential (e.g. ground) is described. The sensor, which includes an electrode configuration, is imbedded into a roller such that when it rotates it comes in contact with the material being measured and its impedance varies. The variable impedance of the sensor relates to changes in property of the material being sensed which can then be related to changes in other physical characteristics of the material such as weight, chemical composition, and temperature. Sensor imbedded rollers can be placed in a sheetmaking machine to measure the pre-formed and post-formed paper product.

    摘要翻译: 描述了一种用于检测材料性质变化的传感器嵌入辊和包括固定阻抗元件的测量装置,该固定阻抗元件与输入信号和参考电位(例如接地)之间的嵌入辊可变阻抗传感器串联耦合。 包括电极构造的传感器被嵌入到辊中,使得当其旋转时,它与被测量的材料接触并且其阻抗变化。 传感器的可变阻抗涉及被感测材料的性能变化,其随后可能与材料的其它物理特性的变化(例如重量,化学成分和温度)有关。 传感器嵌入辊可以放置在制版机中以测量预成型和成型后的纸制品。

    Sensor, system and method for determining Z-directional properties of a
sheet
    15.
    发明授权
    Sensor, system and method for determining Z-directional properties of a sheet 失效
    用于确定片材Z方向属性的传感器,系统和方法

    公开(公告)号:US5297062A

    公开(公告)日:1994-03-22

    申请号:US47171

    申请日:1993-04-12

    摘要: A sensor, system and method for determining the various Z-directional properties of a sheet by measuring the caliper of a moving sheet of material at a plurality of pressures. The invention employs a caliper gauge and a set of pressure transducers that can measure and send signals indicative of the caliper as well as pressures exerted on the sheet. The signals are then digitized by an analog-to-digital converter and sent to a computer. The computer uses the compressibility data to construct a compression stress-strain diagram where the slope of the curve in the linear region of the curve is defined as the compression modulus of elasticity which can be empirically correlated to the tensile modulus of elasticity for various grades of paper. The tensile modulus of elasticity can be then used in various formulas to determine other Z-directional physical properties of the sheet, such as tensile strength, extensional stiffness and Scott bonding.

    摘要翻译: 一种用于通过在多个压力下测量移动的材料片的厚度来确定片材的各种Z方向性质的传感器,系统和方法。 本发明采用厚度计和一组压力传感器,其可以测量和发送指示卡尺的信号以及施加在片材上的压力。 然后,信号由模数转换器数字化并发送到计算机。 计算机使用可压缩性数据构建压缩应力 - 应变图,其中曲线的线性区域中的曲线的斜率被定义为可以与各种等级的曲线的拉伸弹性模量经验相关的弹性模量 纸。 然后可以将拉伸弹性模量用于各种配方中以确定片材的其它Z方向物理性质,例如拉伸强度,拉伸刚度和斯科特粘结。

    Fiber orientation sensor
    16.
    发明授权
    Fiber orientation sensor 失效
    光纤定向传感器

    公开(公告)号:US5138878A

    公开(公告)日:1992-08-18

    申请号:US635291

    申请日:1990-12-28

    摘要: A sensor for detecting directional variations in a physical characteristic of a moving sheet of material is disclosed. The sensor has a support for supporting the moving sheet. The support defines an open region into which the moving sheet is deflected by a deflector. Detectors coupled to the support detect and produce signals indicative of the force exerted on the support by the deflected sheet in at least three different directions. Each signal is processed to determine a physical characteristic, such as extensional stiffness, of the sheet of material in each of the three directions. The directional variations of the physical characteristic may be used to determine the fiber orientation angle and the degree of anisotropism of the sheet.

    摘要翻译: 公开了一种用于检测移动的材料材料的物理特性的方向变化的传感器。 该传感器具有用于支撑移动片材的支撑件。 支撑件限定开放区域,移动片材通过偏转器偏转到该开口区域中。 耦合到支撑件的检测器检测并产生指示由偏转的片材在至少三个不同方向上施加在支撑件上的力的信号。 处理每个信号以确定在三个方向中的每一个中的材料片材的物理特性,例如拉伸刚度。 可以使用物理特性的方向变化来确定片材的纤维取向角度和各向异性。

    Fiber orientation sensor
    17.
    发明授权
    Fiber orientation sensor 失效
    光纤定向传感器

    公开(公告)号:US5101661A

    公开(公告)日:1992-04-07

    申请号:US635305

    申请日:1990-12-28

    IPC分类号: G01L5/10 G01N33/34

    摘要: A sensor for detecting directional variations in a physical characteristic of a moving sheet of material is disclosed. The sensor has a support for supporting the moving sheet. The support defines an open region into which the moving sheet is deflected by a deflector. The support is rotatable to allow detectors coupled to the support to detect and produce signals indicative of the force exerted on the support by the deflected sheet in a number of different directions. Each signal is processed to determine a physical characteristic, such as extensional stiffness, of the sheet of material in each direction. The directional variations of the physical characteristic may be used to determine the fiber orientation angle and the degree of anisotropism of the sheet.

    摘要翻译: 公开了一种用于检测移动的材料材料的物理特性的方向变化的传感器。 该传感器具有用于支撑移动片材的支撑件。 支撑件限定开放区域,移动片材通过偏转器偏转到该开口区域中。 支撑件是可旋转的,以允许耦合到支撑件的检测器检测并产生指示在多个不同方向上由偏转的片材施加在支撑件上的力的信号。 处理每个信号以确定在每个方向上的材料片材的物理特性,例如拉伸刚度。 可以使用物理特性的方向变化来确定片材的纤维取向角度和各向异性。

    Wet end control for papermaking machine
    19.
    发明授权
    Wet end control for papermaking machine 失效
    造纸机湿端控制

    公开(公告)号:US6086716A

    公开(公告)日:2000-07-11

    申请号:US75762

    申请日:1998-05-11

    摘要: System and method for producing paper are provided. The system controls formation of wet stock comprising fibers on a moving water permeable wire of a de-watering machine that has means for supplying the amount of pulp from at least one source, means for adding an amount of non-fibrous additives to the wet stock, a refiner that is subject to a variable load and a headbox having at least one slice, wherein each slice has an aperture through which wet stock is discharged onto the wire. The system includes: (a) at least two water weight sensors that are positioned adjacent to the wire wherein the at least two sensors are positioned at different locations in the direction of movement of the wire and upstream from a dry line which develops during operation of the machine and the sensors generate signals indicative of a water weight profile made up of a multiplicity of water weight measurements; and (b) means for adjusting at least one of the motor load controller, the amount of non-fibrous additives added to the wet stock or amount of pulp supplied from the at least one source to cause the water weight profile to match a preselected or optimal water weight profile.

    摘要翻译: 提供纸的生产方法和制造方法。 该系统控制在脱水机的运动的水可渗透的丝线上形成含有纤维的湿料,其具有用于从至少一个来源供应量的装置的装置,用于将一定量的非纤维添加剂添加到湿料中 ,经受可变负载的磨浆机和具有至少一个切片的流浆箱,其中每个切片具有通过该孔将湿料排放到丝线上的孔。 所述系统包括:(a)至少两个水重量传感器,其位于与所述导线相邻的位置,其中所述至少两个传感器位于所述导线的移动方向上的不同位置, 机器和传感器产生指示由多个水重量测量组成的水重分布的信号; 和(b)用于调节马达负载控制器,添加到湿料中的非纤维添加剂的量或从至少一个来源供应的纸浆量中的至少一个的装置,以使水重量分布匹配预选的或 最佳水重分布。

    Weight measurement and measurement standardization sensor
    20.
    发明授权
    Weight measurement and measurement standardization sensor 失效
    重量测量和测量标准化传感器

    公开(公告)号:US6006602A

    公开(公告)日:1999-12-28

    申请号:US70165

    申请日:1998-04-30

    IPC分类号: G01G17/02 G01L5/04

    CPC分类号: G01G17/02

    摘要: An apparatus and method for obtaining fiber weight measurements in the wet end of a sheetmaking system and for verifying fiber weight measurements taken in the wet end of a sheetmaking system which includes a water weight sensor positioned beneath the wire in the wet end of the sheetmaking system for obtaining water weight measurements and load cells residing beneath the water weight sensor for weighing the wet end sensor and the wire with wetstock (total weight) and without wetstock (tare weight). In one embodiment, the water weight measurement and the tare weight measurement are subtracted from the total weight to obtain the fiber weight in the wetstock. In another embodiment, the water weight measurement is used to obtain an predicted fiber weight measurement and the determined fiber weight is used to verify the predicted fiber weight measurement and the accuracy of the water weight measurement device.

    摘要翻译: 一种用于在片材制造系统的湿端中获得纤维重量测量值的装置和方法,并用于验证在片材制造系统的湿端中进行的纤维重量测量,该测量系统包括定位在片材制造系统的湿端中的线下方的水重量传感器 用于获得水重量测量值和位于水重量传感器下方的称重传感器,用于称重湿端传感器和具有湿盘(总重量)和无湿料(皮重)的电线。 在一个实施例中,从总重量中减去水重量测量和皮重测量,以获得湿料中的纤维重量。 在另一个实施例中,使用水重量测量来获得预测的纤维重量测量值,并且使用确定的纤维重量来验证预测的纤维重量测量值和水重量测量装置的精度。