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公开(公告)号：US5944955A
公开(公告)日：1999-08-31
申请号：US007733
申请日：1998-01-15
申请人： David A. Bossen , E. Michael Heaven , John D. Goss
发明人： David A. Bossen , E. Michael Heaven , John D. Goss
CPC分类号： D21G9/0027 , D21F1/06 , Y10S162/06 , Y10S162/11
摘要： Apparatus and process for controlling the basis weight of paper produced in a papermaking machine are provided. In the papermaking process, a major portion of the paper stock flows through a first line that is controlled by a thick stock valve and a minor portion of the stock flow from the stuff box to the headbox is diverted through a second line that is regulated by a second valve (e.g., vernier valve). The thick stock valve is controlled by the dry end basis weight and the second valve responsive to measurements of the basis weight of the wet stock at the wire. The second line and control valve along with the wet end basis weight measurements form a fine control loop with fast response time whereas the first line and control valve that is responsive to dry end basis weight measurements form a course control loop. The dual control loops enable fast and actual basis weight control.
摘要翻译： 提供了用于控制在造纸机中生产的纸的基重的装置和方法。 在造纸过程中，纸张的主要部分流过由厚库存阀控制的第一行，并且从填料盒到流浆箱的库存流的少量部分被转移通过由第二管线调节的第二管线 第二阀（例如游标阀）。 厚的储存阀由干端基重量控制，第二阀响应于在线处的湿料的基重的测量。 第二线和控制阀以及湿端基重测量形成了具有快速响应时间的精细控制回路，而响应于干端基重测量的第一线和控制阀形成了一个过程控制回路。 双重控制回路可实现快速和实际的基重控制。
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公开(公告)号：US06466839B1
公开(公告)日：2002-10-15
申请号：US09525229
申请日：2000-03-14
IPC分类号： G06F766
CPC分类号： D21G9/0027 , Y10S162/10 , Y10S162/11
摘要： A system of providing fast machine direction (MD) and cross direction (CD) basis weight adjustments using a simultaneous multi-point water weight sensor which provides independent MD and CD measurements is described. The water weight sensor is placed under the wire of the sheetmaking machine and provides fast wet end water weight measurements which are converted into predicted dry end basis weight information and used to control operating variables of machine elements in the sheetmaking machine to compensate for high frequency process variations. MD wet end measurements are used to control operating variables of machine elements that influence the MD dry end basis weight and CD wet end measurements are used to control operating variables of machine elements that influence CD dry end basis weight.
摘要翻译： 描述了使用提供独立的MD和CD测量的同时多点水重量传感器来提供快速机器方向（MD）和横向（CD）基重调节的系统。 水重量传感器放置在制片机的线下，并提供快速的湿端水重量测量，将其转换为预测的干端基重信息，并用于控制制片机中机器元件的操作变量，以补偿高频过程 变化。 MD湿端测量用于控制影响MD干端基重的机器元件的操作变量，CD湿端测量用于控制影响CD干端基重的机器元件的操作变量。
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公开(公告)号：US6080278A
公开(公告)日：2000-06-27
申请号：US13867
申请日：1998-01-27
CPC分类号： D21G9/0027 , Y10S162/10 , Y10S162/11
摘要： A system and method of providing fast machine direction (MD) and cross direction (CD) basis weight adjustments using a simultaneous multi-point water weight sensor which provides independent MD and CD measurements is described. The water weight sensor is placed under the wire of the sheetmaking machine and provides fast wet end water weight measurements which are converted into predicted dry end basis weight information and used to control operating variables of machine elements in the sheetmaking machine to compensate for high frequency process variations. MD wet end measurements are used to control operating variables of machine elements that influence the MD dry end basis weight and CD wet end measurements are used to control operating variables of machine elements that influence CD dry end basis weight. The fast control information provided by the non-scanned water weight sensor can be used in a fast control loop which provides feedback information to wetstock source, headbox and forming elements and which can be used with a slower response control loop including a dry end sensor which provides a slower basis weight measurement and which controls system variables to compensate for larger basis weight fluctuations.
摘要翻译： 描述了使用提供独立的MD和CD测量的同时多点水重量传感器来提供快速机器方向（MD）和横向（CD）基重调节的系统和方法。 水重量传感器放置在制片机的线下，并提供快速的湿端水重量测量，将其转换为预测的干端基重信息，并用于控制制片机中的机器元件的操作变量，以补偿高频过程 变化。 MD湿端测量用于控制影响MD干端基重的机器元件的操作变量，CD湿端测量用于控制影响CD干端基重的机器元件的操作变量。 由非扫描水重量传感器提供的快速控制信息可用于快速控制回路，其提供反馈信息到湿源，流浆箱和成形元件，并且可以与慢速响应控制回路一起使用，该响应控制回路包括干端传感器 提供较慢的基重测量，并且其控制系统变量以补偿较大的基重量波动。
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4.发明授权Method and apparatus for measuring and controlling the surface characteristics of sheet materials such as paper 失效用于测量和控制纸张材料如纸张的表面特性的方法和装置
公开(公告)号：US5654799A
公开(公告)日：1997-08-05
申请号：US435995
申请日：1995-05-05
申请人： Lee M. Chase , John D. Goss
发明人： Lee M. Chase , John D. Goss
CPC分类号： G01N21/86
摘要： An on-line laser triangulation position sensing system provides measurements of the surface features of a moving sheet such as paper. The measurements are correlatable with measurements made with standard laboratory surface smoothness testers and provide predictions of the printability of paper during its fabrication. The sensing system includes a segmented balance detector having a high frequency response. The sensing system further includes signal processing circuitry comprising a plurality of channels, each channel including a filter. The various filters have different cutoff frequencies for passing different frequency spectra representing ranges of surface feature scale sizes. The cutoff frequency of each filter is varied in response to variations in sheet speed. The sheet sensing system further includes a sheet stabilizer to minimize flutter in the measurement region and a standardizing member permitting performance verification of the sensor system at at least one scale size spectrum. The sensing system may also be provided with a sheet compressor to compress the sheet in the measurement region so as to simulate the pressures applied to sheet samples by laboratory air leak smoothness testers. The output of the position sensing system may be used in conjunction with various kinds of papermaking machines to control one or more of the many papermaking process parameters that determine the smoothness or texture of the final product. The sensing system can be used to measure tissue crepe and such measurement can be utilized to control various crepe-determining stages in a tissue making machine and to monitor the condition of the creping or doctor blade in such a machine.
摘要翻译： 在线激光三角测量位置感测系统提供诸如纸张的移动片材的表面特征的测量。 测量值与使用标准实验室表面平滑度测试仪进行的测量值相关，并提供纸张在其制造过程中的可印刷性的预测。 感测系统包括具有高频响应的分段平衡检测器。 感测系统还包括包括多个通道的信号处理电路，每个通道包括滤波器。 各种滤光器具有不同的截止频率，用于通过表示特征尺度尺寸范围的不同频谱。 每个过滤器的截止频率响应于纸张速度的变化而变化。 片材感测系统还包括片材稳定器，以最小化测量区域中的颤动;以及标准化构件，允许在至少一个尺度尺度谱上对传感器系统进行性能验证。 感测系统还可以设置有片材压缩机，以压缩测量区域中的片材，以便模拟通过实验室空气泄漏平滑度测试器施加到片材样品的压力。 位置检测系统的输出可以与各种造纸机一起使用，以控制确定最终产品的平滑度或纹理的许多造纸工艺参数中的一个或多个。 感测系统可用于测量组织绉纱，并且可以利用这种测量来控制组织制作机器中的各种绉纱确定阶段，并监测这种机器中起皱或刮刀的状况。
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公开(公告)号：US5432353A
公开(公告)日：1995-07-11
申请号：US162088
申请日：1993-12-10
CPC分类号： G21F5/02
摘要： A nuclear gauge (7) for making measurements of traveling webs (11) in continuous sheet-making processes includes an enclosure (20), an encapsulated nuclear source (28), and a wheel-like member (10) mounted in the enclosure means for carrying the encapsulated nuclear source between two angularly-displaced positions. The first of the angularly-displaced positions is the position whereat the encapsulated nuclear source makes measurements of a web that travels past the gauge, and the second position is the location whereat the encapsulated nuclear source faces a sidewall of the enclosure means at a location remote from the first position. The nuclear gauge also has an aperture (16) which is formed through the enclosure for providing a window through which the encapsuled nuclear source, when located in the first position, can emit radiation onto a web that travels past the window.
摘要翻译： PCT No.PCT / US93 / 02621 Sec。 371日期：1993年12月10日 102（e）日期1993年12月10日PCT 1993年3月22日PCT公布。 WO93 / 19473 PCT出版物 日期：1993年9月30日。在连续制版过程中用于测量行进幅材（11）的核子计（7）包括外壳（20），封装核源（28）和轮状构件 10），其安装在外壳装置中，用于在两个角位移位置之间承载封装的核源。 角位移位置中的第一个位置是封装的核源测量行进超过量规的幅材的位置，第二位置是封装的核源面向外壳的侧壁的位置，位于远程位置 从第一个位置。 核计量器还具有通过外壳形成的孔口（16），用于提供窗口，当位于第一位置时，封装的核源可以通过该窗口将辐射发射到穿过窗户的腹板上。
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6.发明授权Device and method for calibrating a non-destructive sheet strength measuring system 失效用于校准非破坏性片材强度测量系统的装置和方法
公开(公告)号：US4936140A
公开(公告)日：1990-06-26
申请号：US146930
申请日：1988-01-22
CPC分类号： G01N3/08 , G01N3/62 , G01N2203/021 , G01N2203/0278 , G01N2203/0282 , G01N2203/0623
摘要： A running blade is adapted to move at the same speed as a continuously running sheet and to generate a burst perforation through the sheet. The force exerted by the blade against the sheet is measured and used to calibrate a non-destructive sheet strength sensor.
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7.发明授权Device and method for calibrating a non-destructive sheet strength measuring system 失效用于校准非破坏性片材强度测量系统的装置和方法
公开(公告)号：US5111688A
公开(公告)日：1992-05-12
申请号：US673856
申请日：1991-03-21
CPC分类号： G01N3/08 , G01N3/62 , G01N2203/021 , G01N2203/0282 , G01N2203/0623 , Y10T83/852
摘要： A running blade is adapted to move at the same speed as a continuously running sheet and to generate a burst perforation through the sheet. The force exerted by the blade against the sheet is measured and used to calibrate a non-destructive sheet strength sensor.
摘要翻译： 运行刀片适于以与连续运行的片材相同的速度移动并且通过片材产生突发穿孔。 测量刀片抵抗片材所施加的力并用于校准非破坏性片材强度传感器。
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公开(公告)号：US5014288A
公开(公告)日：1991-05-07
申请号：US341639
申请日：1989-04-20
申请人： Lee M. Chase , John D. Goss
发明人： Lee M. Chase , John D. Goss
摘要： An x-ray sensor for determining the amount and composition of a multi-component material is disclosed. The sensor is particularly useful for determining the amount and chemical composition of a coating spread on a continuously moving paper sheet or filler material mixed into such a sheet.
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9.发明授权公开(公告)号：US06281689B1
公开(公告)日：2001-08-28
申请号：US09289066
申请日：1999-04-12
申请人： Lee Chase , John D. Goss , Claud Hagart-Alexander , Martin G. Clarke , Graham V. Walford , Raymond Yu
发明人： Lee Chase , John D. Goss , Claud Hagart-Alexander , Martin G. Clarke , Graham V. Walford , Raymond Yu
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。
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公开(公告)号：US6149770A
公开(公告)日：2000-11-21
申请号：US60167
申请日：1998-04-14
申请人： Hung-Tzaw Hu , Claud Hagart-Alexander , Lee Chase , John D. Goss , David Watson
发明人： Hung-Tzaw Hu , Claud Hagart-Alexander , Lee Chase , John D. Goss , David Watson
CPC分类号： D21G9/0027 , Y10S162/11
摘要： A system and method of providing on-line turbulence measurements in a sheetmaking machine and using these measurements to perform on-line adjustments to turbulence-inducing and adjusting elements in the sheetmaking machine to optimize final sheet product quality. Turbulence measurements are obtained using water weight sensors in the wet-end of the sheetmaking machine and specifically under wire water weight measurements. Water weight readings are correlated to turbulence intensity levels by correlating ranges of water weights to intensity level intervals. A turbulence processing sensor sorts accumulated water weight measurement readings into intensity level intervals to obtain turbulence measurements or a turbulence profile. The turbulence measurements or profile is provided to a machine element controller which uses the measured turbulence information and target turbulence information to generate control signals. The water weight sensors can obtain independent machine direction (MD) and cross direction (CD) water weight measurements and consequently independent turbulence measurements can be determined so that turbulence can be controlled in both directions. Machine elements are controlled so that turbulence remains uniform across the CD and so that the MD turbulence profile is optimized to resemble a target profile.
摘要翻译： 在制片机中提供在线湍流测量的系统和方法，并使用这些测量来对片材制造机器中的湍流诱导和调节元件进行在线调整，以优化最终的片材产品质量。 湍流测量是使用水平重量传感器在制片机的湿端，特别是在线水重量测量下获得的。 水重量读数与湍流强度水平相关，通过将水重量与强度水平间隔相关联。 湍流处理传感器将累积的水分重量测量读数分类为强度水平间隔以获得湍流测量或湍流分布。 将湍流测量或轮廓提供给使用测量的湍流信息和目标湍流信息来产生控制信号的机器元件控制器。 水重量传感器可以获得独立的机器方向（MD）和横向（CD）水重量测量值，因此可以确定独立的湍流测量，从而可以在两个方向上控制湍流。 控制机器元件使得湍流在CD上保持均匀，使得MD湍流分布被优化以类似于目标轮廓。
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