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公开(公告)号：US5276327A
公开(公告)日：1994-01-04
申请号：US803967
申请日：1991-12-09
CPC分类号： D21F7/003 , G01N21/3559 , G01N21/86 , G01N2021/8663
摘要： A sensor and method is provided for measuring one or more select components of a material. In one embodiment, a method measures the components by emitting electromagnetic radiation at the material and detecting the intensity of the emerging radiation at separate locations from the source. In another embodiment, a sensor provides a radiation source for emitting radiation at a sheet, a plurality of detecting means, offset substantially the same from the source, for detecting radiation after interaction with the sheet and first and second reflectors for directing the radiation so that the radiation makes multiple interactions with the sheet when moving from the source to the detecting means. The invention can accurately measure the select components (e.g., moisture) of different grades of paper by eliminating the effects of the scattering power and determining absorption power at each band of the spectrum considered necessary for a particular measurement.
摘要翻译： 提供了用于测量材料的一个或多个选择部件的传感器和方法。 在一个实施例中，一种方法通过在材料处发射电磁辐射并且检测来自源的分开位置处的出射辐射的强度来测量部件。 在另一个实施例中，传感器提供用于在片材上发射辐射的辐射源，多个检测装置，与源极基本上相同，用于在与片材相互作用之后检测辐射，以及用于引导辐射的第一和第二反射器， 当从源移动到检测装置时，辐射与片材进行多次相互作用。 本发明可以通过消除散射功率的影响并且确定在特定测量中认为必要的频谱的每个频带处，来确定不同等级的纸张的选择分量（例如湿度）。
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2.发明授权Sensor and method for measurment of select components of a material based on detection of radiation after interaction with the material 失效用于根据与材料相互作用后的辐射检测来测量材料的选择部件的传感器和方法
公开(公告)号：US5235192A
公开(公告)日：1993-08-10
申请号：US804771
申请日：1991-12-09
CPC分类号： G01N21/86 , D21F7/003 , G01N21/3559 , G01N2021/8663
摘要： A sensor and method is provided for measuring one or more select components of a material. In one embodiment, a method measures the components by emitting electromagnetic radiation at the material and detecting the intensity of the emerging radiation at separate locations from the source. In another embodiment, a sensor provides a radiation source for emitting radiation at a sheet, a plurality of detecting means, wherein at least one detecting means is offset from the source, for detecting radiation after interaction with the sheet and first and second reflectors for directing the radiation so that the radiation makes multiple interactions with the sheet when moving from the source to the detecting means. The invention can accurately measure the select components (e.g., moisture) of different grades of paper by eliminating the effects of the scattering power and determining absorption power at each band of the spectrum considered necessary for a particular measurement.
摘要翻译： 提供了用于测量材料的一个或多个选择部件的传感器和方法。 在一个实施例中，一种方法通过在材料处发射电磁辐射并且检测来自源的分开位置处的出射辐射的强度来测量部件。 在另一个实施例中，传感器提供用于在片材上发射辐射的辐射源，多个检测装置，其中至少一个检测装置偏离源，用于在与片材相互作用之后检测辐射，并且第一和第二反射器用于引导 所述辐射使得当从所述源移动到所述检测装置时，所述辐射与所述片材发生多次相互作用。 本发明可以通过消除散射功率的影响并且确定在特定测量中认为必要的频谱的每个频带处，来确定不同等级的纸张的选择分量（例如湿度）。
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3.发明授权System and method for the determination of certain physical characteristics of sheet materials. 失效用于确定片材的某些物理特性的系统和方法。
公开(公告)号：US4970895A
公开(公告)日：1990-11-20
申请号：US494906
申请日：1990-03-09
CPC分类号： G01N3/08 , G01N3/20 , G01N33/346 , G01N2203/0098 , G01N2203/0278 , G01N2203/0282
摘要： A sensor is disclosed for sensing a physical property of a sheet material. The sensor includes a mechanism for supporting one side of the sheet along the periphery of a defined region and a mechanism for forcibly deflecting the sheet into the unsupported center of the defined region. A transducer may also be incorporated to sense the force required to deflect the sheet into the unsupported region and/or the distance that the sheet is deflected into the unsupported region. The sensor may be operatively coupled to a computer programmed to determine a physical property of the sheet based upon the sensed force and/or distance, such as the sheet failure strength.
摘要翻译： 公开了用于感测片材的物理性质的传感器。 传感器包括用于沿着限定区域的周边支撑片材的一侧的机构和用于将片材强制地偏转到限定区域的未支撑中心的机构。 传感器还可以被结合以感测将片材偏转到无支撑区域所需的力和/或片材偏转到无支撑区域的距离。 传感器可以可操作地耦合到被编程以基于感测的力和/或距离（例如片材失效强度）确定片材的物理性质的计算机。
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公开(公告)号：US4936141A
公开(公告)日：1990-06-26
申请号：US105635
申请日：1987-10-06
CPC分类号： G01N33/346 , G01N21/86 , G01N2021/8609 , G01N2021/8663
摘要： A method and device for determining the strength of a sheet material, such as paper, utilizing floc size and the variability of the local basis weight of the sheet. The force required to deflect the moving sheet out of a nominal position, the distance the sheet is deflected by said force and the average tension applied to the sheet may also be utilized in the above determination of sheet strength.
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公开(公告)号：US5138878A
公开(公告)日：1992-08-18
申请号：US635291
申请日：1990-12-28
CPC分类号： G01L5/107 , G01L5/045 , G01L5/16 , G01N33/346
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。
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公开(公告)号：US5101661A
公开(公告)日：1992-04-07
申请号：US635305
申请日：1990-12-28
CPC分类号： G01L5/106 , G01L5/10 , G01L5/107 , G01N33/346
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。
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公开(公告)号：US5243407A
公开(公告)日：1993-09-07
申请号：US674432
申请日：1991-03-22
申请人： Harriss King , Lee M. Chase , Leonard M. Anderson
发明人： Harriss King , Lee M. Chase , Leonard M. Anderson
CPC分类号： G01G9/005 , G01G17/02 , G01N21/86 , G01N2021/8672
摘要： A device for characterizing the formation of a sheet material is described. The device comprises a formation sensor for measuring the basis weight of the sheet material as the material passes through the sensor, and signal processing circuitry which receives a basis weight signal from the formation sensor and which produces three types of outputs, which outputs characterize: (1) the magnitude of variation in the sheet basis weight; (2) the strength of the weakest portion or portions of the sheet; and (3) the size of the flocs comprising the sheet. The formation sensor includes a light pipe that is held against the sheet as the sheet moves through the sensor, and that directs a small spot of light transmitted through the sheet to a light detecting device. The magnitude of small-scale variation in the sheet basis weight is computed by determining the ratio between average value of the basis weight signal and the varying or AC component of the basis weight signal.
摘要翻译： 描述了用于表征片材的形成的装置。 该装置包括：地层传感器，用于在材料通过传感器时测量片材的基重;以及信号处理电路，其接收来自地层传感器的基重信号并产生三种类型的输出，其特征在于：（ 1）纸张单位面积的变化幅度; （2）最弱部分或薄片部分的强度; 和（3）包含片材的絮凝物的尺寸。 地层传感器包括当片材移动通过传感器时保持在片材上的光管，并且将透过片材的小光斑引导到光检测装置。 通过确定基重信号的平均值与基重信号的变化或AC分量之间的比率来计算纸张单位面积重量的小幅度变化的幅度。
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公开(公告)号：US5029469A
公开(公告)日：1991-07-09
申请号：US247177
申请日：1988-09-21
摘要： A sheet tension measuring device is disclosed for measuring the tension of a moving sheet wherein a moving sheet is accurately positioned with pinchers at 2 spaced locations. The sheet is deflected between these pinchers from its nominal straight line path, and the amount of deflection and deflecting force are measured. The pinchers iron out any wrinkles in the sheet as the moving sheet slides through the pinchers. Sheet tension is computed based upon the measured deflection force and deflection distance. The resulting measurements of local sheet tension are used to correct nondestructive sheet strength measurements. A device and method are also disclosed for nondestructively determining the sheet strength and the extensional stiffness of the sheet in the machine direction and in the cross-direction.
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公开(公告)号：US5171403A
公开(公告)日：1992-12-15
申请号：US718199
申请日：1991-06-20
申请人： Lee M. Chase , John D. Goss
发明人： Lee M. Chase , John D. Goss
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。
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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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