公开(公告)号：EP0295486A3

公开(公告)日：1990-05-16

申请号：EP88108617.7

申请日：1988-05-30

Applicant: ABB PROCESS AUTOMATION INC.

Inventor： Sturm, Steven Perry

IPC: G01N21/35 ,  G01N33/34

CPC classification number: G01N21/35 ,  G01N21/3563 ,  G01N33/346

Abstract: Apparatus and associated methods for measuring the polymer content of a mixture (2) having polymer and cellulose components. Infrared absorption means (6, 55) are employed to derive a measurement of that fraction of the combined weights of polymer and cellulose components which is accounted for by the polymer.

公开(公告)号：EP0332018A2

公开(公告)日：1989-09-13

申请号：EP89103455.5

申请日：1989-02-28

Applicant: ABB PROCESS AUTOMATION INC.

Inventor： Sturm, Steven Perry

IPC: G01N21/31 ,  G01N21/35 ,  G01N33/34

CPC classification number: G01N21/86 ,  G01N21/314 ,  G01N21/35 ,  G01N33/346 ,  G01N2021/3188 ,  G01N2021/8663

Abstract: A sensor (2) for use in measuring the clay content of a sheet (8) of paper during its continuous manufacture. The sensor produces electrical indications of the intensity of radiation transmitted through or reflected from the sheet (8) for each of a plurality of selected narrow bands of infrared radiation. The selected bands include a measurement band having a center wavelength selected from a peak absorption range (46,48,50) for kaolin and a reference band having a center wavelength selected from outside a peak absorption range for kaolin. The radiation bands are selected to minimize error resulting from differences in sensitivity to absorption by water.

Abstract translation: 一种用于在其连续制造期间测量纸张（8）的粘土含量的传感器（2）。 传感器产生对于多个选定的窄带红外辐射中的每一个透射通过或从片材（8）反射的辐射的强度的电指示。 所选择的带包括从高岭土的峰值吸收范围（46,48,50）选择的中心波长的测量带和从高岭土的峰值吸收范围外侧选择的中心波长的参考频带。 选择辐射带以最小化由水的吸收敏感性差异引起的误差。

公开(公告)号：EP0323552A3

公开(公告)日：1990-09-12

申请号：EP88117743.0

申请日：1988-10-25

Applicant: ABB PROCESS AUTOMATION INC.

Inventor： Sturm, Steven Perry

IPC: G01N21/35 ,  G01N33/34

CPC classification number: G01N21/86 ,  G01N21/3559 ,  G01N33/346 ,  G01N2021/3148 ,  G01N2021/8663 ,  G01N2201/1211

Abstract: Apparatus and methods for use in measuring the moisture content of heavy-grade sheets of paper during their continuous manufacture. In one aspect, means employing infrared absorption techniques for determining the fiber weight per unit area of a sheet having a fiber weight of up to 1100 grams per square meter are provided. In another aspect, means employing infrared absorption techniques including the use of two moisture absorption bands and associated moisture reference bands for calculating the average temperature of the sheet are provided. The latter aspect may be used to produce an indication of moisture weight per unit area, wherein the indication is substantially independent on changes in the average temperature, and enables accurate measurement of the moisture weight per unit area of heavy grades of paper having moisture weights of up to 450 grams per square meter. The former aspect may be employed in measuring the moisture content of heavy grades of paper having moisture weights of up to 90 grams per square meter.

公开(公告)号：EP0323552A2

公开(公告)日：1989-07-12

申请号：EP88117743.0

申请日：1988-10-25

Applicant: ABB PROCESS AUTOMATION INC.

Inventor： Sturm, Steven Perry

IPC: G01N21/35 ,  G01N33/34

CPC classification number: G01N21/86 ,  G01N21/3559 ,  G01N33/346 ,  G01N2021/3148 ,  G01N2021/8663 ,  G01N2201/1211

Abstract: Apparatus and methods for use in measuring the moisture content of heavy-grade sheets of paper during their continuous manufacture. In one aspect, means employing infrared absorption techniques for determining the fiber weight per unit area of a sheet having a fiber weight of up to 1100 grams per square meter are provided. In another aspect, means employing infrared absorption techniques including the use of two moisture absorption bands and associated moisture reference bands for calculating the average temperature of the sheet are provided. The latter aspect may be used to produce an indication of moisture weight per unit area, wherein the indication is substantially independent on changes in the average temperature, and enables accurate measurement of the moisture weight per unit area of heavy grades of paper having moisture weights of up to 450 grams per square meter. The former aspect may be employed in measuring the moisture content of heavy grades of paper having moisture weights of up to 90 grams per square meter.

Abstract translation: 装置和在他们的连续制造过程中测量的纸重级片材的水分含量使用方法。 在一个方面，指用人红外吸收技术来提供每具有每平方米高达1100克纤维重量的片材的单位面积的纤维重量确定性挖掘。 在另一个方面，手段用人红外吸收技术，包括使用两个湿气吸收带和用于计算片材的平均温度被设置相关联的水分参考频带。 后一方面可以用于产生在每单位面积水分重量，worin指示是基本上独立于在平均温度的变化的指示，和每重等级的具有纸张水分重量的单位面积启用水分重量的精确测量 高达每平方米450克。 前者方面可以在测量重等级的每平方米高达90克具有纸张水分权重的水分含量被使用。

公开(公告)号：EP0332018A3

公开(公告)日：1991-07-24

申请号：EP89103455.5

申请日：1989-02-28

Applicant: ABB PROCESS AUTOMATION INC.

Inventor： Sturm, Steven Perry

IPC: G01N21/31 ,  G01N21/35 ,  G01N33/34

CPC classification number: G01N21/86 ,  G01N21/314 ,  G01N21/35 ,  G01N33/346 ,  G01N2021/3188 ,  G01N2021/8663

Abstract: A sensor (2) for use in measuring the clay content of a sheet (8) of paper during its continuous manufacture. The sensor produces electrical indications of the intensity of radiation transmitted through or reflected from the sheet (8) for each of a plurality of selected narrow bands of infrared radiation. The selected bands include a measurement band having a center wavelength selected from a peak absorption range (46,48,50) for kaolin and a reference band having a center wavelength selected from outside a peak absorption range for kaolin. The radiation bands are selected to minimize error resulting from differences in sensitivity to absorption by water.

公开(公告)号：EP0295486A2

公开(公告)日：1988-12-21

申请号：EP88108617.7

申请日：1988-05-30

Applicant: ABB PROCESS AUTOMATION INC.

Inventor： Sturm, Steven Perry

IPC: G01N21/35 ,  G01N33/34

CPC classification number: G01N21/35 ,  G01N21/3563 ,  G01N33/346

Abstract: Apparatus and associated methods for measuring the polymer content of a mixture (2) having polymer and cellulose components. Infrared absorption means (6, 55) are employed to derive a measurement of that fraction of the combined weights of polymer and cellulose components which is accounted for by the polymer.

Abstract translation: 用于测量具有聚合物和纤维素组分的混合物（2）的聚合物含量的装置和相关方法。 使用红外吸收装置（6,55）来测量由聚合物考虑的聚合物和纤维素组分的组合重量的分数。