公开(公告)号：US5536942A

公开(公告)日：1996-07-16

申请号：US196207

申请日：1994-03-11

申请人： Niklas Barringer ,  Stig Norder

发明人： Niklas Barringer ,  Stig Norder

IPC分类号： D21C9/00 ,  G01N1/28 ,  G01N15/00 ,  G01N15/02 ,  G01N15/06 ,  G01N21/35 ,  G01N21/85 ,  G01N33/34

CPC分类号： G01N1/4077 ,  G01N15/02 ,  G01N33/343 ,  G01N2015/0057 ,  G01N2015/0675 ,  G01N21/359 ,  G01N21/85

摘要： A method and an arrangement for determining properties of fibers in a supension of said fibers with the aid of spectroscopic measurements carried out in a wavelength range within the near infrared range (NIR), comprising introducing the fiber suspension into a measuring cell (20) which is provided with a filter (35) and an outlet (47) at one end thereof; concentrating the fiber suspension in the cell while simultaneously measuring the absorbency until a predetermined value is obtained at that wavelength at which the measurement is effected, or for the highest peak of the registered spectrum, at which point supply of the suspension is stopped, the outlet (47) from the cell is closed and a complete spectrum within the wavelength range is registered, whereafter the sought properties of the fibers are determined in a computer unit on the basis of earlier calibrations carried out on samples of known fiber properties. An arrangement for washing a fiber suspension-sample includes a cylinder having a piston, piston rod and a filter which is mounted close to the end of the cylinder opposite the piston rod, so as to divide the cylinder into a large piston-accommodating chamber and a small chamber, wherein delivery pipes leading to the cylinder and outlet pipes extending therefrom are connected to the small chamber and inlet pipes through which sample is delivered to the cylinder and outlet pipes for washed sample are connected to the large chamber.

摘要翻译： PCT No.PCT / SE92 / 00626 Sec。 371日期：1994年3月11日 102（e）1994年3月11日PCT PCT 1992年9月11日PCT公布。 出版物WO93 / 05384 日期：1995年3月18日。一种用于通过在近红外范围（NIR）内的波长范围内进行的光谱测量来确定所述纤维的纤维的纤维性质的方法和装置，包括将纤维悬浮液引入 在其一端设置有过滤器（35）和出口（47）的测量单元（20）; 将纤维悬浮液浓缩在细胞中同时测量吸光度，直到在进行测量的波长处获得预定值，或者对于登记光谱的最高峰，停止供应悬浮液时，出口 （47）关闭，并且记录波长范围内的完整光谱，然后基于对已知光纤特性的样品进行的较早校准，在计算机单元中确定所寻求的光纤性能。 用于清洗纤维悬浮液样品的装置包括具有活塞，活塞杆和过滤器的气缸，其安装在与活塞杆相对的气缸的端部附近，以将气缸分成大的活塞容纳室， 小室，其中通向气缸的输送管和从其延伸的出口管连接到小室和入口管，样品被送到气缸，洗涤样品的出口管连接到大腔。

公开(公告)号：US5530551A

公开(公告)日：1996-06-25

申请号：US199298

申请日：1994-03-02

申请人： Chistopher J. Cantrall ,  Timothy P. Dabbs ,  Monty Glass ,  William Humphries ,  Leslie J. Wills

发明人： Chistopher J. Cantrall ,  Timothy P. Dabbs ,  Monty Glass ,  William Humphries ,  Leslie J. Wills

IPC分类号： G01B11/02 ,  G01B11/06 ,  G01B11/08 ,  G01B11/10 ,  G01B11/24 ,  G01B11/245 ,  G01B21/00 ,  G01D21/00 ,  G01N15/00 ,  G01N15/02 ,  G01N15/14 ,  G01N21/27 ,  G01N21/39 ,  G01N21/59 ,  G01N21/84 ,  G01N33/36 ,  G01B11/00

CPC分类号： G01N15/0205 ,  G01B11/105 ,  G01N21/27 ,  G01N33/362 ,  G01N15/0227 ,  G01N2015/0057 ,  G01N2015/0277 ,  G01N2021/1738 ,  G01N2021/391 ,  G01N2021/5957 ,  G01N2021/845 ,  G01N2201/082 ,  G01N2201/1248 ,  G01N2291/048

摘要： Disclosed is a method/apparatus to determine any one of a plurality of parameters: shape, area, chemical composition, diameter, color, number, thickness, width, length, absorptivity, reflectivity, transmittivity, dielectric constant, raman scattering profile, fluorescence, surface tension, roughness, profile, density, position and orientation. Also use of a plurality of energy beams as source energy: charged and neutral particle beams, gamma-, X-, micro-, optical and acoustic waves. The described apparatus determines the mean and standard deviation of a plurality of diameters of wool fibers, and includes a He-Ne laser (101), and a pinhole (102) which produce an expanding laser beam which passes through cell (105). Beam splitter (103) is operatively disposed to pinhole (102) and laser (101) to direct a portion of the laser beam to reference detector (109) which is electrically connected to processor (110) via line (111). When apparatus (100) is operating wool fibers in an isopropanol-wool slurry pass through cell (105) generally at a non-zero degree angle to the direction of slurry flow through cell (105) to interact with the laser beam in cell (105 ). Beam splitter (104) and microscope objective (106) are operatively disposed with respect to laser (101), pinhole (102) and cell (105) to produce an in focus magnified transmission image of wool fibers in cell (105) in the plane of end (107) of optical fiber bundle (108). Each of the fibers in bundle (108) is connected to a photodiode detector (112). Processor/timer (113) is connected electrically to detector (112) by line (114). Processor/timer (113) is also connected electrically to computer (115) by line (116) and to processor (110) by line (117). Detector (118) is connected electrically to processor (110) by line (119). Processor (110) is connected electrically to computer (115) by line (120). Detector (118) is operatively disposed with respect to laser (101), pinhole (102) and cell (105) to detect outgoing light.

公开(公告)号：US4906936A

公开(公告)日：1990-03-06

申请号：US210680

申请日：1988-06-17

申请人： Rudolf Butas

发明人： Rudolf Butas

IPC分类号： G01N15/00 ,  G01N15/12

CPC分类号： G01N15/1209 ,  G01N15/1218 ,  G01N2015/0057 ,  G01N2015/1254

摘要： Device for measuring the length and number of fibers in an aqueous suspension has a sensor with an upper and lower electrode with an insulating part between the electrodes, a rectifying channel having an inlet and outlet part, the first in close contact with the upper electrode, the second in close contact with the lower electrode, with mutually aligned openings of the sensor and the rectifying means. This arrangement can be applied for such suspensions of fibers or other particles, the electric conductivity of which is different from the conductivity of their carrying medium.

摘要翻译： 用于测量水性悬浮液中的纤维的长度和数量的装置具有传感器，其具有在电极之间具有绝缘部分的上下电极，具有入口和出口部分的整流通道，第一与上电极紧密接触， 第二与下电极紧密接触，具有传感器和整流装置的相互对准的开口。 这种布置可以应用于纤维或其他颗粒的悬浮液，其电导率不同于其载体的导电性。

公开(公告)号：US4662991A

公开(公告)日：1987-05-05

申请号：US576322

申请日：1984-02-02

申请人： Anssi Karna ,  Heikki Liimatainen

发明人： Anssi Karna ,  Heikki Liimatainen

IPC分类号： G01N15/00 ,  G01N15/06 ,  G01N33/34 ,  D21C1/08 ,  G01N7/10

CPC分类号： G01N15/0618 ,  G01N33/343 ,  G01N2015/0057

摘要： A method of determining the properties of fiber pulp by separating a batch of a predetermined volume, by measuring its temperature, and by filtering water from it by means of a pressure difference. In accordance with the present invention, substantially all the water is filtered off from the pulp mixture, an air flow is produced through the filtered pulp cake by means of a pressure difference, the resisting effect of the pulp cake on the flow of air is measured, and the pulp cake is weighed, whereafter the properties of the pulp are calculated on the basis of the measurements, from mathematical models developed for this purpose.The apparatus developed for carrying out the method according to the invention has a vessel equipped with a stirrer for the specimen, a device for measuring the temperature of the specimen, means for directing the specimen onto the wire and for removing the water through the wire by means of a pressure difference, a device for measuring the pressure difference or through-flow produced across the wire and the pulp layer on the wire, and devices for registering the obtained measurements and for the output of the properties of the pulp. For directing a batch of a predetermined volume from the vessel into the measuring vessel placed against the wire, this determination apparatus has a specific portioning device, and the device has been fitted not to register the pressure difference or throughflow produced across the wire and the pulp layer on the wire, until substantially all the water has been removed from the pulp layer filtered onto the wire. In addition, this apparatus has means for removing the pulp layer from the wire and a device for weighing the pulp layer.

摘要翻译： 通过分离一批预定体积的量，通过测量其温度和通过压力差从其中过滤水来确定纤维纸浆的性质的方法。 根据本发明，基本上所有的水都从纸浆混合物中滤出，通过压力差通过过滤的纸浆饼块产生气流，测量纸浆饼对空气流动的抵抗作用 ，并称量纸浆饼，然后根据为此目的开发的数学模型，基于测量值计算纸浆的性能。 用于实施本发明的方法开发的装置具有装有用于样品的搅拌器的容器，用于测量样品温度的装置，用于将样品引导到线上并通过导线去除水的装置 压力差的装置，用于测量在线材上产生的压力差或跨流的装置，以及用于配准所获得的测量值和输出纸浆特性的装置。 为了将一批预定体积从容器引导到放置在电线上的测量容器中，该确定装置具有特定的分配装置，并且该装置已经装配成不记录跨过电线和纸浆产生的压力差或通过流量 直到基本上所有的水已经从过滤到线上的纸浆层中去除。 此外，该装置具有用于从纸丝层除去纸浆层的装置和用于称量纸浆层的装置。

公开(公告)号：US4285231A

公开(公告)日：1981-08-25

申请号：US112426

申请日：1980-01-16

申请人： Kjell R. A. Eriksson

发明人： Kjell R. A. Eriksson

IPC分类号： G01N15/00 ,  G01N15/02

CPC分类号： G01N15/0272 ,  G01N2015/0057

摘要： The particle size range of a paper pulp suspension is determined by flowing the suspension up a measuring tube having a filter at the bottom thereof. When a plug of suspended material has formed, the inlet of the measuring tube is closed off. A liquid is then fed to a member which forms a gap in the plug of material and passes up through a measured portion of the suspension. The time taken for the liquid to pass through the plug to a given height is indicative of the mean particle size of the suspension.

摘要翻译： 纸浆悬浮液的粒度范围是通过将悬浮液向底部流过具有过滤器的测量管来确定的。 当形成悬挂材料塞时，测量管的入口被封闭。 然后将液体供给到在材料塞中形成间隙的构件，并向上通过悬浮液的测量部分。 液体通过塞子达到给定高度所需的时间表示悬浮液的平均粒度。

公开(公告)号：US20060087652A1

公开(公告)日：2006-04-27

申请号：US11256974

申请日：2005-10-25

申请人： Niels Hardt ,  Michael Schwarz

发明人： Niels Hardt ,  Michael Schwarz

IPC分类号： G01N21/00

CPC分类号： G01N21/532 ,  G01N15/0205 ,  G01N33/343 ,  G01N2015/0057

摘要： Method and a sensor for determining measured values of properties of a suspension in a machine for producing a fibrous web, in which light interacts with the fibrous suspension. The sensor picking up a scattered light signal and a transmitted light signal and measured values of at least one property are determined by evaluating the scattered light signal and the transmitted light signal.

摘要翻译： 用于确定用于生产纤维网的机器中的悬架的性质的测量值的方法和传感器，其中光与纤维悬浮液相互作用。 通过评估散射光信号和透射光信号来确定拾取散射光信号和透射光信号的传感器以及至少一个特性的测量值。

公开(公告)号：US06806955B2

公开(公告)日：2004-10-19

申请号：US10015787

申请日：2001-12-17

申请人： Ho Fan Jang

发明人： Ho Fan Jang

IPC分类号： G01J330

CPC分类号： G01N33/343 ,  G01N3/40 ,  G01N15/0227 ,  G01N15/1459 ,  G01N15/1463 ,  G01N21/6458 ,  G01N33/46 ,  G01N2015/0057 ,  G01N2015/0294 ,  G01N2015/1479 ,  G01N2015/1488 ,  G01N2015/1497 ,  G01N2021/6417 ,  G01N2203/028 ,  G01N2203/0647

摘要： The invention relates to a fluorescence microscopy technique for measuring physical and chemical properties of individual fiber-like particles. Fluorescence intensity per unit length is shown to be proportional to the fiber coarseness. In addition, other fiber properties such as fiber length, width and wall thickness can be obtained from fluorescence images, and lignin content from fluorescence spectra. The present invention will provide a process for determining the uniformity of pulp samples in terms of the physical and chemical properties of the individual fiber-like particles, particularly wood pulp fibers.

摘要翻译： 本发明涉及用于测量单个纤维状颗粒的物理和化学性质的荧光显微技术。 每单位长度的荧光强度显示与纤维粗糙度成比例。 此外，可以从荧光图像获得纤维长度，宽度和壁厚等其他纤维性质，并从荧光光谱获得木质素含量。 本发明将提供一种用于根据单个纤维状颗粒，特别是木浆纤维的物理和化学性质确定纸浆样品的均匀性的方法。

公开(公告)号：US06657713B2

公开(公告)日：2003-12-02

申请号：US09991394

申请日：2001-11-21

申请人： W. Peter Hansen

发明人： W. Peter Hansen

IPC分类号： B07C536

CPC分类号： G01N15/1456 ,  G01N15/14 ,  G01N15/1404 ,  G01N2015/0057 ,  G01N2015/1413 ,  G01N2015/149

摘要： An instrument for analyzing and dispensing objects larger than about 70 &mgr;m in diameter is based on a flow cytometer with a novel fluidic switch arrangement for diverting a portion of a sample stream in response to detector signals in a flow cell. The instrument is particularly adapted for dispensing multicellular test organisms like nematodes or large microspheres for use in screening large libraries of potential pharmaceutical agents. Hydrodynamic focussing is used to center and align the objects in the flow cell. The objects pass through a sensing zone where optical or other characteristics of the objects are detected. The detector signals are processed and used to operate a fluidic switch that is located downstream from the sensing zone. The fluid stream containing the detected objects emerges from the flow cell into air where a fluid stream controlled by the fluidic switch diverts portions of the stream containing no sample objects or sample objects not meeting predetermined characteristics. The undiverted sample stream deposits selected sample objects into a plurality of containers.

公开(公告)号：US20020117274A1

公开(公告)日：2002-08-29

申请号：US10015787

申请日：2001-12-17

发明人： Ho Fan Jang

IPC分类号： D21C007/12 ,  D21B001/00

CPC分类号： G01N33/343 ,  G01N3/40 ,  G01N15/0227 ,  G01N15/1459 ,  G01N15/1463 ,  G01N21/6458 ,  G01N33/46 ,  G01N2015/0057 ,  G01N2015/0294 ,  G01N2015/1479 ,  G01N2015/1488 ,  G01N2015/1497 ,  G01N2021/6417 ,  G01N2203/028 ,  G01N2203/0647

摘要： The invention relates to a fluorescence microscopy technique for measuring physical and chemical properties of individual fiber-like particles. Fluorescence intensity per unit length is shown to be proportional to the fiber coarseness. In addition, other fiber properties such as fiber length, width and wall thickness can be obtained from fluorescence images, and lignin content from fluorescence spectra. The present invention will provide a process for determining the uniformity of pulp samples in terms of the physical and chemical properties of the individual fiber-like particles, particularly wood pulp fibers.

摘要翻译： 本发明涉及用于测量单个纤维状颗粒的物理和化学性质的荧光显微技术。 每单位长度的荧光强度显示与纤维粗糙度成比例。 此外，可以从荧光图像获得纤维长度，宽度和壁厚等其他纤维性质，并从荧光光谱获得木质素含量。 本发明将提供一种用于根据单个纤维状颗粒，特别是木浆纤维的物理和化学性质确定纸浆样品的均匀性的方法。

公开(公告)号：US06423270B1

公开(公告)日：2002-07-23

申请号：US09843751

申请日：2001-04-30

申请人： Jonathan Stuart Wall

发明人： Jonathan Stuart Wall

IPC分类号： G01N100

CPC分类号： G01N33/6896 ,  G01N15/14 ,  G01N2015/0057 ,  G01N2800/52

摘要： A method of detecting amyloid fibrils in biological samples utilizing flow cytometry is described. It has been found that the measurement of fluorescence from amyloidophilic dyes, such as thioflavin T and Congo red, as well as side scatter and forward scatter measurements are particularly useful in detecting the presence of amyloid fibrils. Flow cytometric detection of amyloid fibrils in subjects such as humans and livestock can be employed for diagnosis, assessment of therapeutic efficacy, research, and monitoring of livestock for the presence of infectious amyloidosis.

摘要翻译： 描述了使用流式细胞术检测生物样品中淀粉样蛋白原纤维的方法。 已经发现，来自淀粉样蛋白嗜性染料（例如硫代黄素T和刚果红）的荧光测量以及侧向散射和前向散射测量对于检测淀粉样蛋白原纤维的存在特别有用。 用于人和牲畜等受试者的淀粉样蛋白原纤维的流式细胞检测可用于诊断，评估治疗功效，研究和监测牲畜感染性淀粉样变性的存在。