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1. 发明授权

US08660682B2 Air wipe and sheet guide temperature control on paper and continuous web scanners 有权
标题翻译：纸张和连续网页扫描仪上的空气擦拭和纸张导板温度控制
公开(公告)号：US08660682B2
公开(公告)日：2014-02-25
申请号：US12951723
申请日：2010-11-22
申请人： Gertjan Hofman , Ron Beselt
发明人： Gertjan Hofman , Ron Beselt
IPC分类号： G06F19/00
CPC分类号： G05D23/1934 , D21J1/18
摘要： Paper and continuous web scanners operate at varying and high temperature conditions. Regulating the temperature within the measurement gap between dual scanner heads during measurement and calibration modes of operation by employing air wipe and sheet guide temperature control assures consistent and accuracy sensor measurements of sheet characteristics. Air wipes blow pre-heated air into the measurement and the sheet guides are heated. The air temperature fluctuations that otherwise caused significant adverse effects on the sensors that measure, for example, the basis weight, ash content, and thickness of the moving sheet, are eliminated.
摘要翻译：纸张和连续纸幅扫描仪在不同的高温条件下运行。通过使用空气擦拭和片材导向器温度控制，在测量和校准操作模式期间调节双扫描仪头之间的测量间隙内的温度，确保了片材特性的一致和准确的传感器测量。空气湿巾将预热的空气吹入测量中，并且片材导板被加热。消除了另外对传感器产生显着不利影响的空气温度波动，例如测量移动片材的基重，灰分含量和厚度。

2. 发明申请

US20120130526A1 Air Wipe and Sheet Guide Temperature Control on Paper and Continuous Web Scanners 有权
标题翻译：纸张和连续网络扫描仪上的空气擦拭和纸张导板温度控制
公开(公告)号：US20120130526A1
公开(公告)日：2012-05-24
申请号：US12951723
申请日：2010-11-22
申请人： Gertjan Hofman , Ron Beselt
发明人： Gertjan Hofman , Ron Beselt
IPC分类号： G05D23/19 , B32B37/00 , G06F17/00 , B32B41/00
CPC分类号： G05D23/1934 , D21J1/18
摘要： Paper and continuous web scanners operate at varying and high temperature conditions. Regulating the temperature within the measurement gap between dual scanner heads during measurement and calibration modes of operation by employing air wipe and sheet guide temperature control assures consistent and accuracy sensor measurements of sheet characteristics. Air wipes blow pre-heated air into the measurement and the sheet guides are heated. The air temperature fluctuations that otherwise caused significant adverse effects on the sensors that measure, for example, the basis weight, ash content, and thickness of the moving sheet, are eliminated.
摘要翻译：纸张和连续纸幅扫描仪在不同的高温条件下运行。通过使用空气擦拭和片材导向器温度控制，在测量和校准操作模式期间调节双扫描仪头之间的测量间隙内的温度，确保了片材特性的一致和准确的传感器测量。空气湿巾将预热的空气吹入测量中，并且片材导板被加热。消除了另外对传感器产生显着不利影响的空气温度波动，例如测量移动片材的基重，灰分含量和厚度。

3. 发明授权

US08101047B2 Method of correcting gypsum crystal water effect on infrared moisture measurement 有权
标题翻译：石膏结晶水对红外线测湿的影响方法
公开(公告)号：US08101047B2
公开(公告)日：2012-01-24
申请号：US12560763
申请日：2009-09-16
申请人： Unto Kulma , Jaakko Olavi Uusalo , Antti Paavola , Johanna Hansen , Gertjan Hofman
发明人： Unto Kulma , Jaakko Olavi Uusalo , Antti Paavola , Johanna Hansen , Gertjan Hofman
IPC分类号： D21H17/67 , D21F7/00 , G01N23/06
CPC分类号： G01N23/16 , G01N33/346
摘要： Ash composition measurements of calcium carbonate and gypsum in paper is accomplished with a dual X-ray sensor system with one X-ray source that is powered at about 5.9 KV and a second X-ray source that is powered at about 4.2 KV. Corresponding detectors measure radiation from the respective X-ray sources that is emitted from the paper. Data derived from the measurements yields the gypsum and crystal water content in the paper. The dual X-ray sensor system can be employed in conjunction with infrared total moisture measurements of paper products being manufactured on a papermaking making machine, which contain gypsum and calcium carbonate, in order to correct for the gypsum crystal water effect.
摘要翻译：纸张中碳酸钙和石膏的灰分组成测量是用双X射线传感器系统完成的，该X射线传感器系统具有一个在5.9KV左右供电的X射线源，另一个X射线源的功率约为4.2KV。相应的检测器测量从纸张发射的各个X射线源的辐射。从测量得出的数据可以得出纸中的石膏和结晶水含量。双X射线传感器系统可以与在含有石膏和碳酸钙的造纸机上制造的纸制品的红外总湿度测量一起使用，以便校正石膏晶体水效应。

4. 发明申请

US20070147584A1 Measurement of ash composition using scanning high voltage X-ray sensor 有权
标题翻译：使用扫描高压X射线传感器测量灰分成分
公开(公告)号：US20070147584A1
公开(公告)日：2007-06-28
申请号：US11318889
申请日：2005-12-27
申请人： Gertjan Hofman
发明人： Gertjan Hofman
IPC分类号： G01N23/06
CPC分类号： G01N23/06
摘要： A system, method and computer program product is provided that enables measurement and determination of the relative material composition of ash content in a paper product. While materials in ash content, e.g., CaCaO3, Clay, and TiO2, have distinct x-ray absorption spectrum, by varying an X-ray gauge rapidly, measuring the absorption at each energy level and, comparing this to tables of fundamental physical parameters, the relative fractions of materials in ash content, e.g., CaCaO3, Clay, and TiO2, can be extracted. The relative weights of other constituent materials found in web or sheet paper products are additionally determinable.
摘要翻译：提供了一种系统，方法和计算机程序产品，其能够测量和确定纸制品中灰分含量的相对材料组成。虽然灰分含量的材料，例如CaCaO 3，Clay和TiO 2，通过快速变化X射线计，具有不同的x射线吸收光谱，测量在每个能级处的吸收，并且将其与基础物理参数表相比，灰分含量的材料的相对分数，例如CaCO 3，Clay和TiO 2，可以提取。在纸张或纸张纸产品中发现的其他成分材料的相对重量也是可以确定的。

5. 发明授权

US09612213B2 Automatic z-correction for basis weight sensors 有权
公开(公告)号：US09612213B2
公开(公告)日：2017-04-04
申请号：US14517762
申请日：2014-10-17
申请人： Reena Meijer Drees , Gertjan Hofman
发明人： Reena Meijer Drees , Gertjan Hofman
IPC分类号： G01N23/16 , G01N23/09 , G01G17/02 , G01G9/00
CPC分类号： G01N23/16 , G01G9/005 , G01G17/02 , G01N23/09 , G01N2223/04 , G01N2223/102 , G01N2223/6425
摘要： Nuclear-based basis weight sensors are passline-sensitive. Error in measurement is induced when the sheet moves up and down in the gap between the radiation source and detector. A passline-insensitive basis weight sensor includes a triangulation sensor to measure the position of the sheet within the gap. The sensor and gap is characterized in the laboratory for its passline behavior over a range of basis weights. The curves are either parameterized or a lookup table is created for each weight and passline position and the data added to the sensor's processor. The basis weight measured can be automatically corrected to account for deviations from the passline or nominal path through the sensor.

6. 发明申请

US20100078139A1 Method of Correcting Gypsum Crystal Water Effect on Infrared Moisture Measurement 有权
标题翻译：校正石膏晶体水对红外线水分测量的影响
公开(公告)号：US20100078139A1
公开(公告)日：2010-04-01
申请号：US12560763
申请日：2009-09-16
申请人： Unto Kulma , Jaakko Olavi Uusalo , Antti Paavola , Johanna Hansen , Gertjan Hofman
发明人： Unto Kulma , Jaakko Olavi Uusalo , Antti Paavola , Johanna Hansen , Gertjan Hofman
IPC分类号： D21F7/06 , G01N23/06
CPC分类号： G01N23/16 , G01N33/346
摘要： Ash composition measurements of calcium carbonate and gypsum in paper is accomplished with a dual X-ray sensor system with one X-ray source that is powered at about 5.9 KV and a second X-ray source that is powered at about 4.2 KV. Corresponding detectors measure radiation from the respective X-ray sources that is emitted from the paper. Data derived from the measurements yields the gypsum and crystal water content in the paper. The dual X-ray sensor system can be employed in conjunction with infrared total moisture measurements of paper products being manufactured on a papermaking making machine, which contain gypsum and calcium carbonate, in order to correct for the gypsum crystal water effect.
摘要翻译：纸张中碳酸钙和石膏的灰分组成测量是用双X射线传感器系统完成的，该X射线传感器系统具有一个在5.9KV左右供电的X射线源，另一个X射线源的功率约为4.2KV。相应的检测器测量从纸张发射的各个X射线源的辐射。从测量得出的数据可以得出纸中的石膏和结晶水含量。双X射线传感器系统可以与在含有石膏和碳酸钙的造纸机上制造的纸制品的红外总湿度测量一起使用，以便校正石膏晶体水效应。

7. 发明申请

US20070145286A1 Single-point measurement of high-Z additives in sheets 有权
标题翻译：单位测量片材中高Z添加剂
公开(公告)号：US20070145286A1
公开(公告)日：2007-06-28
申请号：US11317693
申请日：2005-12-23
申请人： Gertjan Hofman , Reena Drees
发明人： Gertjan Hofman , Reena Drees
IPC分类号： G01N23/00 , G01T1/00
CPC分类号： G01N33/44 , G01N23/16 , G01N33/346 , G01N2223/1006
摘要： An apparatus, method and computer program product for determining a concentration of a high-Z material in a material sample. The method comprises steps of: receiving a material sample and subjecting the material sample to a first sensor device that is substantially ash insensitive for generating a first sensor response signal, and a second sensor device that is sensitive to presence of high-Z material and generating a second sensor response signal. Both the first and second sensor response signals from the first and second sensor devices are processed simultaneously to extract a weight of the high-Z material additive. The weight of the high-Z material additive is determined in a single scan of the material sample.
摘要翻译：一种用于确定材料样品中高Z材料浓度的装置，方法和计算机程序产品。该方法包括以下步骤：接收材料样品并使材料样品经受对于产生第一传感器响应信号基本上不敏感的第一传感器装置，以及对存在高Z材料敏感的第二传感器装置，并产生第二传感器响应信号。来自第一和第二传感器装置的第一和第二传感器响应信号都被同时处理以提取高Z材料添加剂的重量。在材料样品的单次扫描中确定高Z材料添加剂的重量。

8. 发明申请

US20100159121A1 Differential Coat Weight Measurement by Means of Nuclear or X-ray Gauges 有权
标题翻译：通过核或X射线测量仪进行差分重量测量
公开(公告)号：US20100159121A1
公开(公告)日：2010-06-24
申请号：US12621508
申请日：2009-11-19
申请人： Reena Meijer Drees , Gertjan Hofman
发明人： Reena Meijer Drees , Gertjan Hofman
IPC分类号： B05D1/00 , G01D18/00 , G01J1/42
CPC分类号： G01B15/00 , G01B15/02 , G01B15/025 , G01D5/50
摘要： An improved differential coat weight technique employs a novel algorithm for measuring the weight of a coating material that has been deposited onto a sheet of substrate. The invention employs dual x-ray or nuclear gauges such that, even though the downstream sensor is never exposed to uncoated sheet substrate, imparting the downstream sensor with the ability to predict results that it would have yielded when measuring the uncoated sheet substrate, leads to the development of a coat weight calibration protocol from which the basis weight of the coating can be ascertained directly from measurements from the upstream and downstream sensors. No subtraction of results is required. Moreover, the two sensors do not need to be re-calibrated whenever the relative proportions of the coating and base substrate change. The technique is particularly suited for applications where the coating material and substrate are made of substances that have very different atomic numbers.
摘要翻译：改进的差速涂层重量技术采用新颖的算法来测量已沉积在基片上的涂层材料的重量。本发明采用双X射线或核仪表，使得即使下游传感器从未暴露于未涂覆的片材基底，赋予下游传感器预测在测量未涂覆片材基底时可能产生的结果的能力，导致开发涂层重量校准方案，可以从上游和下游传感器的测量直接确定涂层的基重。不需要减去结果。此外，只要涂层和基底的相对比例改变，两个传感器就不需要重新校准。该技术特别适用于涂料和基材由具有非常不同原子序数的物质制成的应用。

9. 发明申请

US20150323375A1 Automatic z-Correction for Basis Weight Sensors 有权
标题翻译：自动z校正基重量传感器
公开(公告)号：US20150323375A1
公开(公告)日：2015-11-12
申请号：US14517762
申请日：2014-10-17
申请人： Reena Meijer Drees , Gertjan Hofman
发明人： Reena Meijer Drees , Gertjan Hofman
IPC分类号： G01G9/00 , G01N23/16 , G01G17/02 , G01N23/09
CPC分类号： G01N23/16 , G01G9/005 , G01G17/02 , G01N23/09 , G01N2223/04 , G01N2223/102 , G01N2223/6425
摘要： Nuclear-based basis weight sensors are passline-sensitive. Error in measurement is induced when the sheet moves up and down in the gap between the radiation source and detector. A passline-insensitive basis weight sensor includes a triangulation sensor to measure the position of the sheet within the gap. The sensor and gap is characterized in the laboratory for its passline behavior over a range of basis weights. The curves are either parameterized or a lookup table is created for each weight and passline position and the data added to the sensor's processor. The basis weight measured can be automatically corrected to account for deviations from the passline or nominal path through the sensor.
摘要翻译：基于核的基重传感器是通过线路敏感的。当片材在辐射源和检测器之间的间隙中上下移动时，会引起测量误差。无线传感器的基重传感器包括三角测量传感器，用于测量间隙内片材的位置。传感器和间隙在实验室中的特征在于在一定范围的基重上的通行行为。曲线既可以参数化，也可以为每个加权和通行位置以及添加到传感器处理器的数据创建查找表。测量的基重可以自动校正，以解决通过传感器的通行线或标称路径的偏差。

10. 发明授权

US08394449B2 Differential coat weight measurement by means of nuclear or X-ray gauges 有权
标题翻译：通过核或X射线测量仪进行差示涂层重量测量
公开(公告)号：US08394449B2
公开(公告)日：2013-03-12
申请号：US12621508
申请日：2009-11-19
申请人： Reena Meijer Drees , Gertjan Hofman
发明人： Reena Meijer Drees , Gertjan Hofman
IPC分类号： C23C16/52 , G01T1/167 , H04N5/33
CPC分类号： G01B15/00 , G01B15/02 , G01B15/025 , G01D5/50
摘要： An improved differential coat weight technique employs a novel algorithm for measuring the weight of a coating material that has been deposited onto a sheet of substrate. The invention employs dual x-ray or nuclear gauges such that, even though the downstream sensor is never exposed to uncoated sheet substrate, imparting the downstream sensor with the ability to predict results that it would have yielded when measuring the uncoated sheet substrate, leads to the development of a coat weight calibration protocol from which the basis weight of the coating can be ascertained directly from measurements from the upstream and downstream sensors. No subtraction of results is required. Moreover, the two sensors do not need to be re-calibrated whenever the relative proportions of the coating and base substrate change. The technique is particularly suited for applications where the coating material and substrate are made of substances that have very different atomic numbers.
摘要翻译：改进的差速涂层重量技术采用新颖的算法来测量已沉积在基片上的涂层材料的重量。本发明采用双X射线或核仪表，使得即使下游传感器从未暴露于未涂覆的片材基底，赋予下游传感器预测在测量未涂覆片材基底时可能产生的结果的能力，导致开发涂层重量校准方案，可以从上游和下游传感器的测量直接确定涂层的基重。不需要减去结果。此外，只要涂层和基底的相对比例改变，两个传感器就不需要重新校准。该技术特别适用于涂料和基材由具有非常不同原子序数的物质制成的应用。

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