公开(公告)号：US09007589B2

公开(公告)日：2015-04-14

申请号：US14027883

申请日：2013-09-16

Applicant: Michael Kon Yew Hughes ,  Sebastien Tixier ,  Stuart James Heath

Inventor： Michael Kon Yew Hughes ,  Sebastien Tixier ,  Stuart James Heath

IPC: G01B11/06 ,  G01N15/08 ,  D21F7/06 ,  B65H20/10

CPC classification number: G01B11/0691 ,  B65H20/10 ,  D21F7/06 ,  G01B7/107 ,  G01N15/0826 ,  G01N21/86 ,  G01N33/346 ,  G01N2015/086 ,  G01N2021/8609 ,  G01N2201/101

Abstract: Dual mounting head scanners measure the thickness of flexible moving porous webs and employ an air clamp on the operative surface of the lower head to maintain the web in physical contact with a measurement surface. As the web is held firmly by the clamp, the vacuum level that is established is indicative of the porosity of the membrane. As compressed air is supplied to a vacuum generator at a given operational pressure, the rate of airflow through the web can be inferred from the vacuum pressure measurements. The rate of airflow through the membrane and therefore the porosity of the membrane are related to the vacuum level. It is not necessary to measure the airflow through the membrane. From the vacuum pressure measurements, the membrane's permeability can also be determined by correlation to empirical data. Thickness measurements are effected by optical triangulation and inductive proximity measurements.

Abstract translation: 双重安装头扫描仪测量柔性移动多孔网的厚度，并在下头的操作表面上采用气夹，以保持网与测量表面物理接触。 当网状物通过夹具牢固地固定时，建立的真空度表示膜的孔隙率。 当压缩空气在给定的操作压力下被供应到真空发生器时，可以从真空压力测量推断出通过幅材的气流速率。 通过膜的气流速率以及膜的孔隙率与真空度有关。 没有必要测量通过膜的气流。 从真空压力测量，膜的渗透性也可以通过与经验数据的相关性来确定。 厚度测量通过光学三角测量和感应接近度测量来实现。

公开(公告)号：US20120049070A1

公开(公告)日：2012-03-01

申请号：US12862733

申请日：2010-08-24

Applicant: Payam Mousavi ,  Steven Dodge ,  Frank Martin Haran ,  Stephane Savard ,  David Jez ,  Stuart James Heath

Inventor： Payam Mousavi ,  Steven Dodge ,  Frank Martin Haran ,  Stephane Savard ,  David Jez ,  Stuart James Heath

IPC: G01J5/54 ,  G01J3/28

CPC classification number: G01J3/42 ,  D21F7/06 ,  D21G9/0009 ,  G01B11/0625 ,  G01J3/28 ,  G01J3/2889 ,  G01N21/3559 ,  G01N21/3586 ,  G01N21/86 ,  G01N2021/8663

Abstract: An apparatus for incorporation into time-domain spectroscopy systems that creates a continuous reference whereby a sample pulses' phase and amplitude can be tracked and corrected employs a beam splitter to generate sample and reference pulses. A detector is positioned for receiving the reference radiation pulses that do not interact with the sample. The same detector is also positioned for receiving the sample radiation pulses that emerge from the sample. The apparatus can be readily implemented by being configured between the emitter and detector of a terahertz time-domain spectrometer. The reference pulse is used to trace the changes in time and amplitude of the sample pulse. Since any changes in the reference pulse will most likely manifest in the sample pulse, the reference pulse is monitored and used to correct the sample pulse and thereby reduce the effects of jitter.

Abstract translation: 一种用于结合到时域光谱系统中的装置，其创建连续参考，由此可以跟踪和校正采样脉冲的相位和幅度，使用分束器来产生采样和参考脉冲。 定位检测器用于接收不与样品相互作用的参考辐射脉冲。 相同的检测器也被定位成用于接收从样品中出现的样品辐射脉冲。 该装置可以通过配置在太赫兹时域光谱仪的发射极和检测器之间来容易地实现。 参考脉冲用于跟踪采样脉冲的时间和幅度的变化。 由于参考脉冲中的任何变化将最有可能体现在采样脉冲中，所以监视参考脉冲并用于校正采样脉冲，从而减少抖动的影响。

公开(公告)号：US08760669B2

公开(公告)日：2014-06-24

申请号：US13250347

申请日：2011-09-30

Applicant: Stuart James Heath ,  Michael Kon Yew Hughes ,  Graham Duck

Inventor： Stuart James Heath ,  Michael Kon Yew Hughes ,  Graham Duck

IPC: G01B11/28

CPC classification number: G01B11/06 ,  D21F7/06

Abstract: Dual mounting head scanner system measures the thickness of a flexible continuous moving web such as paper by employing an optical senor positioned in the upper head to determine the distance between the optical sensor and the upper surface of the paper while a displacement sensor positioned in the lower head determines the distance between the displacement sensor, which includes an RF coil, and a reference surface on the upper head. An air clamp and vacuum source assembly on the operative surface of the lower head maintains the moving web in physical contact with a measurement surface that is incorporated in the operative surface. The optical sensor directs incident radiation onto the web at the measurement surface. Thermal isolation of the two sensors eliminates thermal interactions.

Abstract translation: 双重安装头扫描仪系统通过使用位于上部头部中的光学传感器来测量柔性连续移动腹板（例如纸张）的厚度，以确定光学传感器与纸张上表面之间的距离，同时位于下方的位移传感器 头部确定包括RF线圈的位移传感器与上部头部上的参考表面之间的距离。 在下部头部的操作表面上的空气夹具和真空源组件将移动的网与保持在操作表面中的测量表面物理接触。 光学传感器将入射辐射引导到测量表面上的幅材上。 两个传感器的热隔离消除了热相互作用。

公开(公告)号：US20130083332A1

公开(公告)日：2013-04-04

申请号：US13250347

申请日：2011-09-30

Applicant: Stuart James Heath ,  Michael Kon Yew Hughes ,  Graham Duck

Inventor： Stuart James Heath ,  Michael Kon Yew Hughes ,  Graham Duck

IPC: G01B11/06 ,  G01R27/26

CPC classification number: G01B11/06 ,  D21F7/06

Abstract: Dual mounting head scanner system measures the thickness of a flexible continuous moving web such as paper by employing an optical senor positioned in the upper head to determine the distance between the optical sensor and the upper surface of the paper while a displacement sensor positioned in the lower head determines the distance between the displacement sensor, which includes an RF coil, and a reference surface on the upper head. An air clamp and vacuum source assembly on the operative surface of the lower head maintains the moving web in physical contact with a measurement surface that is incorporated in the operative surface. The optical sensor directs incident radiation onto the web at the measurement surface. Thermal isolation of the two sensors eliminates thermal interactions.

Abstract translation: 双重安装头扫描仪系统通过使用位于上部头部中的光学传感器来测量柔性连续移动腹板（例如纸张）的厚度，以确定光学传感器与纸张上表面之间的距离，同时位于下方的位移传感器 头部确定包括RF线圈的位移传感器与上部头部上的参考表面之间的距离。 在下部头部的操作表面上的空气夹具和真空源组件将移动的网与保持在操作表面中的测量表面物理接触。 光学传感器将入射辐射引导到测量表面上的幅材上。 两个传感器的热隔离消除了热相互作用。

公开(公告)号：US08378304B2

公开(公告)日：2013-02-19

申请号：US12862733

申请日：2010-08-24

Applicant: Payam Mousavi ,  Steven Dodge ,  Frank Martin Haran ,  Stephane Savard ,  David Jez ,  Stuart James Heath

Inventor： Payam Mousavi ,  Steven Dodge ,  Frank Martin Haran ,  Stephane Savard ,  David Jez ,  Stuart James Heath

IPC: G01J5/02

CPC classification number: G01J3/42 ,  D21F7/06 ,  D21G9/0009 ,  G01B11/0625 ,  G01J3/28 ,  G01J3/2889 ,  G01N21/3559 ,  G01N21/3586 ,  G01N21/86 ,  G01N2021/8663

Abstract: An apparatus for incorporation into time-domain spectroscopy systems that creates a continuous reference whereby a sample pulses' phase and amplitude can be tracked and corrected employs a beam splitter to generate sample and reference pulses. A detector is positioned for receiving the reference radiation pulses that do not interact with the sample. The same detector is also positioned for receiving the sample radiation pulses that emerge from the sample. The apparatus can be readily implemented by being configured between the emitter and detector of a terahertz time-domain spectrometer. The reference pulse is used to trace the changes in time and amplitude of the sample pulse. Since any changes in the reference pulse will most likely manifest in the sample pulse, the reference pulse is monitored and used to correct the sample pulse and thereby reduce the effects of jitter.

Abstract translation: 一种用于结合到时域光谱系统中的装置，其创建连续参考，由此可以跟踪和校正采样脉冲的相位和幅度，使用分束器来产生采样和参考脉冲。 定位检测器用于接收不与样品相互作用的参考辐射脉冲。 相同的检测器也被定位成用于接收从样品中出现的样品辐射脉冲。 该装置可以通过配置在太赫兹时域光谱仪的发射极和检测器之间来容易地实现。 参考脉冲用于跟踪采样脉冲的时间和幅度的变化。 由于参考脉冲中的任何变化将最有可能体现在采样脉冲中，所以监视参考脉冲并用于校正采样脉冲，从而减少抖动的影响。