公开(公告)号：WO2012024771A3

公开(公告)日：2012-11-29

申请号：PCT/CA2011000938

申请日：2011-08-19

Applicant: HONEYWELL ASCA INC ,  MOUSAVI PAYAM ,  DODGE STEVEN ,  HARAN FRANK MARTIN ,  SAVARD STEPHANE ,  JEZ DAVID ,  HEATH STUART JAMES

Inventor： MOUSAVI PAYAM ,  DODGE STEVEN ,  HARAN FRANK MARTIN ,  SAVARD STEPHANE ,  JEZ DAVID ,  HEATH STUART JAMES

IPC: G01J3/42 ,  G01J3/28

CPC classification number: G01J3/42 ,  D21F7/06 ,  D21G9/0009 ,  G01B11/0625 ,  G01J3/28 ,  G01J3/2889 ,  G01N21/3559 ,  G01N21/3586 ,  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：CA2863711A1

公开(公告)日：2013-08-15

申请号：CA2863711

申请日：2013-01-24

Applicant: HONEYWELL ASCA INC

Inventor： SAVARD STEPHANE ,  KROLAK ADAM

IPC: G01B11/06 ,  G01B15/02

Abstract: An analytical model simulates the propagation of radiation through a coated continuous web where layer thickness and refractive index, as variables, determine the speed and direction of transmitted radiation. The model predicts characteristics of transmitted radiation based on characteristics of incident radiation and initially assigned values for layer thicknesses. Coating thickness(s) are ascertained in a process whereby incident radiation of known characteristics is directed onto a coated web and thereafter, actual measurements of transmitted radiation are compared to predicted characteristics. Using a fitting algorithm, the assigned thickness(es) of the layer(s) of the model are adjusted and the process repeated until the actual and predicted values are within desired limits at which time, the assigned thickness(es) represent the measured calipers. Radiation measurements are obtained using terahertz time-domain spectroscopy apparatus that creates a continuous reference whereby a sample pulses' phase and amplitude can be tracked and corrected.

公开(公告)号：CA2808868A1

公开(公告)日：2012-03-01

申请号：CA2808868

申请日：2011-08-19

Applicant: HONEYWELL ASCA INC

Inventor： MOUSAVI PAYAM ,  DODGE STEVEN ,  HARAN FRANK MARTIN ,  SAVARD STEPHANE ,  JEZ DAVID ,  HEATH STUART JAMES

IPC: G01J3/42 ,  G01J3/28

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.

公开(公告)号：CA2863711C

公开(公告)日：2019-09-10

申请号：CA2863711

申请日：2013-01-24

Applicant: HONEYWELL ASCA INC

Inventor： SAVARD STEPHANE ,  KROLAK ADAM

IPC: G01B11/06 ,  G01B15/02

Abstract: An analytical model simulates the propagation of radiation through a coated continuous web where layer thickness and refractive index, as variables, determine the speed and direction of transmitted radiation. The model predicts characteristics of transmitted radiation based on characteristics of incident radiation and initially assigned values for layer thicknesses. Coating thickness(s) are ascertained in a process whereby incident radiation of known characteristics is directed onto a coated web and thereafter, actual measurements of transmitted radiation are compared to predicted characteristics. Using a fitting algorithm, the assigned thickness(es) of the layer(s) of the model are adjusted and the process repeated until the actual and predicted values are within desired limits at which time, the assigned thickness(es) represent the measured calipers. Radiation measurements are obtained using terahertz time-domain spectroscopy apparatus that creates a continuous reference whereby a sample pulses' phase and amplitude can be tracked and corrected.

公开(公告)号：EP2815206A4

公开(公告)日：2015-09-09

申请号：EP13746971

申请日：2013-01-24

Applicant: HONEYWELL ASCA INC

Inventor： SAVARD STEPHANE ,  KROLAK ADAM

IPC: G01B11/06 ,  G01B15/02 ,  G01N21/3581 ,  G01N21/3586

CPC classification number: G01B11/06 ,  G01B11/0625 ,  G01B11/0691 ,  G01N21/3581 ,  G01N21/3586 ,  G01N21/8422 ,  G01N21/86 ,  G01N21/8851 ,  G01N21/93