公开(公告)号：US20160091421A1

公开(公告)日：2016-03-31

申请号：US14888391

申请日：2014-03-18

Applicant: TECHNICAL UNIVERSITY OF DENMARK

Inventor： Henrik Schiøtt SØRENSEN ,  Thomas Martini JØRGENSEN

IPC: G01N21/45

CPC classification number: G01N21/45 ,  G01N21/85 ,  G01N2201/0231

Abstract: In a method for performing a refractive index based measurement of a property of a fluid such as chemical composition or temperature, a chirp in the local spatial frequency of interference fringes of an interference pattern is reduced by mathematical manipulation of the recorded light intensity in the interference pattern or by the physical positioning and arrangement of a detector used for capturing the interference pattern.

Abstract translation: 在用于进行基于折射率的诸如化学成分或温度等流体性质的测量的方法中，干涉图案的干涉条纹的局部空间频率中的啁啾通过数学处理干涉中记录的光强度而被减少 图案或通过用于捕获干涉图案的检测器的物理定位和布置。

公开(公告)号：US20160077000A1

公开(公告)日：2016-03-17

申请号：US14888396

申请日：2014-03-18

Applicant: TECHNICAL UNIVERSITY OF DENMARK

Inventor： Henrik Schiøtt SØRENSEN ,  Thomas Martini JØRGENSEN

IPC: G01N21/45

CPC classification number: G01N21/45 ,  G01K11/00 ,  G01N21/0303 ,  G01N21/05 ,  G01N21/85

Abstract: In a method for performing a refractive index based measurement of a property of a fluid such as chemical composition or temperature by observing an apparent angular shift in an interference fringe pattern produced by back or forward scattering interferometry, ambiguities in the measurement caused by the apparent shift being consistent with one of a number of numerical possibilities for the real shift which differ by 2n are resolved by combining measurements performed on the same sample using light paths therethrough of differing lengths.

Abstract translation: 在通过观察由后向或前向散射干涉测量产生的干涉条纹图案中的表观角位移来进行基于折射率的诸如化学组成或温度的流体性质的测量的方法中，由表观偏移引起的测量中的模糊度 与通过不同长度的光通路组合在相同样品上进行的测量来解析差异为2n的实际偏移的数量可能性之一。