Refractive index based measurements

Henrik Schiøtt Sørensen; Thomas Martini Jørgensen

Refractive index based measurements

Henrik Schiøtt Sørensen (Inventor), Thomas Martini Jørgensen (Inventor)

Department of Photonics Engineering

Research output: Patent

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.

Original language	English
IPC	G01N21/85
Patent number	WO2014147090
Filing date	25/09/2014
Country	International Bureau of the World Intellectual Property Organization (WIPO)
Priority date	21/03/2013
Priority number	EP20130160469
Publication status	Published - 2014

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title = "Refractive index based measurements",

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.",

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AB - 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.

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