Refractive index based measurements

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

Research output: Patent


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 languageEnglish
Patent numberWO2014147090
Filing date25/09/2014
Country/TerritoryInternational Bureau of the World Intellectual Property Organization (WIPO)
Priority date21/03/2013
Priority numberEP20130160469
Publication statusPublished - 2014


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