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Transparent Liquid Concentration Measurement Device Based on Mach-Zehnder Interferometer

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A set of experimental devices for measuring the concentration of transparent liquids is designed based on Mach-Zehnder interferometer. A unique three-slot double wedge sample cell is designed and fabricated. The interference fringes formed by the beam passing through the measuring solution and the standard solution were collected and processed by computer vision. The concentration of the solution is obtained by comparing the fringes spacing obtained from each side of the sample cell. In this designment, the factors such as the wedge angle introduced by the Mach-Zehnder interferometer itself and the wedge angle introduced by the windows can be naturally eliminated. The sources of the measurement errors are analyzed, and the methods for improving the accuracy are proposed. This work provides a convenient method for measuring the refractive index and concentration of transparent solutions.

Original languageEnglish
Title of host publicationFifteenth International Conference on Information Optics and Photonics, CIOP 2024
EditorsYue Yang
PublisherSPIE
ISBN (Electronic)9781510686168
DOIs
StatePublished - 2024
Externally publishedYes
Event15th International Conference on Information Optics and Photonics, CIOP 2024 - Xi'an, China
Duration: 11 Aug 202415 Aug 2024

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume13418
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference15th International Conference on Information Optics and Photonics, CIOP 2024
Country/TerritoryChina
CityXi'an
Period11/08/2415/08/24

Keywords

  • Mach-Zehnder interferometer
  • computer vision
  • concentration
  • refractive index
  • three-slot double wedges sample cell

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