Interferometrischer Laser-Doppler-Feldsensor zur Messung der Geschwindigkeitsverteilung von komplexen Strömungen

Translated title of the contribution: Interferometric laser doppler field sensor for the measurement of the velocity distribution of complex flows

Christian Bayer, Andreas Voigt, Katsuaki Shirai, Lars Bütter, Jürgen Czarske

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We present a novel interferometric sensor based on the laser Doppler technique as well as appropriate concepts for signal processing. The sensor allows the measurement of spatially resolved velocity profiles inside laminar and turbulent flows with micrometer resolution. Therefore it is well suited for research in turbulence, micro fluidics, and flow rate measurement. The combination of two such profile sensors enables to measure all three velocity components within a two-dimensional area without the use of a camera. Compared to image processing methods the proposed principle achieves a lower measurement uncertainty of the velocity.

Translated title of the contributionInterferometric laser doppler field sensor for the measurement of the velocity distribution of complex flows
Original languageGerman
Pages (from-to)224-234
Number of pages11
JournalTechnisches Messen
Volume74
Issue number4
DOIs
Publication statusPublished - 2007 Apr 1
Externally publishedYes

Keywords

  • Frequency division multiplexing
  • Laser doppler anemometry
  • Signal recognition
  • Turbulent flows
  • Velocity profile
  • Wavelength division multiplexing

ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering

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