Simple and accurate calibration system for Laser Doppler Velocimeters

Osama Terra, Haitham M. Hussein

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The calibration of Laser Doppler Velocimeters (LDVs) is of a great importance for the accurate measurement of the fluid flow rate and the speed of moving objects. In this paper, a simple, low-cost and portable calibration system for LDV is introduced. This system, which is based on a commercial optical chopper, can offer calibration uncertainty of (0.048%) (σ = 2) for velocities up to 1914 m/min and dynamic lengths of up to 15.4 km, which is better than the uncertainties reported by similar systems with a much complicated design. Therefore, this calibration system can be implemented easily by any calibration laboratory or even by national metrology institutes.

Original languageEnglish
Pages (from-to)733-739
Number of pages7
JournalOptik - International Journal for Light and Electron Optics
Volume179
DOIs
Publication statusPublished - Feb 2019
Externally publishedYes

Keywords

  • Calibration of Speed Measuring equipment
  • Laser Doppler Anemometer
  • Laser Doppler Velocimeter

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