Dynamic measurement by digital holographic interferometry based on complex phasor method

C. J. Tay, C. Quan, Wen Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

11 Citations (Scopus)

Abstract

In this paper, complex phasor (CP) method is employed in digital holographic interferometry. Unlike commonly used digital phase subtraction (DPS), the proposed technique processes a CP instead of phase. It is shown that the results obtained by directly filtering the phase produce large errors. It is demonstrated that the phase is not a signal but rather a property of a signal. In addition, the results obtained by the CP method are also compared with those obtained by conventional sine/cosine transformation method.
Original languageEnglish
Pages (from-to)172-180
Number of pages9
JournalOptics and Laser Technology
Volume41
Issue number2
DOIs
Publication statusPublished - 1 Jan 2009
Externally publishedYes

Keywords

  • Complex phasor
  • Digital holographic interferometry
  • Dynamic measurement

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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