ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Phase-shifting technique is an effect way to suppress the zero order diffraction and the conjugate term indigital holography. However the phase-shifting error will influence inevitably the evaluation precision in practiceoperation. In this paper, the deformation evaluation errors by means of two kinds of four-step phase-shiftingalgorithms, which are in common use in digital holography, are analyzed and compared by computer simulation.In addition, the phase-shifting errors may cumulate or not according to different phase-shifting techniques, andboth cases are considered in this paper. The results based on the digital in-line holography show that the twofour-step phase-shifting algorithms possess different sensitivity to the phase-shifting errors, and the preferable one,which is more immune to the phase-shifting errors, is educed in conclusion
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/52/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.326-328.27.pdf
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