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Method for acquiring the characteristic parameter of the dual-spiral moiré fringes

✍ Scribed by Huang, Lei; Su, Xianyu

Book ID
115430623
Publisher
Optical Society of America
Year
2008
Tongue
English
Weight
342 KB
Volume
33
Category
Article
ISSN
0146-9592

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## Abstract In an amplitude grating system of small grid pitch, the diffractive effect is distinctive. Its energy will be about 10–40% of the total energy. The diffractive light is the root cause of deterioration of the contrast and sinusoidal property of the Moiré signal. The relations between the