Temporal phase shifting method using acoustic-optic modulated stroboscopic interferometer (AOMSI) for characterization of microstructures

2009 ◽  
Author(s):  
Davoud Mohammadalizadeh ◽  
Muthukumaran Packirisamy ◽  
Narayanswamy Sivakumar
Keyword(s):  
Phase Shifting ◽  
Temporal Phase ◽  
Phase Shifting Method

Static characterization of microstructures using AOMSI and temporal phase-shifting (TPS) methods

2012 ◽  
Vol 18 (5) ◽  
pp. 661-666
Author(s):  
Davoud Jahani ◽  
Sivakumar Narayanswamy ◽  
Muthukumaran Packirisamy ◽  
Murali Manohohar Pai
Keyword(s):  
Phase Shifting ◽  
Temporal Phase

New temporal phase-shifting technique utilizing stroboscopy for static characterization of microstructures

Measurement ◽  
2010 ◽  
Vol 43 (1) ◽  
pp. 135-143 ◽  
Author(s):  
Davoud Mohammdalizadeh ◽  
Murali Manohohar Pai ◽  
Narayanswamy Sivakumar ◽  
Muthukumaran Packirisamy
Keyword(s):  
Phase Shifting ◽  
Temporal Phase ◽  
Phase Shifting Technique

scholarly journals Birefringence measurement by four-step phase-shifting method on triple-polarizer plane polariscope

2013 ◽  
Vol 52 (4) ◽  
pp. 040501 ◽  
Author(s):  
Xusheng Zhang ◽  
Chuan He ◽  
Haoyu Wang
Keyword(s):  
Phase Shifting ◽  
Phase Shifting Method

Electrical Dimension Characterization of Binary and Alternating Aperture Phase-Shifting Masks

2002 ◽  
Author(s):  
Martin McCallum ◽  
Stewart Smith ◽  
Alan Lissimore ◽  
Anthony J. Walton ◽  
J. Tom M. Stevenson
Keyword(s):  
Phase Shifting

Phase-shifting method with a normal polariscope

1999 ◽  
Vol 38 (28) ◽  
pp. 5931 ◽  
Author(s):  
Anand Asundi ◽  
Liu Tong ◽  
Chai Gin Boay
Keyword(s):  
Phase Shifting ◽  
Phase Shifting Method

scholarly journals An Error-Reduction Method for Temporal Phase Unwrapping Based on Double Three-Step Phase-Shifting and Least-Squares Fitting

2012 ◽  
Vol 6-7 ◽  
pp. 76-81
Author(s):  
Yong Liu ◽  
Ding Fa Huang ◽  
Yong Jiang
Keyword(s):  
Least Squares ◽  
Reduction Method ◽  
Intermediate Phase ◽  
Error Reduction ◽  
Phase Unwrapping ◽  
Phase Shifting ◽  
Surface Measurement ◽  
Acquisition Time ◽  
Least Squares Fitting ◽  
Temporal Phase

Phase-shifting interferometry on structured light projection is widely used in 3-D surface measurement. An investigation shows that least-squares fitting can significantly decrease random error by incorporating data from the intermediate phase values, but it cannot completely eliminate nonlinear error. This paper proposes an error-reduction method based on double three-step phase-shifting algorithm and least-squares fitting, and applies it on the temporal phase unwrapping algorithm using three-frequency heterodyne principle. Theoretical analyses and experiment results show that this method can greatly save data acquisition time and improve the precision.

A flexible phase-shifting method with absolute phase marker retrieval

Measurement ◽  
2012 ◽  
Vol 45 (1) ◽  
pp. 101-108 ◽  
Author(s):  
Haihua Cui ◽  
Wenhe Liao ◽  
Ning Dai ◽  
Xiaosheng Cheng
Keyword(s):  
Phase Shifting ◽  
Absolute Phase ◽  
Phase Shifting Method
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