Fourier analysis of phase-shifting algorithms for amplitude measurement of interference fringe

2017 ◽  
Vol 56 (15) ◽  
pp. 4353 ◽  
Author(s):  
Qi Wang
Keyword(s):  
Fourier Analysis ◽  
Interference Fringe ◽  
Phase Shifting ◽  
Amplitude Measurement

Fourier analysis of two-stage phase-shifting algorithms

2010 ◽  
Vol 27 (2) ◽  
pp. 276 ◽  
Author(s):  
Marta Miranda ◽  
Benito V. Dorrío
Keyword(s):  
Fourier Analysis ◽  
Phase Shifting ◽  
Two Stage

Quantitative Vibration Amplitude Measurement Using Stroboscopic Phase Shifting ESPI

2006 ◽  
Vol 321-323 ◽  
pp. 95-98 ◽  
Author(s):  
Hyun Chul Jung ◽  
Koung Suk Kim
Keyword(s):  
Vibration Amplitude ◽  
Natural Frequencies ◽  
Measurement Techniques ◽  
Phase Shifting ◽  
Mode Shapes ◽  
Ansys Analysis ◽  
Amplitude Measurement ◽  
Stroboscopic Illumination ◽  
Square Plate ◽  
Optical Vibration

The stroboscopic phase shifting ESPI (SPS-ESPI), one of the optical vibration amplitude measurement techniques, is presented. Although the general PS-ESPI can be used for quantitative deformation measurement of the object, this technique cannot measure the vibration amplitude with itself only. The phase change due to the vibration of the object cannot be calculated with general PS-ESPI correctly. Therefore, in order to solve this problem, the stroboscopic illumination must be introduced to the general PS-ESPI. This can be done by using a device called as AOM (Acousto-Optic Modulator). In this paper, SPS-ESPI is applied to measure the vibration amplitude of the square plate whose all edges were fixed. The natural frequencies and mode shapes are analyzed by using ANSYS. And the results obtained by using SPS-ESPI technique are compared with that of the ANSYS analysis. The vibration amplitude is measured by using SPS-ESPI quantitatively.

scholarly journals Spatial dual-orthogonal (SDO) phase-shifting algorithm by pre-recomposing the interference fringe

2017 ◽  
Vol 25 (15) ◽  
pp. 17446 ◽  
Author(s):  
Yi Wang ◽  
Bingbo Li ◽  
Liyun Zhong ◽  
Jindong Tian ◽  
Xiaoxu Lu
Keyword(s):  
Interference Fringe ◽  
Phase Shifting
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