Uncertainty analysis of displacements measured by phase-shifting Moiré interferometry

2004 ◽  
Vol 237 (1-3) ◽  
pp. 25-36 ◽  
Author(s):  
Raúl R. Cordero ◽  
Ignacio Lira
Keyword(s):  
Uncertainty Analysis ◽  
Moiré Interferometry ◽  
Phase Shifting ◽  
Moire Interferometry

Full Field Joule Heating Measurement of Copper Plate Using Phase Shifting Moire´ Interferometry in Microscopic Scale

2009 ◽  
Author(s):  
Bicheng Chen ◽  
Cemal Basaran
Keyword(s):  
Joule Heating ◽  
Current Density ◽  
Moiré Interferometry ◽  
Phase Shifting ◽  
Moire Interferometry ◽  
Heating Effect ◽  
Full Field ◽  
Microscopic Scale ◽  
Joule Heating Effect ◽  
Heating Effects

Heat generated from Joule heating is an important factor in several failure mechanisms in microelectronic packaging (e.g. thermomigration, electromigration and etc) and large amount of the heat causes severe heat dissipation problem. It is further exaggerated by the continuous marching towards miniaturization of microelectronics. The techniques of measuring the Joule heating effects at the microscopic scale are quite limited especially for the full field measurement. Infrared microscopic imaging has been reported to measure the heat radiation by the Joule heating in the microscopic scale. Moire´ interferometry with phase shifting is a highly sensitive and a high resolution method to measure the in-plane full field strain. In this paper, it is demonstrated that the Joule heating effect can be measured by Moire´ interferometry with phase shifting at the microscopic scale. The copper sheet is used for the demonstration because of isotropic material property and well known thermal properties and parameters. The specimen was designed to minimize the out-of-plane strain and the strain caused by the thermal-structural effects. A finite element model was developed to verify the design of the structure of the specimen and the specimen was tested under different current density (input current from 0 to 24 A). Based on the research, a correlation relationship between the current density and the strain in two orthogonal directions (one in the direction of the current flow) was determined. The regression coefficients of the full field were analyzed. The experiment demonstrates the capability of measuring microscopic Joule heating effects by using Moire´ interferometry with phase shifting. The method can be further applied to the measurement of Joule heating effect in the microscopic solid structures in the electronic packaging devices.

Vibration error-compensation technique in phase shifting moiré interferometry

2017 ◽  
Vol 41 (3) ◽  
pp. 279-288
Author(s):  
K. Zhang ◽  
Q. Liu ◽  
C. Sun ◽  
P. Yang ◽  
Y. Tang ◽  
...  
Keyword(s):  
Error Compensation ◽  
Moiré Interferometry ◽  
Phase Shifting ◽  
Moire Interferometry ◽  
Compensation Technique ◽  
Vibration Error

Spatial-carrier phase shifting method of fringe analysis for moiré interferometry

1993 ◽  
Vol 28 (2) ◽  
pp. 79-88 ◽  
Author(s):  
C Y Poon ◽  
M Kujawinska ◽  
C Ruiz
Keyword(s):  
Carrier Phase ◽  
Field Measurements ◽  
Displacement Function ◽  
Moiré Interferometry ◽  
Phase Shifting ◽  
Moire Interferometry ◽  
Fringe Analysis ◽  
Automated Method ◽  
Phase Shifting Method ◽  
Carrier Phase Shifting

The theory of an automated fringe pattern analysis using the spatial-carrier phase shifting method for moiré interferometry is presented. The automated method is shown to provide a fast and accurate strain measurement over the whole field. Measurements on a brass specimen and a tapered laminated composite specimen are shown to highlight the efficiency and the capability of this technique for moiré interferometry. The filtering technique used to remove noise from the required displacement function is also presented.

scholarly journals Phase-shifting in achromatic moiré interferometry system

2007 ◽  
Vol 15 (16) ◽  
pp. 9970 ◽  
Author(s):  
Changwoon Han ◽  
Bongtae Han
Keyword(s):  
Moiré Interferometry ◽  
Phase Shifting ◽  
Moire Interferometry
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