A two-bucket phase-stepped shearing speckle interferometer: Why does it work?

2003 ◽  
Author(s):  
Peter A. A. M. Somers ◽  
Hedser H. van Brug ◽  
Joseph J. Braat
Keyword(s):  
Speckle Interferometer

scholarly journals Development of a Compound Speckle Interferometer for Precision Three-Degree-of-Freedom Displacement Measurement

Sensors ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 1828
Author(s):  
Hung-Lin Hsieh ◽  
Bo-Yen Sun
Keyword(s):  
Speckle Interferometry ◽  
Degree Of Freedom ◽  
Heterodyne Interferometry ◽  
Beam Splitting ◽  
Speckle Interferometer ◽  
Real World Applications ◽  
Three Degree Of Freedom ◽  
Contact Displacement ◽  
Displacement Measurements ◽  
Measurement Capabilities

In this study, a compound speckle interferometer for measuring three-degree-of-freedom (3-DOF) displacement is proposed. The system, which combines heterodyne interferometry, speckle interferometry and beam splitting techniques, can perform precision 3-DOF displacement measurements, while still having the advantages of high resolution and a relatively simple configuration. The incorporation of speckle interferometry allows for non-contact displacement measurements by detecting the phase of the speckle interference pattern formed from the convergence of laser beams on the measured rough surface. Experiments were conducted to verify the measurement capabilities of the system, and the results show that the proposed system has excellent measurement capabilities suitable for future real-world applications.

Heterodyne speckle interferometer for full-field velocity profile measurements of a vibrating membrane by electronic scanning

2007 ◽  
Vol 45 (6) ◽  
pp. 677-683 ◽  
Author(s):  
Mauro V. Aguanno ◽  
Fereydoun Lakestani ◽  
Maurice P. Whelan ◽  
Michael J. Connelly
Keyword(s):  
Velocity Profile ◽  
Full Field ◽  
Speckle Interferometer ◽  
Field Velocity ◽  
Vibrating Membrane

scholarly journals Speckle Interferometry at the U. S. Naval Observatory

1992 ◽  
Vol 135 ◽  
pp. 583-585
Author(s):  
Charles E. Worley ◽  
Geoffrey G. Douglass
Keyword(s):  
Speckle Interferometry ◽  
State University ◽  
Naval Observatory ◽  
Speckle Interferometer ◽  
Georgia State University ◽  
The One

AbstractA new speckle interferometer began operation with the 66-cm refractor in Oct. 1990. The interferometer is an improved version of the one operated by CHARA at Georgia State University. We describe the instrument, its calibration, and first observational results.

Soap film analysis by speckle interferometer

2003 ◽  
Author(s):  
Myrian C. Tebaldi ◽  
Luciano Angel ◽  
Marcelo Trivi ◽  
Nestor A. Bolognini
Keyword(s):  
Soap Film ◽  
Film Analysis ◽  
Speckle Interferometer

Real-time measurement of microcantilever displacement based on Linnik microscopic speckle interferometer

2018 ◽  
Vol 57 (12) ◽  
pp. 1
Author(s):  
Chenjia Gao ◽  
Zhan Gao ◽  
Xu Wang ◽  
Zihui Liu ◽  
Chuqian Zhong ◽  
...  
Keyword(s):  
Real Time ◽  
Time Measurement ◽  
Real Time Measurement ◽  
Speckle Interferometer ◽  
Displacement Based

scholarly journals Mobile speckle interferometer in the long-wave infrared for aeronautical nondestructive testing in field conditions

2013 ◽  
Vol 52 (10) ◽  
pp. 101903 ◽  
Author(s):  
Jean-François Vandenrijt ◽  
Cédric Thizy ◽  
Igor Alexeenko ◽  
Giancarlo Pedrini ◽  
Jonathan Rochet ◽  
...  
Keyword(s):  
Nondestructive Testing ◽  
Field Conditions ◽  
Long Wave ◽  
Speckle Interferometer ◽  
Long Wave Infrared
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