An optical beam deflection based system for multi-axis out-of-plane motion measurement at multiple points

2020 ◽  
Vol 91 (12) ◽  
pp. 126101
Author(s):  
P. Piyush ◽  
G. R. Jayanth
Keyword(s):  
Plane Motion ◽  
Optical Beam ◽  
Beam Deflection ◽  
Multiple Points ◽  
Motion Measurement ◽  
Out Of Plane

A two-axis in-plane motion measurement system based on optical beam deflection

2013 ◽  
Vol 84 (10) ◽  
pp. 105001 ◽  
Author(s):  
R. Sriramshankar ◽  
R. Sri Muthu Mrinalini ◽  
G. R. Jayanth
Keyword(s):  
Measurement System ◽  
Plane Motion ◽  
Optical Beam ◽  
Beam Deflection ◽  
Motion Measurement

Development of multi-environment dual-probe atomic force microscopy system using optical beam deflection sensors with vertically incident laser beams

2013 ◽  
Vol 84 (8) ◽  
pp. 083701 ◽  
Author(s):  
Eika Tsunemi ◽  
Kei Kobayashi ◽  
Noriaki Oyabu ◽  
Masaharu Hirose ◽  
Yoshiko Takenaka ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Optical Beam ◽  
Laser Beams ◽  
Beam Deflection ◽  
Incident Laser ◽  
Force Microscopy ◽  
Atomic Force ◽  
Dual Probe

Multi-Probe Atomic Force Microscopy with Optical Beam Deflection Method

2007 ◽  
Vol 46 (8B) ◽  
pp. 5636-5638 ◽  
Author(s):  
Eika Tsunemi ◽  
Nobuo Satoh ◽  
Yuji Miyato ◽  
Kei Kobayashi ◽  
Kazumi Matsushige ◽  
...  
Keyword(s):  
Atomic Force Microscopy ◽  
Optical Beam ◽  
Beam Deflection ◽  
Force Microscopy ◽  
Atomic Force

Out-of-Plane Motion Effects in Microscopic Particle Image Velocimetry

2003 ◽  
Vol 125 (5) ◽  
pp. 895-901 ◽  
Author(s):  
Michael G. Olsen ◽  
Chris J. Bourdon
Keyword(s):  
Particle Image Velocimetry ◽  
Particle Image ◽  
Laser Sheet ◽  
Plane Motion ◽  
Entire Volume ◽  
Measurement Volume ◽  
Microscopic Particle ◽  
Image Velocimetry ◽  
Out Of Plane ◽  
Signal Peak

In microscopic particle image velocimetry (microPIV) experiments, the entire volume of a flowfield is illuminated, resulting in all of the particles in the field of view contributing to the image. Unlike in light-sheet PIV, where the depth of the measurement volume is simply the thickness of the laser sheet, in microPIV, the measurement volume depth is a function of the image forming optics of the microscope. In a flowfield with out-of-plane motion, the measurement volume (called the depth of correlation) is also a function of the magnitude of the out-of-plane motion within the measurement volume. Equations are presented describing the depth of correlation and its dependence on out-of-plane motion. The consequences of this dependence and suggestions for limiting its significance are also presented. Another result of the out-of-plane motion is that the height of the PIV signal peak in the correlation plane will decrease. Because the height of the noise peaks will not be affected by the out-of-plane motion, this could lead to erroneous velocity measurements. An equation is introduced that describes the effect of the out-of-plane motion on the signal peak height, and its implications are discussed. Finally, the derived analytical equations are compared to results calculated using synthetic PIV images, and the agreement between the two is seen to be excellent.

Vibrational potentials of the low frequency out‐of‐plane motion in the ground and excited singlet electronic states of 9,10‐dihydrophenanthrene

1992 ◽  
Vol 96 (10) ◽  
pp. 7229-7236 ◽  
Author(s):  
Marek Z. Zgierski ◽  
Francesco Zerbetto ◽  
Young‐Dong Shin ◽  
Edward C. Lim
Keyword(s):  
Low Frequency ◽  
Electronic States ◽  
Plane Motion ◽  
Excited Singlet ◽  
Out Of Plane
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