Thickness measurement of full field soap bubble film in real time based on large lateral shearing displacement interferometry

2012 ◽  
Author(s):  
Wei Lv ◽  
Huai-chun Zhou ◽  
Jin-rong Zhu
Keyword(s):  
Real Time ◽  
Thickness Measurement ◽  
Soap Bubble ◽  
Full Field ◽  
Lateral Shearing

scholarly journals Full-field thickness measurement of ultrathin liquid film in receding contact-induced nano-channel using surface plasmon resonance

2018 ◽  
Vol 26 (16) ◽  
pp. 20975 ◽  
Author(s):  
Iltai (Isaac) Kim ◽  
Sokwon Paik ◽  
Yang Bae Jeon ◽  
Jae Sung Park ◽  
Hyunjung Kim ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Liquid Film ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Thickness Measurement ◽  
Full Field ◽  
Nano Channel ◽  
Receding Contact

scholarly journals Full-Field Viscoelastic Inflation Response of Bovine Cornea

2008 ◽  
Author(s):  
B. L. Boyce ◽  
T. D. Nguyen ◽  
R. E. Jones
Keyword(s):  
Real Time ◽  
Experimental Studies ◽  
Time Dependent ◽  
Full Field ◽  
3 Dimensional ◽  
Displacement Mapping ◽  
Mapping Tool ◽  
Unique Approach ◽  
In Vivo Characterization

Most previous experimental studies and mechanical cornea models have ignored time-dependence of the cornea’s modulus, with only a few notable exceptions [1–3]. The purpose of the present work was to evaluate the time-dependent properties of cornea tissue independent of scleral contributions in a condition that is as physiologically-relevant as possible without resorting to costly and difficult in vivo characterization. A non-contact 3-dimensional displacement mapping tool was employed to image the entire deformation field across the entire cornea in real-time during pressurization. Unlike prior inflation-based studies, the present study’s unique approach permits dynamic real-time full-field mapping of deformation during inflation for the examination of viscoelasticity, isotropy, and homogeneity.

scholarly journals A Real-Time Peak Extraction Algorithm for Dynamic Displacement Measurement Based on Spectral Confocal Microscopy

2021 ◽  
Vol 2112 (1) ◽  
pp. 012015
Author(s):  
Lijia Liu ◽  
Hua Ma ◽  
Zhendong Shi ◽  
Jinxi Bai ◽  
lin Zhang
Keyword(s):  
Confocal Microscopy ◽  
Real Time ◽  
Zero Point ◽  
Thickness Measurement ◽  
Displacement Measurement ◽  
Calculation Algorithm ◽  
Time Dynamic ◽  
Field Programmable ◽  
Important Position ◽  
Peak Value

Abstract Spectral confocal is widely used in various fields such as topography detection, roughness measurement, thickness measurement, for its advantages ability in displacement measurement. Developed from confocal microscopy, the spectral confocal microscopy greatly improves the efficiency of displacement measurement because there is no need for longitudinal scanning, In other words, we need to obtain the wavelength information corresponding to the peak point of the spectral signal, which is called peak abscissa but not the peak value. Therefore, Accurate and efficient peak abscissa calculation algorithm occupies an important position in displacement monitoring based on spectral confocal. However, the existing methods are too complex to apply to real-time dynamic online detection, for they usually focus on determining the peak value by means of curve fitting and peak extraction. In this paper, we proposed an efficient and accurate peak abscissa calculation method by shifting, difference, linear fitting, zero point and peak abscissa calculation (SDLZ). Compared with the Gaussian fitting method, the results demonstrate that the SDLZ can greatly improve efficiency, can be applied to field programmable gate array microcontrollers, with high measurement accuracy, providing key solutions for equipment needs.

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