Observation of Earth's oscillations by the laser interferometric method

2006 ◽  
Author(s):  
S. N. Bagayev ◽  
V. A. Orlov ◽  
A. V. Pyatigorets
Keyword(s):  
Interferometric Method ◽  
Laser Interferometric

Laser interferometric method for determination of elastoplastic strain field

2003 ◽  
Author(s):  
Shibin Wang ◽  
Jingwei Tong ◽  
Mario Cottron ◽  
Linan Li ◽  
Zhiyong Wang
Keyword(s):  
Strain Field ◽  
Elastoplastic Strain ◽  
Interferometric Method ◽  
Laser Interferometric

Laser interferometric method for determining the carrier diffusion length in semiconductors

2015 ◽  
Vol 49 (9) ◽  
pp. 1119-1124 ◽  
Author(s):  
V. V. Manukhov ◽  
A. B. Fedortsov ◽  
A. S. Ivanov
Keyword(s):  
Diffusion Length ◽  
Interferometric Method ◽  
Carrier Diffusion ◽  
Laser Interferometric

Determination of a micromirror angular rotation using laser interferometric method

2001 ◽  
Vol 195 (1-4) ◽  
pp. 71-77 ◽  
Author(s):  
C.J. Tay ◽  
C. Quan ◽  
S.H. Wang ◽  
H.M. Shang
Keyword(s):  
Angular Rotation ◽  
Interferometric Method ◽  
Laser Interferometric

scholarly journals Flaw Detection and Characterization Using Shearography

1997 ◽  
Author(s):  
Siew-Lok Toh ◽  
Fook-Siong Chau
Keyword(s):  
High Speed ◽  
Flaw Detection ◽  
Electronic Version ◽  
Interferometric Method ◽  
Full Field ◽  
Computer Image Processing ◽  
Before And After ◽  
Fringe Patterns ◽  
Laser Interferometric ◽  
High Pass

Shearography is a laser interferometric method developed originally for full field observation of surface strains of components. Since flaws usually induce strain concentrations around them, shearography can be employed to detect the flaws. Conventional shearography involves exposing high resolution films before and after the components are loaded. The exposed films are developed and then viewed via a high-pass filtering optical setup. Though the images obtained are good, this method is time-consuming. With the advent of high-speed computers, associated sophisticated imaging hardware and software, the Digital Speckle Shearing Interferometry (DSSI) method which employs a CCD (charged-coupled device) camera and computer image processing to produce the interferometric fringe patterns has been developed. In contrast with the conventional shearography, the electronic version does not require any film and is faster. The techniques are used to detect and characterise (a) flaws simulating delaminations in composites and (b) thinning in pipes.

A Laser Interferometric Study of Corrosion of Coated and Uncoated Metals I. — Technique Standardization with the Zn/ZnSO4/Zn System

CORROSION ◽  
1978 ◽  
Vol 34 (8) ◽  
pp. 262-268 ◽  
Author(s):  
R. N. O'BRIEN ◽  
H. KOLNY
Keyword(s):  
Corrosion Protection ◽  
Electrochemical Potential ◽  
Interferometric Method ◽  
Epoxy Primer ◽  
Interferometric Study ◽  
Laser Interferometric ◽  
True Values ◽  
General Range

Abstract A laser interferometric method of detecting holidays in and evaluating the corrosion protection of epoxy primer or other coatings was tested in the well known system Zn/ZnSO4/Zn. An electrochemical potential in the general range of corrosion couple values was applied, first to uncoated electrodes, then to coated anodes with measured, prepared holidays. The method is shown to give easily interpretable, visually obvious qualitative results. General methods of calculating good relative values and less accurate true values of corrosion currents are evolved.

scholarly journals Application of the Laser Interferometry in Studies of Biophysical Model Systems

2013 ◽  
Vol 36 (1) ◽  
pp. 1-5
Author(s):  
Sławomir Wąsik
Keyword(s):  
Concentration Field ◽  
Laser Interferometry ◽  
Model Systems ◽  
Water Phase ◽  
Biophysical Model ◽  
Diffusion Kinetics ◽  
Interferometric Method ◽  
Interferometry Method ◽  
Laser Interferometric ◽  
Kinetics Of

Abstract In this paper some selected applications of laser interferometry method in studies of biophysical model systems are presented. With the aid of a laser interferometric method, specific experiments were performed, which confirm that the gravitational field significantly modifies the amount of transported substance and affects the concentration profiles as well as the time evolution of the concentration field. The laser interferometry was also used to investigation of diffusion of antibiotics (ciprofloxacin or ampicillin) into the water phase from mixtures of neutral or negatively charged liposomes, and antibiotic-liposome interactions. Differences in the diffusion kinetics of ciprofloxacin and ampicillin from liposomal solutions to the water phase were observed. Moreover, the amount of ampicillin and ciprofloxacin released from the anionic liposomal phase was higher than that from the neutral one.

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