System of the phase tomography of optically anisotropic polycrystalline films of biological fluids

The purpose of this work is the authors’ attempt to identify the main phases of information transformation in measurement channels on the example of an optical measurement channel with microprocessor control. The authors include such phases: hardware implementation and analytical representation of an optical sensor`s converting functions and a current-to-voltage converter; based on the methods of experimental computer science, the converting functions and sensitivity are deduced, analytical dependences for estimation of a range of measurement are obtained. It is shown that the choice of information transmission type in the microprocessor measuring channel significantly affects the speed of the measuring channel. Based on the uncertainty in the form of entropy before and after measurements, the amount of information for measuring channels with optoelectronic sensors is estimated. The application of the results obtained in the work allows even at the design stage of physical and mathematical modeling to assess the basic static metrological characteristics of measuring channels, aimed at reducing the stage of development and debugging of hardware and software and standardization of their metrological characteristics.

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“…Therefore, the measurement result of the physical quantity

must be expected in the measurement range from

. Assume that the measurement result is equally likely to fall into any part of this range [ 45 , 46 , 47 ].…”

Section: Transmission and Evaluation Of The Measuring Information Amountmentioning

confidence: 99%

Information Conversion in Measuring Channels with Optoelectronic Sensors

Kukharchuk

Pavlov

Holodiuk

et al. 2021

Sensors

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“…This section contains the results of determining the strength of the Mueller-Maric method of reproducing the distribution of the magnitude of the CB of SF polycrystalline films by calculating the magnitude of a set of operational characteristicssensitivity, specificity and accuracy of the polarization tomography technique for all three groups of patients [12,21,22]. STstatistical moments 1-st -4-th order, which characterise the distributions of the CB.…”

Section: Information Analysis Of the Mueller-matrix Data Reconstructionmentioning

confidence: 99%

Differential Diagnostics of Aseptic and Septic Loosening of the Cup of the Endoprosthesis of the Artificial Hip Joint by the Methods of Polarisation Tomography

Ушенко

Olar

2019

IAPGOS

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Manuscript contains structural-logical scheme and analytical description of the differential diagnosis of aseptic and septic loosening of the artificial hip joint endoprosthesis using the methods of differential Mueller-matrix mapping of circular birefringence (CB) distributions of polycrystalline synovial films (SF) and results of determining the sensitivity, specificity and accuracy of the wavelet analysis method of differential Mueller-matrix mapping of the distributions of the CB values of polycrystalline films SF patients from the control group and groups with different severity of the hip joint pathology.

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“…; fluctuations in the parameters of laser beams due to atmospheric turbulence. Each of these groups of phenomena of the interaction of laser radiation with the atmosphere can be detected in the fields of both linear and nonlinear optics [10][11][12][13] . When analyzing the sequence of images of long laser paths, which change rapidly, there is a problem in determining the center of the beam.…”

Section: Introductionmentioning

confidence: 99%

“…When analyzing the sequence of images of long laser paths, which change rapidly, there is a problem in determining the center of the beam. Under the influence of various atmospheric phenomena, the image of the slice (perpendicular to the direction of propagation of the beam plane) of the laser path becomes blurred with a shape that is constantly changing over time 13,14,15 . The aim of this work is to develop a more accurate system for calculating the coordinates of laser beam spots.…”

Section: Introductionmentioning

confidence: 99%

Development of a combined method for calculating coordinates of laser beam spots using a direct parallel-hierarchical transformation

Tymchenko¹,

Kokriatska²,

Tverdomed³

et al. 2022

Photonics Applications in Astronomy, Communications, Industry, and High Energy Physics Experiments 2022

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The article introduces an approach to solving the problem of small beam divergence in data transmission using lasers. A combined model for calculating and classifying laser beam spots is developed, the developed scheme is modeled and the solution speed is analyzed. , the developed method showed good efficiency and can be used for calculating the coordinates of laser beam spots and their further classification. It can be useful in such systems as laser beam profiling systems, fiber optic communication systems, laser navigation and tracking systems in military affairs, and atmospheric optical communication lines.

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System of the phase tomography of optically anisotropic polycrystalline films of biological fluids

Cited by 30 publications

References 11 publications

Information Conversion in Measuring Channels with Optoelectronic Sensors

Information Conversion in Measuring Channels with Optoelectronic Sensors

Differential Diagnostics of Aseptic and Septic Loosening of the Cup of the Endoprosthesis of the Artificial Hip Joint by the Methods of Polarisation Tomography

Development of a combined method for calculating coordinates of laser beam spots using a direct parallel-hierarchical transformation

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