COMPUTER MODELING OF FUNCTIONS FOR THE TRANSFORMATION OF OPTICAL SCHEMES OF MEASUREMENT OF TEMPERATURE CONSTRUCTED ON RAMAN EFFECT AND STRUCTURE OF THE ALGORITHM OF THEIR RESEARCH
DOI:
https://doi.org/10.15588/1607-3274-2018-3-3Keywords:
temperature measurement, spectra of combinational light scattering, Raman thermometerAbstract
Context. In the process of measuring the temperature for the frequency shift of the combination scattering of light there is aproblem of determining the equivalent frequency of the spectrum. This is manifested by the passage of reflected radiation through
optical elements, which is distorted by the errors of the complex frequency characteristics of these elements. Large error in
temperature determination is result of inaccurate definition of the equivalent frequency. Therefore, the synthesis of software models
of optical elements of optical circuits, as well as the spectrum of combinational light scattering for further research is relevant.
Objective – synthesis of models of elements of optical circuits and spectra of combination scattering of light. That makes it
possible to investigate the uncertainty of the transfer characteristics of the optical transformation function.
Method. Recently, various products and sensors, developed on the basis of micro and nanostructure materials, are widely used. A
number of electronic technology components are developed that are hundreds of times smaller than their predecessors. In the process
of manufacturing such miniature components of electronic technology need to carefully monitor the temperature. Characteristics of
existing measuring instruments do not fully meet these requirements. One of the promising directions for solving this problem is the
use of the method of combining light scattering. Two methods of determining the temperature are known in the framework of the
method of the combination scattering of light: the first with respect to the ratio of the integral area of the Stokes component of the
spectrum to the anti-Stokes, the second by the shift of the frequency of light scattering. The second method has a better performance
at least 2 times, since it is only necessary to determine the anti-Stokes component of the spectrum. Also, this method has a lesser
methodological error, which arises due to overheating of the object being studied by a laser. Therefore, this method and method for
further research was chosen.
Results. Synthesized computer models of optical components and optical circuits and Raman spectroscopy. Two methods for
determining the value of the equivalent frequency of an anti-Stokes component of the light scattering spectrum are proposed.
Conclusions. The conducted studies have shown that the primary circle of the optical circuitry does not make any errors in the
result of measuring the temperature at the shift of the frequency of the combination light scattering. It’s proven expedient to conduct
a study of the secondary circle of the optical circuit.
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