2 research outputs found
Comparison of estimated nominal values of static charactersitics based on measurements by different methods
One of the quality requirements of thermal imaging devices used in surveillance systems and in forensics refers to the assessment of its capabilities in relation to remote detection, recognition and identification of far-off objects of interest.
This paper discusses the concept of spatial frequency and compares the estimated values of the nominal static characteristics of the range based on the measurement of the characteristics of a thermal imaging camera according to standard methods (MRTD - Minimum Resolvable Tempera-ture Difference, MDTD - Minimum Detectable Temperature Difference, TOD - Triangle Orientation Discrimination) on an arbitrarily chosen thermal imaging camera
STRESS CALCULATION AND DEFORMATION OF TANKS LOADED BY INTERNAL GAS PRESSURE LOCATED IN CITY HEATING PLANTS
The paper presents the procedure for calculating stress
in gas pressure tanks using finite shell elements for linear
and geometrically nonlinear analysis. Therefore, a procedure has been developed to automatically generate the
necessary data for the finite element method (FEM), such
as geometry, numbering of elements and nodes, and the
determination of forces. Forces are calculated from: pressure difference in relation to external pressure; hydrostatic
pressure and gas pressure; and pressure vessel weight. It
enables fairly simple and easy use of developed software in
everyday practice and provides great opportunities for
further upgrading and fundamental determination of the
impact on parameters for different types of tanks and pressure containers in general