Investigation of the influence of the transducer positioning angle deviation on the 3D reflections from a triangle reflector
نویسنده
چکیده
Objective of this study was to investigate the influence of the transducer positioning angle deviation from its supposed position on the 3D reflections from a triangle reflector. For that an acoustic computer model using the Huygens approach, which enables calculation of the signals reflected by the triangles in 3D space was used. Modelling was performed at different deflection angles of triangles with respect to the transducer and at different transducer deflection angles from its supposed position for each triangle angle. The performed simulations show that even small deflection of the transducer from its supposed position deteriorate the obtained image of the inspected object.
منابع مشابه
Numerical study, investigation effect of distance and angle of spur dike on average velocity distribution and maximum velocity position at mild 90 degree bend
Use the Spur dike as one of the easiest ways to protect the costal of the river has always been of interest to River engineers.The aim of this study was numerical investigate, the effect of distance and angle of the spur dikes parameters on the pattern of distribution of average velocity and the location of maximum velocity position at a mild 90 degree bend. For this purpose used ANSYS CFX so...
متن کاملModelling of 3D reflections from triangles using the Huygens approach
Abstract: Objective of this study was to develop an acoustic computer model, which would enable to calculate the signals reflected by triangles arbitrally oriented in space. Modelling of 3D reflections from triangles using the Huygens approach was performed. The rotation of the triangle in such a way, that after the turn the triangle would be located in one plane allowed to reduce the amount of...
متن کاملNumerical Investigation of Size and Structure Effect on Tensile Characteristics of Symmetric and Asymmetric CNTs
In this research, the influence of structure on the tensile properties of single- walled carbon nanotubes (CNTs) is evaluated using molecular mechanics technique and finite element method. The effects of diameter, length and chiral angle on elastic modulus and Poisson’s ratio of armchair, zigzag and chiral structures are investigated. To simulate the CNTs, a 3D FEM code is developed using the A...
متن کاملTheoretical Analysis of Polarization Rotation angle in Dual Reflector Antenna
Because of special structure, a dual reflector antenna has beam rotation capability in azimuth and elevation directions. In this structure, the antenna beam can be placed in any point in the space by mechanical movement of twist reflector which it is the most important ability of the antenna. Due to the antenna structure, if the polarization of incident wave is linear, it is expected that the p...
متن کاملExperimental verification of the acoustic computer model using triangle reflector
Objective of this study was experimental verification of the acoustic computer model, which enables calculation of the signals reflected by triangles arbitrally oriented in space. Verification of the computer model was carried out comparing the C-scan images of triangle reflectors, obtained experimentally and by simulation in the case when ultrasonic beam is reflected by triangle reflectors, re...
متن کامل