An ultrasonic measurement model using a multi-Gaussian beam model for a rectangular transducer.
To date, ultrasonic measurement models have primarily treated systems where circular transducers are used. Recently, however, a highly efficient ultrasonic beam model for a rectangular transducer has also become available where the transducer is represented as a superposition of a relatively few Gaussian beams. Thus, using the multi-Gaussian beams, we developed ultrasonic measurement models for systems where a rectangular transducer is employed. In this paper, we describe the developed models including the beam model, the efficiency factor for a rectangular transducer and far-field scattering models for some standard scatterers. Furthermore, the accuracy of the proposed model is verified by the comparison of the model-based predictions to the experimental measurements.
Kim
Hak-Joon
HJ
School of Mechanical Engineering, Sungkyunkwan University, 300 Chonchon-dong, Jangan-gu, Kyounggi-do 440 746, Republic of Korea.
Song
Sung-Jin
SJ
Schmerr
Lester W
LW