Modeling and simulation of responses from ultrasonic linear phased array / 生物医学工程学杂志
Journal of Biomedical Engineering
; (6): 846-850, 2012.
Article
em Zh
| WPRIM
| ID: wpr-246547
Biblioteca responsável:
WPRO
ABSTRACT
Phased array transducers are very attractive because the beam generated by the arrays can be electronically focused and steered. The present work characterizes far-field 2D properties of phased array system by functions that are deduced from rectangle source, rectangle line array and phased array based on point source. Results are presented for the distribution of ultrasound intensity on plane xoz and on x-axis by simulation using numerical calculation. It is shown that the shape of response of rectangle line array is modulated by the single array element. It is also demonstrated that the delay time of phased array is the key to steer the beam, sacrificing the value of main lobe and increasing the number of side lobes.
Texto completo:
1
Base de dados:
WPRIM
Assunto principal:
Transdutores
/
Ultrassom
/
Simulação por Computador
/
Métodos
/
Modelos Teóricos
Idioma:
Zh
Ano de publicação:
2012
Tipo de documento:
Article