A synthesis pattern of acoustic field produced by phased array based on the direct weighting of the controlled acoustic pressure

• 作者: DING Yajun HU Jiwen QIAN Shengyou
• 来源期刊: 声学学报：英文版
• 学科: 化学
• 关键词: 直接控制 声场分布 合成模式 相控阵 声压 基础 加权 重量计算
• 年，卷（期）: 2012,（1）
• 页码范围: 39-46
• 页数: 8页
• 分类号: O614.612|X3
• 语种: 英文

摘要

To optimize the acoustic field produced by phased array effectively and quickly, the pseudo-inverse method proposed previously is simplified. An approximate weight formula of sound pressure using a method of compensation to the amplitude and phase of the controlled sound pressure was presented. A multiple-focus field patterns based on the pseudo-inverse matrix algorithm can be obtained by presetting the value of the controlled sound pressure. A phased array comprised of 16 x 16 square elements is used for numerical simulation. The results show that the acoustic energy can be effectively deposited at the desired points, and the acoustic field can be synthesized quickly using the direct weight formula of the sound pressure. This study may offer an effective way for controlling the distribution of acoustic field in ultrasound hyperthermia.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	HU Jiwen		1	0	0.0	0.0
2	QIAN Shengyou		1	0	0.0	0.0
3	DING Yajun		1	0	0.0	0.0