Assessing the relationship between the inter-rod coupling and the efficiency of piezocomposite high-intensity focused ultrasound transducers

Ultrasonics ◽  
2014 ◽  
Vol 54 (3) ◽  
pp. 789-794
Author(s):  
Gin-Shin Chen ◽  
Chia-Ching Pan ◽  
Yu-Li Lin ◽  
Jung-Sung Cheng
Keyword(s):  
High Intensity ◽  
Focused Ultrasound ◽  
High Intensity Focused Ultrasound ◽  
Ultrasound Transducers ◽  
The Relationship

scholarly journals A novel method for estimating the focal size of two confocal high-intensity focused ultrasound transducers

2005 ◽  
Vol 117 (6) ◽  
pp. 3740-3749 ◽  
Author(s):  
Wen-Shiang Chen ◽  
Ping-Mo Ma ◽  
Hao-Li Liu ◽  
Chih-Kuang Yeh ◽  
Min-Shin Chen ◽  
...  
Keyword(s):  
High Intensity ◽  
Focused Ultrasound ◽  
High Intensity Focused Ultrasound ◽  
Ultrasound Transducers ◽  
Novel Method

Development of high intensity focused ultrasound transducers to deliver specified shock wave amplitudes at the focus

2014 ◽  
Vol 135 (4) ◽  
pp. 2312-2313
Author(s):  
Vera A. Khokhlova ◽  
Petr V. Yuldashev ◽  
Pavel B. Rosnitskiy ◽  
Adam D. Maxwell ◽  
Wayne Kreider ◽  
...  
Keyword(s):  
Shock Wave ◽  
High Intensity ◽  
Focused Ultrasound ◽  
High Intensity Focused Ultrasound ◽  
Ultrasound Transducers

scholarly journals Estimation of Acoustic Power Output from Electrical Impedance Measurements

Acoustics ◽  
2020 ◽  
Vol 2 (1) ◽  
pp. 37-50
Author(s):  
Gergely Csány ◽  
Michael Gray ◽  
Miklós Gyöngy
Keyword(s):  
Power Output ◽  
High Intensity ◽  
Electrical Impedance ◽  
Focused Ultrasound ◽  
Low Cost ◽  
Acoustic Power ◽  
High Intensity Focused Ultrasound ◽  
Ultrasound Transducers ◽  
Impedance Measurements ◽  
Primary Advantage

A method is proposed for estimating the acoustic power output of ultrasound transducers using a two-port model with electrical impedance measurements made in three different propagation media. When evaluated for two high-intensity focused ultrasound transducers at centre frequencies between 0.50 and 3.19 MHz, the resulting power estimates exceeded acoustic estimates by 4.5–21.8%. The method was shown to be valid for drive levels producing up to 20 MPa in water and should therefore be appropriate for many HIFU (high-intensity focused ultrasound) applications, with the primary advantage of employing relatively low-cost, non-specialist materials and instrumentation.

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