Improved characterization of ultrasound sources by radiation force balance using acoustic holography in place of plane-wave and geometric approximations

2020 ◽  
Vol 148 (4) ◽  
pp. 2517-2517
Author(s):  
Oleg A. Sapozhnikov ◽  
Dmitry A. Nikolaev ◽  
Sergey A. Tsysar ◽  
Vera A. Khokhlova ◽  
Wayne Kreider
Keyword(s):  
Plane Wave ◽  
Radiation Force ◽  
Force Balance ◽  
Acoustic Holography ◽  
Radiation Force Balance

Application of self-reciprocity in estimating ultrasonic power with a novel measurement method

Sensor Review ◽  
2014 ◽  
Vol 34 (4) ◽  
pp. 410-415 ◽  
Author(s):  
Ping Yang ◽  
Guangzhen Xing
Keyword(s):  
Reflection Coefficient ◽  
Measurement Method ◽  
Radiation Force ◽  
Open Circuit ◽  
Force Balance ◽  
Power Measurement ◽  
Ultrasonic Power ◽  
Content Type ◽  
Radiation Force Balance ◽  
Power Measurements

Purpose – This article aims to propose a new measurement method for ultrasonic power based on self-reciprocity theorem which turns the estimation of ultrasonic power to the measurement of first echo current and open-circuit voltage of the driving source. Design/methodology/approach – The formula for ultrasonic power is derived which has corrected the position of pressure reflection coefficient on the interface of water and steel. The diffraction correction for focusing transducers is evaluated using numerical computation of the Rayleigh integral. One way to estimate the reflection coefficient of focusing beams on heterogeneous interface is also depicted. Findings – Comparison experiment with radiation force balance method demonstrates that ultrasonic power measurement using self-reciprocity is sound in theory and feasible in practice. Originality/value – It has a better capability of anti-environmental interference and, thus, can be extended to low-level and high-frequency power measurements.

Sign in / Sign up

Export Citation Format

Share Document