Dissimilar trend of nonlinearity in ultrasound transducers and systems at resonance and non-resonance frequencies

详细信息    查看全文

• 作者：Negareh Ghasemi^a ; ^{n.ghasemi@qut.edu.au} ; Firuz Zare^b ; Pooya Davari^c ; Mahinda Vilathgamuwa^a ; Arindam Ghosh^d ; Christian Langton^e ; Peter Weber^f
• 关键词：High power ultrasound transducer ; Nonlinear behaviour ; Ultrasound system excitation ; Power electronic converters
• 刊名：Ultrasonics
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：74
• 期：Complete
• 页码：21-29
• 全文大小：2087 K
• 卷排序：74

文摘

At high voltage range (>100 V), the ultrasound transducer could be saturated. The impedance of the transducer is changed when the excitation signal is increased. Nonlinearity of the ultrasound transducer is concluded from experimental results. The ultrasound system is nonlinear because it does not obey the superposition rule.