High performance ultrasound needle transducer based on modified PMN-PT ceramic with ultrahigh clamped dielectric permittivity

	High performance ultrasound needle transducer based on modified PMN-PT ceramic with ultrahigh clamped dielectric permittivity
	Zhiqiang Zhang; Fei Li; Ruimin Chen; Tianfu Zhang; Xiaodong Cao; Shujun Zhang; Thomas Shrout; Hairong Zheng; K. Kirk Shung; Mark S.
刊名	IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL
	2017
文献子类	期刊论文
英文摘要	A modified Pb(Mg1/3Nb2/3) O3-PbTiO3 (PMN-PT) polycrystalline ceramic with ultrahigh relative clamped dielectric permittivity (εS/ε0 = 3500) and high piezoelectric properties (d 33 = 1200 pC/N, k t = 0.55) was used to fabricate high frequency miniature ultrasound transducers. A 39 MHz high frequency ultrasound needle transducer with a miniature aperture of 0.4 mm × 0.4 mm was designed and successfully characterized. The fabricated needle transducer had an electromechanical coupling factor k t of 0.55, large bandwidth of 80% at -6 dB, and low insertion loss of -13 dB. A wire phantom and porcine eyeball imaging study showed good imaging capability of this needle transducer. The transducer performance was found to be superior to that of other needle transducers with miniature apertures; making this modified PMN-PT ceramic based needle transducer quite promising for minimally invasive procedures in medical applications.
URL标识	查看原文
语种	英语
内容类型	期刊论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/12036]
专题	深圳先进技术研究院_医工所
作者单位	IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL
推荐引用方式 GB/T 7714	Zhiqiang Zhang,Fei Li,Ruimin Chen,et al. High performance ultrasound needle transducer based on modified PMN-PT ceramic with ultrahigh clamped dielectric permittivity[J]. IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL,2017.
APA	Zhiqiang Zhang.,Fei Li.,Ruimin Chen.,Tianfu Zhang.,Xiaodong Cao.,...&Mark S..(2017).High performance ultrasound needle transducer based on modified PMN-PT ceramic with ultrahigh clamped dielectric permittivity.IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL.
MLA	Zhiqiang Zhang,et al."High performance ultrasound needle transducer based on modified PMN-PT ceramic with ultrahigh clamped dielectric permittivity".IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL (2017).