Study of polymer ultrasonic transducer and complex ultrasonic transducer with PZT PVDF multi-layer structure

Authors
Liu, XZ Ye, SG Gong, XF Zhang, WY Lu, RR
Citation
Xz. Liu et al., Study of polymer ultrasonic transducer and complex ultrasonic transducer with PZT PVDF multi-layer structure, ACUSTICA, 85(3), 1999, pp. 420-426
Citations number
13
Categorie Soggetti
Optics & Acoustics
Journal title
ACUSTICA
ISSN journal
14367947 → ACNP
Volume
85
Issue
3
Year of publication
1999
Pages
420 - 426
Database
ISI
SICI code
1436-7947(199905/06)85:3<420:SOPUTA>2.0.ZU;2-#
Abstract
In this paper, using KLM model with internal losses, the effects of piezoel ectric film on the input power loss and pulse-echo response of transducer w ere analysed. Two kinds of ultrasonic transducers were designed and fabrica ted. One is a spherically focused ultrasonic transducer composed of PVDF fi lm. Another is a complex ultrasonic transducer with PZT/PVDF multi-layer st ructure. The theoretical and experimental results show that these two kinds of transducers have their own advantages in medical diagnoses.