Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 1028-1036 |
| Number of pages | 8 |
| Journal | IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control |
| Volume | 53 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2006 |
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Keywords
- modelling
- electrical model
- polarization
- electroacoustic transducer
- piezoelectric sensor
- bioengineering
- ultrasound
- systems engineering
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A block diagram model of the thickness mode piezoelectric transducer containing dual oppositely polarised piezoelectric zones. / Estanbouli, Y.; Hayward, G.; Ramedas, N.; Barbenel, J.C.
In: IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, Vol. 53, No. 5, 2006, p. 1028-1036.Research output: Contribution to journal › Article
TY - JOUR
T1 - A block diagram model of the thickness mode piezoelectric transducer containing dual oppositely polarised piezoelectric zones
AU - Estanbouli, Y.
AU - Hayward, G.
AU - Ramedas, N.
AU - Barbenel, J.C.
PY - 2006
Y1 - 2006
N2 - A unidimensional, linear systems, block diagram model of a two-layer thickness mode piezoelectric transducer is presented. The layers are subject to opposing piezoelectric polarization and the device is assumed to be loaded by semi-infinite isotropic media at the two principal faces. Block diagram representations of the transducer acting as both a generator and a receiver of ultrasound are developed in conjunction with the equivalent model of the electrical admittance. When expressed in this manner, the underlying cause and effect relationships are identified, with the important contribution of the piezoelectric boundary highlighted. Comparisons with the conventional single-layer transducer are made throughout and the major physical differences in terms of transduction performance are discussed. The new model is compared with finite element analysis and good agreement is also demonstrated with experimental data. A key aspect of the methodology is the provision of a more intuitive understanding of such device behavior. Accordingly, emphasis has been placed on the physical relationships and this is considered a major contribution of the work.
AB - A unidimensional, linear systems, block diagram model of a two-layer thickness mode piezoelectric transducer is presented. The layers are subject to opposing piezoelectric polarization and the device is assumed to be loaded by semi-infinite isotropic media at the two principal faces. Block diagram representations of the transducer acting as both a generator and a receiver of ultrasound are developed in conjunction with the equivalent model of the electrical admittance. When expressed in this manner, the underlying cause and effect relationships are identified, with the important contribution of the piezoelectric boundary highlighted. Comparisons with the conventional single-layer transducer are made throughout and the major physical differences in terms of transduction performance are discussed. The new model is compared with finite element analysis and good agreement is also demonstrated with experimental data. A key aspect of the methodology is the provision of a more intuitive understanding of such device behavior. Accordingly, emphasis has been placed on the physical relationships and this is considered a major contribution of the work.
KW - modelling
KW - electrical model
KW - polarization
KW - electroacoustic transducer
KW - piezoelectric sensor
KW - bioengineering
KW - ultrasound
KW - systems engineering
UR - http://dx.doi.org/10.1109/TUFFC.2006.1632692
U2 - 10.1109/TUFFC.2006.1632692
DO - 10.1109/TUFFC.2006.1632692
M3 - Article
VL - 53
SP - 1028
EP - 1036
JO - IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
JF - IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
SN - 0885-3010
IS - 5
ER -