Optimization of broadband transducer designs by use of statistical design of experiments

McKeighen, R.E.

doi:10.1109/58.484464

Cited by 21 publications

(5 citation statements)

References 13 publications

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“…Compared with other traditional theoretical models, there is no need to simplify the assumptions for a large-scale, no matter how complex the structure of the transducer is. The calculated results can be more genuinely reflect the performance of the transducer [11]. Currently, commercial finite element software ANSYS uses the second order of piezoelectric coupled field equations:…”

Section: The Theory Of Transducermentioning

confidence: 98%

The simulation and analysis of a free-flooded ring transducer using the axisymmetric finite element model

et al. 2015

2015 12th International Conference on Fuzzy Systems and Knowledge Discovery (FSKD)

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This paper concerns the calculation and analysis of a free-flooded ring transducers using the axisymmetric finite element model and the finite element method (FEM). The theoretical basis of FEM and important parameters of freeflooded ring transducer are introduced. Following a brief description of FEM, the axisymmetric finite element model of free-flooded ring transducer relating to meshing is established. A new free-flooded ring transducer is designed, and then analyzed using the axisymmetric finite element model. The admittance curve and the transmitting voltage response versus frequency are obtained, which are in complete accordance with measured results. It proved to be a good guideline to the further design and analysis of ring transducers.

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Section: The Theory Of Transducermentioning

confidence: 98%

The simulation and analysis of a free-flooded ring transducer using the axisymmetric finite element model

et al. 2015

2015 12th International Conference on Fuzzy Systems and Knowledge Discovery (FSKD)

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“…Level sets are widely used in medical image segmentation. In terms of physical interpretation as active contours, they are elastic bodies that react and move in a natural way to applied forces and constraints (McKeighen, 1996; Osher and Fedkiw, 2001). …”

Section: Uncertainty and Variability In Computational Models: Propagamentioning

confidence: 99%

Analysis of Uncertainty and Variability in Finite Element Computational Models for Biomedical Engineering: Characterization and Propagation

Mangado

Piella

Noailly

et al. 2016

Front. Bioeng. Biotechnol.

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Computational modeling has become a powerful tool in biomedical engineering thanks to its potential to simulate coupled systems. However, real parameters are usually not accurately known, and variability is inherent in living organisms. To cope with this, probabilistic tools, statistical analysis and stochastic approaches have been used. This article aims to review the analysis of uncertainty and variability in the context of finite element modeling in biomedical engineering. Characterization techniques and propagation methods are presented, as well as examples of their applications in biomedical finite element simulations. Uncertainty propagation methods, both non-intrusive and intrusive, are described. Finally, pros and cons of the different approaches and their use in the scientific community are presented. This leads us to identify future directions for research and methodological development of uncertainty modeling in biomedical engineering.

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“…The results were widely adopted for optimizing matching layers in broadband transducer design. Even so, efforts to optimize the matching layer design have been continuing [3][4][5]. Hossack et al [6] reported an active piezoelectric matching layer that was incorporated into a novel transducer.…”

Section: Improved Piezoelectric Materialsmentioning

confidence: 99%

Design and fabrication of broadband graded ultrasonic transducers with rectangular kerfs

Guo

Cannata

Zhou

et al. 2005

IEEE Trans. Ultrason., Ferroelect., Freq. Contr.

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Broadband ultrasound imaging is capable of achieving superior resolution in clinical applications. An effective and easy way of manufacturing broadband transducers is desired for these applications. In this work, a graded material in which the piezoelectric plate is mechanically graded with rectangular grooves is introduced. Finite Element Analysis (FEA) demonstrated that the graded piezoelectric material could achieve a broadband time-domain response resulted from multiple resonant modes. Experimental tests were carried out to validate these theoretical results. Based upon the FEA designs, several single-element transducers were fabricated using either a non-diced ceramic or a diced graded ceramics. A superior bandwidth of 92% was achieved by the graded transducer when compared to a bandwidth of 56% produced by the non-diced ceramic transducer at the expense of a reduced sensitivity.

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Optimization of broadband transducer designs by use of statistical design of experiments

Cited by 21 publications

References 13 publications

The simulation and analysis of a free-flooded ring transducer using the axisymmetric finite element model

The simulation and analysis of a free-flooded ring transducer using the axisymmetric finite element model

Analysis of Uncertainty and Variability in Finite Element Computational Models for Biomedical Engineering: Characterization and Propagation

Design and fabrication of broadband graded ultrasonic transducers with rectangular kerfs

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