Finite element analysis of the cymbal-type flextensional transducer

Tressler, James F.; Cao, Wenwu; Uchino, Kenji; Newnham, R. E.

doi:10.1109/58.726463

Cited by 74 publications

(44 citation statements)

References 6 publications

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“…In addition to conventional composite structures, such as 1-3, 2-2, and 0-3 composites with relaxor-PT as an active material [84,85], the special composite structures including cymbal transducer can also be designed for better usage of high piezoelectricity of relaxor-PT single crystals. The cymbal transducer was originally developed by Newnham et al [86][87][88] in 1990s. This cymbal structure converts the radial motion of the piezoelectric ceramic into a flextensional motion in the metal endcaps, resulting in a large displacement at the center of the endcaps.…”

Section: Cymbal Hydrophonementioning

confidence: 99%

Relaxor-PT Single Crystal Piezoelectric Sensors

Jiang

Kim

2014

Crystals

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Relaxor-PbTiO 3 piezoelectric single crystals have been widely used in a broad range of electromechanical devices, including piezoelectric sensors, actuators, and transducers. This paper reviews the unique properties of these single crystals for piezoelectric sensors. Design, fabrication and characterization of various relaxor-PT single crystal piezoelectric sensors and their applications are presented and compared with their piezoelectric ceramic counterparts. Newly applicable fields and future trends of relaxor-PT sensors are also suggested in this review paper.

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Section: Cymbal Hydrophonementioning

confidence: 99%

Relaxor-PT Single Crystal Piezoelectric Sensors

Jiang

Kim

2014

Crystals

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“…There have been great efforts in modeling and formulating such Langevin transducers, including thick high power ultrasonic radiators by Mori and Tsuda (1981), the study on the effect of material properties and the dimensional changes on the resonance frequencies of cymbal transducer by Tressler et al (1998) and Uzgur et al (2002). Among all these works on conventional Langevin transducers, the working heads were not considered in the modeling.…”

Section: Introductionmentioning

confidence: 99%

Dynamic coupling and experimental study on flexural transducer used in near field acoustic levitation

Jin

Liu

Ding

2014

JAMDSM

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Acoustic transducers with large radiation surfaces are used to handle planar object without any physical contact. To more accurately describe the dynamic performance of such transducer with strong coupling effect due to the large lateral scales, a mathematical model with flexural boundary conditions and gas inertia is presented in this paper. A coupled 3D finite element method model has been built and simulated with an identical experimental condition. The influences of dynamic coupling on the transducer performances and the levitation behaviors have been studied. We have found that under the strong dynamic coupling between the PZT and the large vibrator, the lowest impedance of the transducer shifts to the 2 nd resonant frequency, instead of locating at the 1 st resonant in a general case. Experiments have been set up to validate the coupling effects.Good agreement between the calculations and the experimental results indicates that the coupling plays an important role in the dynamic behaviors of the transducers with large lateral scales. Our work has improved the model's precision and provides an optimization tool to construct acoustic transducers used in the Near Field Acoustic Levitation.

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“…The performance of the cymbal transducer of the 5KHz-50KHz resonance frequency was researched in the foreign, such as sensivity, compression experiment research was did and production methods and process were introduced [5,6,7]. The electromechanical properties and vibration modal of the cymbal transducer of the 10KHz-40KHz resonance frequency were researched [8,9,10].…”

Section: Introductionmentioning

confidence: 99%

Simulation Analysis on Cymbal Transducer

Yang

Wang

et al. 2011

AEF

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Abstract. The resonance frequency of the cymbal transducer ranges from 2kHz to 40kHz and its effective electromechanical coupling factor is around 20%. Finite element analysis has been performed to ascertain how the transducer's makeup affect the transducer's performance parameters. Two-dimensional axisymmetric model of the cymbal transducer was founded by finite element software-ANSYS, the application of the element type was discussed and the FEM models were built up under the far field condition. Eight groups of cymbal transducers of resonance frequency around 3kHz with different structural dimensions were designed. It was better for choosing the cymbal transducer of the 8mm cavity coping diameter, 20.8mm cavity bottom diameter and 26.8mm piezoelectric ceramic wafer diameter than others for reducing distortion degree of the signal and improving communication turnover in the researched cymbal transducers. It was appropriate for choosing the cymbal transducer of the 8mm cavity coping diameter, 22.4mm cavity bottom diameter and 26.4mm piezoelectric ceramic wafer diameter in order to improve the free-field voltage sensitivity and transmission efficient.

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Finite element analysis of the cymbal-type flextensional transducer

Cited by 74 publications

References 6 publications

Relaxor-PT Single Crystal Piezoelectric Sensors

Relaxor-PT Single Crystal Piezoelectric Sensors

Dynamic coupling and experimental study on flexural transducer used in near field acoustic levitation

Simulation Analysis on Cymbal Transducer

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