Nonlinear Measurements of High Power 1-3 Piezo-Air-Transducers with Burst Excitation

Albareda, A.; Casals, J. A.; Pérez, R.; Espinosa, F. Montero de

doi:10.1080/00150190211794

Cited by 9 publications

(5 citation statements)

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“…Measurements of this type have been successfully used [29] to characterize materials with a high mechanical qual-ity factor, working at the first resonance mode, which is that at the lowest frequency. However, when it has been used to characterize 3-1 composites [26]- [28], serious measurement difficulties has been found. Indeed, in this case it is easy to find several resonant modes, for example, thickness and lateral modes, with close frequency values.…”

Section: Burst Measurements: Free Vibrations In the Tailmentioning

confidence: 99%

Optimization of Elastic Nonlinear Behavior Measurements of Ceramic Piezoelectric Resonators with Burst Excitation

Albareda

Pérez

Casals

et al. 2007

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

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A system of nonlinear measurement and nonlinear elastic characterization of resonators is presented, which increases the possibilities and characteristics of the other classic nonlinear characterization methods. This characterization has been necessary due to the use of resonators in power devices, where their behavior departs from the linear characteristics. The use of burst signals and a system of acquisition and data processing is proposed instead of impedance analyzers, thus avoiding the thermal effects associated with the high-signal measures, which are necessary for this characterization. The measures are repeated for different amplitudes and at the same frequency near the resonance by a single amplitude sweep, which is simpler and faster to carry out than the multiple frequency sweepings used in other methods. As a last resort, a variation on the proposed method, closer to the classical measures, is put forward, in which the resonance is ensured in all the measures. Special emphasis is placed on obtaining nonlinear characterization of the piezoceramic material in order to increase its optimization in the transducers in terms of both its use and its composition and structure.

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Section: Burst Measurements: Free Vibrations In the Tailmentioning

confidence: 99%

Optimization of Elastic Nonlinear Behavior Measurements of Ceramic Piezoelectric Resonators with Burst Excitation

Albareda

Pérez

Casals

et al. 2007

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

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“…Currently, the acoustic emission (AE) method [ 32 , 33 ], optical measurement method [ 34 , 35 ], mode degradation method [ 36 ], and other single-point methods are mainly used to measure the vibration amplitude of the transducer. Albareda [ 37 ] used a combination of optoelectronic methods, voltage and current measurements with an oscilloscope, and the vibration velocity of the transducer point with a laser vibrometer to evaluate a transducer’s operating state.…”

Section: Introductionmentioning

confidence: 99%

Research on Inherent Frequency and Vibration Characteristics of Sandwich Piezoelectric Ceramic Transducer

Pan

et al. 2022

Sensors

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Great progress has been made in the field of ultrasonic processing in recent years, and piezoelectric ceramic transducers have been widely used as drive sources. In this paper, a sandwich piezoelectric ceramic transducer is designed, and the vibration of each part of the transducer is analyzed by elastic mechanics and piezoelectric theory. According to its mechanical and electrical boundary conditions, the vibration model of the piezoelectric transducer was established. Based on the equivalent elastic modulus method for simplifying the pre-stressed bolts into a one-dimensional transducer vibration model, the relationship between the one-dimensional axial response frequency of the transducer and the length of each component was obtained. Based on the half wavelength theory, a transducer with the vibration node in the crystal stack and an inherent frequency of 15 kHz was designed and fabricated. In order to verify the natural frequency and vibration characteristics of the piezoelectric transducer, a laser vibration measurement system was built in this study. The vibration characteristics of the transducer under different parameters such as voltage and frequency were analyzed, and the accuracy of the vibration model was verified. The vibration states of the end surface of the transducer and the radial surface were evaluated at the first-order inherent frequency and second-order inherent frequency. The results show that the equivalent simplified model established in this study can effectively design the inherent frequency of the transducer, and the operation at the first-order inherent frequency meets the one-dimensional assumptions of this study. The transducer operating conditions measured in this study also provide a more detailed reference for ultrasonic processing applications.

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“…Piezoelectric ceramic materials are used in many high-power applications where their inherent non-linear properties become manifest. Examples include piezoelectric-air transducers used in ultrasound stimulated with high-power excitations [1]. Industrial piezoelectric actuators, e.g.…”

Section: Introductionmentioning

confidence: 99%

“…This is fitted to the experimental data to determine intermediate constants (equivalent circuit values) specifying the ODE. The ODE is then solved in the frequency domain 1 and compared with a frequency-domain spectrum of the original PDE to yield material properties. This complicated calculation is needed since the original PDE cannot be solved analytically in the time domain.…”

Section: Introductionmentioning

confidence: 99%

Non-linear piezoelectric resonance analysis using burst mode: a rigorous solution

Blackburn¹,

Cain²

2006

J. Phys. D: Appl. Phys.

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The burst mode experiment is commonly used to measure non-linear piezoelectric material properties. However, the theory that is often employed is highly simplified, making use of linear results. Here we represent a more rigorous theory based closely on the underlying non-linear partial differential equations. Since time domain solutions are not available analytically, the approach is in two parts: the PDE is solved in the frequency domain, then an auxilliary non-linear ordinary differential equation is solved in the time domain. Comparison of the two yields the material parameters. Also, we suggest the excitation portion of the I(t) curve be studied rather than the decay part normally used since the former contains more features, has a well-defined initial condition (current and charge both zero) and is less susceptible to experimental artefacts.

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Nonlinear Measurements of High Power 1-3 Piezo-Air-Transducers with Burst Excitation

Cited by 9 publications

References 0 publications

Optimization of Elastic Nonlinear Behavior Measurements of Ceramic Piezoelectric Resonators with Burst Excitation

Optimization of Elastic Nonlinear Behavior Measurements of Ceramic Piezoelectric Resonators with Burst Excitation

Research on Inherent Frequency and Vibration Characteristics of Sandwich Piezoelectric Ceramic Transducer

Non-linear piezoelectric resonance analysis using burst mode: a rigorous solution

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