Domain reorientation of piezoelectric bending actuators

Li, Tao; Chen, Y.H.; Boey, Freddy Yin Chiang; Ma, Jan

doi:10.1016/j.sna.2006.06.032

Cited by 11 publications

(6 citation statements)

References 25 publications

(32 reference statements)

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“…The experimental data are noted to agree well with the theoretical value derived from eqn (2). Displacement of 213 µm is achieved with S2 under 48 MV/m, while only 17.5 µm was obtained from PZT (PZT1) unimorph of similar size under the same voltage 19…”

Section: Resultsmentioning

confidence: 94%

Polymeric piezoelectric cantilever and tubular actuators

2010

Polymers for Advanced Techs

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Electroactive polymers (EAPs) have attracted a great deal of attention in the last decade due to their unique properties that are applicable to many advanced applications. The present work aims to study the materials-property relationship of this class of materials, and thus facilitate the implementation of EAPs in more applications. The present work investigated the feasibility of adapting cantilever and tubular configurations to the polymeric piezoelectric actuators. The polarization and displacement of samples (fabricated from Poly(Vinyldene fluoridetrifluroethylene) [P(VDF-TrFE)] thin film) were measured under both dynamic and static driving conditions. The polarization loops for all the samples exhibit little hysteresis under weak field and the polarization changes linearly with voltage for most samples. The frequency-dependent polarization behavior is consistent with the previous reported work. The displacements for both cantilever and tubular samples are also noted to be in agreement with the theoretical prediction. Significant displacement (1079 mm) was achieved for samples, even under weak field (60 MV/m). In summary, the results have suggested that the relationship between geometric variables and the performance is also applicable to polymeric materials. Thus, the constitutive relationship can also be applied as a guideline for designing and optimizing the polymeric actuators beyond P(VDF-TrFE) copolymer materials. Figure 4. The dynamic displacement of sample S1A (15 Â 4 Â 0.22 mm 3 ) under a series of voltages; the bandwidth is indicated for the curve when the driving voltage is 500 V. This figure is available in color online atFigure 5. (a) The polarization and displacement for sample one, inset depicts the linear relationship at relatively low voltage; (b) polarization and displacement for sample one. This figure is available in color online at www.interscience.wiley.com/journal/pat Polym.

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Section: Resultsmentioning

confidence: 94%

Polymeric piezoelectric cantilever and tubular actuators

2010

Polymers for Advanced Techs

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“…It can be found that the high-frequency actuator shows larger distortions in the wave form from the sinusoidal signals than that of the low-frequency actuator. This distortion can be attributed to the domain reorientation which induces non-linearities between voltage and current [31]. It is well known that both intrinsic and extrinsic, especially the extrinsic effect-domain wall motion, contribute to the piezoelectricity [32][33][34][35][36].…”

Section: Resultsmentioning

confidence: 99%

Frequency dependence of piezoelectric vibration velocity

Chen

2007

Sensors and Actuators A: Physical

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“…In the case of small displacement, the nonlinear behavior effects are minor and the nonlinear stretching (b) can be neglected. If a single layer (monomorph [12]) of electroactive material is used, during a flexural motion, the same amount of film is compressed and stretched across the thickness so the global generated voltage is zero (Fig. 4).…”

Section: Diaphragm Solutionmentioning

confidence: 99%

“…To extract energy in linear behavior, a double layers (bimorph [12]) of electroactive polymer is to be used. This bimorph structure use complex electrodes geometry (Fig.5).…”

Section: Figure 4: Flexural Motionmentioning

confidence: 99%

Bimorph hybrid fluid diaphragm device for vibration energy harvesting

Huet

Formosa

Badel

2016

2016 11th France-Japan &Amp; 9th Europe-Asia Congress on Mechatronics (MECATRONICS) /17th International Conference on Research

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A low resonant frequency piezoelectric energy harvesting using a hybrid fluid diaphragm (HFD) is presented. This paper describes the design, fabrication and characterization of such a device for harvesting energy from vibrations. The PHFD consists in an incompressible fluid confined between two thin piezoelectric membranes. The output voltage and power of the P(VDF-TrFE) HFD are studied based on experimental and simulation results. This device resonates at 164 Hz for low acceleration (10 m/s²). The simulations showed the power production of about 6 µW with a power density of 78.98 µW/cm³ of electroactive material volume.

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Domain reorientation of piezoelectric bending actuators

Cited by 11 publications

References 25 publications

Polymeric piezoelectric cantilever and tubular actuators

Polymeric piezoelectric cantilever and tubular actuators

Frequency dependence of piezoelectric vibration velocity

Bimorph hybrid fluid diaphragm device for vibration energy harvesting

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