Results 201 to 210 of about 40,547 (272)

Simulations, fabrication, and characterization of d31 mode piezoelectric vibration energy harvester

Microsystem Technologies, 2019
This paper presents the development work on d31 mode piezoelectric vibration energy harvester. The device structure consists of a fixed-free type cantilever beam with a seismic mass attached at the free end of the beam. On top of the cantilever beam, a ZnO piezoelectric layer is sandwiched between two metal electrodes.
Renu Singh, B. D. Pant, Ankush Jain
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Equivalent homogeneous model of D31-mode longitudinal piezoelectric transducers

Journal of Intelligent Material Systems and Structures, 2017
This article focuses on modelling of D31-mode longitudinal piezoelectric transducers. A simple equivalent one-dimensional homogeneous model of D31-mode longitudinal piezoelectric transducers is proposed in this article. Homogeneous properties of the model are derived by a simple analytical mixing method based on the operation principle of D31-mode ...
Yangkun Zhang, Tien-Fu Lu, Wei Gao
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Low frequency PVDF piezoelectric energy harvester with combined d31 and d33 operating modes

The 8th Annual IEEE International Conference on Nano/Micro Engineered and Molecular Systems, 2013
This paper reports the design, test and application of a novel low frequency piezoelectric energy harvester. To achieve high output voltage at low frequency, both d31 and d33 modes of polyvinylidene fluoride (PVDF) are utilized in this device. Output voltage of the device are tested under different frequencies and accelerations.
null Mengdi Han, null Yi Chiang Chan, null Wen Liu, null Shouhe Zhang, null Haixia Zhang   +4 more
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d31 Type inplane bending multilayer piezoelectric microactuators—a design concept and its applications

Sensors and Actuators A: Physical, 2002
Abstract A design concept for multilayer piezoelectric microactuator using piezoelectric coefficient d 31 was particularly stressed. Accordingly, two kinds of novel piezoelectric multilayer microactuators, called a split-morph and an annular split-morph, have been proposed and discussed for the dual stage actuation systems in high track density ...
Zhihong Wang, Weiguang Zhu, Xi Yao
openaire   +2 more sources

The measurement of the piezoelectric coefficients d31 and d3h for uniaxially oriented polyvinylidene fluoride

Ferroelectrics, 1986
Values are reported for the piezoelectric coefficients d31 and d3h, of highly oriented one-way drawn polyvinylidene fluoride. Samples were compared with high Form I content following two preparation procedures, one giving material of low Young's modulus by drawing to a conventional draw ratio and the other of high Young's modulus by drawing to a very ...
J. Humphreys, I. M. Ward, J. C. McGrath, E. L. Nix   +3 more
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Extraction of D31 Piezoelectric Coefficient of AlN Thin Film

IEEE/LEOS International Conference on Optical MEMS, 2021
Piezoelectric materials have the property of electromechanical coupling, which is very useful in Micro Electro Mechanical Systems (MEMS). Aluminium Nitride (AlN) thin film is an ideal candidate for resonators in on-chip front end circuit.
Bhadri Narayanan KN, D. Nair, A. DasGupta   +2 more
semanticscholar   +1 more source

A novel aureothin diepoxide derivative from Streptomyces sp. NIIST-D31 strain

The Journal of Antibiotics, 2022
A novel vicinal diepoxide of alloaureothin was isolated from Streptomyces sp. NIIST-D31 strain along with three carboxamides, p-aminobenzoic acid and 1,6-dimethoxyphenazine. Exhaustive 2D NMR analysis and analysis of experimental, theoretical CD spectra aided in establishing the structure of compound 1. Compound 1 inhibits adipogenesis and accumulation
Thankappan Drissya, D. K. Induja, M. S. Poornima, A. R. S. Jesmina, Bernard Prabha, Mathew Saumini, Cherumuttathu H. Suresh, K. G. Raghu, B. S. Dileep Kumar, Ravi S. Lankalapalli   +9 more
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