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Journal articles on the topic 'Energy transducers'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Duan, Weiping, Yuxiang Zhang, Shihao Liu, Qian Shen, Zhiwei Hou, and Renwen Chen. "Design and Modeling of Coreless Magnetoelectric Transducers for Snake-like Wave Energy Converters." Electronics 13, no. 20 (2024): 4092. http://dx.doi.org/10.3390/electronics13204092.

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With the development of the economy, people’s demand for energy is increasing, which has led to a shortage of fossil fuels. Wave energy is a widely distributed renewable energy source, and the development of wave energy generation technology can greatly alleviate the energy shortage problem. This study takes the snake-like wave energy converter (WEC) as an example and designs a coreless magnetoelectric transducer for it. The structure of the coreless magnetoelectric transducer is relatively simple, eliminating the iron core in the transducer, which can eliminate its own damping. At the same ti

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2

Li, Cong. "Road Performance of Common Piezoelectric Transducer for Asphalt Pavement Energy Harvesting." Applied Mechanics and Materials 744-746 (March 2015): 1491–94. http://dx.doi.org/10.4028/www.scientific.net/amm.744-746.1491.

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The discussion in the paper is focused on energy transition efficiency, stiffness and intensity of common piezoelectric transducers in the following aspects. Firstly, we have found out that bridge piezoelectric transducers possess high energy transition efficiency and the similar stiffness to asphalt pavement through comparing and analyzing road performance of several common piezoelectric transducers. Thus, we hold the view that it is applicable for energy collection of asphalt pavement and will be analyzed subsequently. Secondly, we have analyzed energy transition efficiency and stiffness cha

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3

Lee, Jooho, Sheher Bano Zaigham, and Dong-Guk Paeng. "Shock Wave Characterization Using Different Diameters of an Optoacoustic Carbon Nanotube Composite Transducer." Applied Sciences 12, no. 14 (2022): 7300. http://dx.doi.org/10.3390/app12147300.

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Carbon nanotube–polymethyl siloxane (CNT-PDMS) composite transducers generate shock waves using optoacoustic technology. A thin layer of thermally conductive CNT and elastomeric polymer, PDMS, is applied on the concave surface of transparent polymethylmethacrylate (PMMA) to convert laser energy to acoustic energy using the thermoelastic effect of the composite transducer. The efficient conversion of laser energy requires an optimum utilization of the different properties of composite transducers. Among these properties, the diameter of composite transducers is a significant parameter. To pract

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4

LIN, Jiyan, Yao LI, Cheng CHEN, et al. "Research on surface and defect controlled high power piezoelectric ultrasonic transducers." Acta Physica Sinica 74, no. 9 (2025): 094301. https://doi.org/10.7498/aps.74.20250047.

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<sec>Researches have shown that a reasonably designed phononic crystal defect structure in high-power piezoelectric ultrasonic transducers can effectively suppress stray vibration modes. However, when the size of the transducer is large, the improvement of the displacement amplitude of the radiation surface of the transducer device by the phononic crystal defect structure is still not so ideal. How to effectively suppress harmful vibrations while ensuring the operational efficiency of transducers and enhancing the displacement amplitude of their radiating surfaces has always been a chall

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5

Dabrowski, Arkadiusz P., Slawomir Owczarzak, Henryk Roguszczak, and Leszek J. Golonka. "LTCC Piezoelectric Transducer for Energy Harvesting." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2015, CICMT (2015): 000105–11. http://dx.doi.org/10.4071/cicmt-tp41.

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In this paper, design, technology and properties of multi cantilever transducer for energy harvesting application were described. The piezoelectric transducer was made in LTCC (Low Temperature Cofired Ceramics) technology using PZT (Lead Zirconate-Titanate) based tape. In such devices the highest power can be reached at resonance frequencies of the cantilevers. Eight bimorph transducers with lengths corresponding to 33, 50, 58, 66, 75, 82, 91 and 100 Hz resonant frequency, were designed. The transducers were polarized in serial or parallel configuration. To avoid voltage reduction in the syste

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6

Ge, Chang. "Numerical Simulation of Vibration Deflection Effects on the Energy Efficiency of Ultrasonic Transducer for Sonochemistry." Mathematical Problems in Engineering 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/591352.

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The energy efficiency of ultrasound transducers for sonochemistry applications was studied from the point of view of vibration deflection effects of different transducer structures, including the configurations of rectangular plate, cylindrical shell, triangular strip array, rectangular strip array, and pentagonal strip array. It was found that the deflections are not uniform over the transducer surface with the maximum deflection locating at the geometry center of transducers. The simulated maximum deflection of rectangular plate results in the value of2.5×10-16, which is larger than the maxi

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Pan, Jingxi. "Performance Analysis and Prospect of Piezoelectric Ultrasonic Transducers Based on Vibration Modes." Academic Journal of Science and Technology 6, no. 1 (2023): 40–44. http://dx.doi.org/10.54097/ajst.v6i1.8280.

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With the maturity of ultrasonic transducer technology, as a traditional ultrasonic transducer, piezoelectric ultrasonic transducer has leaped into the public view. This article briefly summarizes the development of ultrasonic transducers and the classification of piezoelectric ultrasonic transducers. In practical applications, different piezoelectric ultrasonic transducers are mostly selected based on the different sound source vibrations in the application scenarios. The principle analysis and structure introduction of longitudinal vibration type ultrasonic transducers, longitudinal bending v

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8

Li, Si Zhe, Li Zheng, Dan Li, et al. "Study of Energy Harvesting Using Piezoelectric Cymbal Transducers." Materials Science Forum 687 (June 2011): 396–401. http://dx.doi.org/10.4028/www.scientific.net/msf.687.396.

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The performance of harvesting energy using piezoelectric cymbal transducers has been studied from gentle mechanical vibration under different pre-stress conditions. The cymbal transducer was fixed at 12.9 mm diameter and evaluated the output power of harvesting energy under an AC force of 0.7 N. The maximum power output reached 3.7mW with a slight stress level of 0.17 N across 50 kohm resistor for the cymbal transducer at the 730 Hz. The resonance frequency of the cymbal was shifted to lower value and the harvesting energy was increased with the pre-stress increased. The analytical results wer

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9

Yurikov, Alexey, Nazanin Nourifard, Marina Pervukhina, and Maxim Lebedev. "Laboratory ultrasonic measurements: Shear transducers for compressional waves." Leading Edge 38, no. 5 (2019): 392–99. http://dx.doi.org/10.1190/tle38050392.1.

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The ultrasonic measurements technique is well established to measure the elastic properties of rocks in the laboratory for seismic and well-log data interpretation. The key components of every laboratory ultrasonic setup are piezoelectric transducers, which generate and register elastic waves in rock samples. The elastic properties of rocks are determined through the velocities of elastic waves, which are measured by the times of the waves' travel from the source to the receiver transducer. Transducers can be specifically designed to generate P-waves (P-transducers) or S-waves (S-transducers).

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10

Nek Daud, Nik Fakhri, Ruzlaini Ghoni, Mohd Tarmizi Ibrahim, and Wan Raihan Wan Shaaidi. "Piezoelectric transducer comparison for vibrational motion energy harvesting." Journal of Physics: Conference Series 2319, no. 1 (2022): 012016. http://dx.doi.org/10.1088/1742-6596/2319/1/012016.

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Abstract Mechanical waste energy can be used to generate naturally responsive power. Vibration is a frequent type of mechanical energy source. This work describes the use of unimorph, bimorph, and ceramic disc piezoelectric transducers to capture vibrational motion energy to fulfil the energy requirements of mobile electronic gadgets. The piezoelectric transducer is one of the most widely utilised mechanisms for vibration energy collecting due to its design versatility. The ability to collect vibration energy from motorcycle engines was conceptually and experimentally assessed on different mot

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11

Onoda, Junjiro, Shigeru Shimose, and Kenji Minesugi. "Optimal configuration and combination of piezoelectric transducer and inductor for synchronized-switch-damping-on-an-inductor technique." Journal of Intelligent Material Systems and Structures 28, no. 7 (2016): 888–906. http://dx.doi.org/10.1177/1045389x16666173.

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This article describes the optimal configuration and combination of piezoelectric transducers and inductors for the synchronized-switch-damping-on-an-inductor technique. The technique suppresses structural vibrations by inverting the polarity of the electric voltage in a piezoelectric transducer using a switched inductive shunt circuit at each displacement extremum. The energy dissipation rate of synchronized switch damping on an inductor depends on the impedances of the transducer and the inductor in the circuit, especially the resistive component, in this inversion. For this study, mathemati

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Cafiso, Salvatore, M. Cuomo, A. Di Graziano, and C. Vecchio. "Experimental Analysis for Piezoelectric Transducers Applications into Roads Pavements." Advanced Materials Research 684 (April 2013): 253–57. http://dx.doi.org/10.4028/www.scientific.net/amr.684.253.

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The purpose of this study is to validate the use of piezoelectric transducers into the road asphalt pavement in terms of effectiveness and production of energy. FEM and laboratory test were conducted for transducers within an asphalt pavement, in order to study traffic load effects, the better suitable position, the pavement materials and environmental factors influence. The energy produced by the piezoelectric transducer within the pavement is very low if referred to a single sample as the one in the experiment and when compared to the amount which can be produced by the transducer not embedd

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Serikuly, Zh, S. A. Kumisbekov, N. B. Mutalov, M. N. Zaurbekov та K. N. Rysaly. "ТҰРАҚТЫ ҚҰРЫЛЫМЫ БАР ЭНЕРГИЯ ТҮРЛЕНДІРГІШ". BULLETIN of D. Serikbayev EKTU 4 (10 грудня 2024): 84–92. https://doi.org/10.51885/1561-4212_2024_4_84.

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Alternative energy sources play an important role in achieving global sustainable development goals. A current area of research is the generation of electricity using wind and vibration energy sources. In this regard, research has been carried out to substantiate the possibility of using an energy converter with a regular structure to convert associated gases into electrical energy. The article discusses the mechanism for converting vibration created by air flow into electrical energy. The conditions for the effective placement of converters in the working area of the installation, the step in

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14

Lu, Chao, and Wei Xu. "A Model for Ultrasonic Testing Conical Transducer and Optimal Design." Key Engineering Materials 467-469 (February 2011): 800–805. http://dx.doi.org/10.4028/www.scientific.net/kem.467-469.800.

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In this paper, a numerical modeling of contact conical transducers is discussed in conjunction with wave propagation analyses by a finite difference method (FDM). Although transducers are the devices to convert electrical energy into mechanical energy and vice versa, attention in this paper is paid mostly to the study of characteristics and parameters of cones and wedges influencing their performance. Cones and wedges inserted between an ultrasonic transducer and the specimen provide the transducer with enhanced capability for point or line contact with the specimen. We study the effect of the

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15

Chen, Yihao, and Shuyu Lin. "The multimode coupled vibration transducer with the higher emission performances at resonant frequencies." Journal of the Acoustical Society of America 157, no. 2 (2025): 1307–21. https://doi.org/10.1121/10.0035568.

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The majority of existing piezoelectric transducers work at a single resonant frequency, and their applications in scenarios with multi-frequency or frequency variation are not fully considered. Moreover, emitting high-energy ultrasound at different frequencies is also crucial. Here, we propose the three-frequency coupled vibration piezoelectric transducer, which exhibits higher emission performances. The proposed transducer is comprised of two rectangular piezoelectric ceramics, which are cut from a piece of rectangular piezoelectric ceramic. We derive the three-dimensional coupled vibration e

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16

Kim, Jinhyuk, and Jungwoo Lee. "Acoustic Power Measurement and Thermal Bioeffect Evaluation of Therapeutic Langevin Transducers." Sensors 22, no. 2 (2022): 624. http://dx.doi.org/10.3390/s22020624.

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We recently proposed an analytical design method of Langevin transducers for therapeutic ultrasound treatment by conducting parametric study to estimate the effect of compression force on resonance characteristics. In this study, experimental investigations were further performed under various electrical conditions to observe the acoustic power of the fully equipped transducer and to assess its heat-related bioeffect. Thermal index (TI) tests were carried out to examine temperature rise and thermal damage induced by the acoustic energy in fatty porcine tissue. Acoustic power emission, TI value

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17

Lim, Soohyun, Yub Je, Min-Jung Sim, et al. "High-Power Characteristics of Piezoelectric Transducers Based on [011] Poled Relaxor-PT Single Crystals." Sensors 25, no. 3 (2025): 936. https://doi.org/10.3390/s25030936.

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[011] poled relaxor-PT single crystals provide superior piezoelectric constants and electromechanical coupling factors in the 32 crystal directions, and also exhibit high electrical stability under compressive stresses and temperature changes. In particular, Mn-doped Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 (Mn:PIN-PMN-PT) single crystals show a superior coercive field (EC ≥ 8.0 kV/cm) and mechanical quality factor (Qm ≥ 1030), making them suitable for high-power transducers. The high-power characteristics of [011] poled single crystals have been verified from a material perspective; thus, fur

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18

Li, Jing, and Changhe Sun. "Design and optimization of an arc-shaped LWD quadrupole acoustic logging transducer." Journal of Physics: Conference Series 2982, no. 1 (2025): 012005. https://doi.org/10.1088/1742-6596/2982/1/012005.

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Abstract The acoustic logging transducer is the core component of the logging-while-drilling (LWD) instruments, which has great influence on the performance of well logging. In this article, an LWD quadrupole acoustic logging transducer composed of a layered structure with one thick metal plate and one high-temperature piezoelectric ceramic plate is proposed, and analyzes the influence of geometric structure parameters on the transducer’s performance using the finite element method. The model analysis results show that the first-order radial resonant frequency is in the range of 5 kHz-9 kHz, w

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19

Li, Shichang, Yu Lan, and Lianjin Hong. "A liquid column resonance transducer driven by Class IV flextensional transducer." Journal of the Acoustical Society of America 154, no. 1 (2023): 401–10. http://dx.doi.org/10.1121/10.0020177.

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A liquid column resonance (LCR) transducer, also referred to as an organ pipe transducer, is a type of transducer that utilizes the liquid column resonance mode to produce acoustic energy underwater. Traditional transducers, such as piezoelectric rings or Janus transducers, are commonly used as the driving source in LCR transducers. A flextensional transducer (FT) is introduced into the LCR transducer as the driving source because of the relatively larger volume velocity at low frequencies. Moreover, the eigen-mode of the Class IV FT is easier to couple with the LCR mode to broaden the bandwid

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20

Yao, Ling, Hong Duo Zhao, Zhan Yu Dong, Yi Fan Sun, and Yuan Fa Gao. "Laboratory Testing of Piezoelectric Bridge Transducers for Asphalt Pavement Energy Harvesting." Key Engineering Materials 492 (September 2011): 172–75. http://dx.doi.org/10.4028/www.scientific.net/kem.492.172.

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This paper presents the test results of the energy converting efficiency of piezoelectric Bridge transducer for harvesting stress driven energy in asphalt pavement. The arc and the trapezoidal Bridge transducer were made for performance comparison. The Bridge transducers were tested by Universal Testing Machine (UTM) under different frequencies and distributed load. The output voltage was recorded by digital storage oscillograph. 4 groups of data were obtained. The maximum output voltage of 232V was recorded from the arc Bridge transducer in the initial laboratory test, which was conducted und

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21

Pham, Thanh Huyen, Thanh Danh Bui, and Toan Thanh Dao. "A High-Reliability Piezoelectric Tile Transducer for Converting Bridge Vibration to Electrical Energy for Smart Transportation." Micromachines 14, no. 5 (2023): 1058. http://dx.doi.org/10.3390/mi14051058.

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Piezoelectric energy transducers offer great potential for converting the vibrations of pedestrian footsteps or cars moving on a bridge or road into electricity. However, existing piezoelectric energy-harvesting transducers are limited by their poor durability. In this paper, to enhance this durability, a piezoelectric energy transducer with a flexible piezoelectric sensor is fabricated in a tile protype with indirect touch points and a protective spring. The electrical output of the proposed transducer is examined as a function of pressure, frequency, displacement, and load resistance. The ma

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22

Jiang, Jian, Jinwei Jiang, Xiaowei Deng, and Zifeng Deng. "Detecting Debonding between Steel Beam and Reinforcing CFRP Plate Using Active Sensing with Removable PZT-Based Transducers." Sensors 20, no. 1 (2019): 41. http://dx.doi.org/10.3390/s20010041.

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Carbon fiber reinforced polymer (CFRP) plates are widely used to retrofit or reinforce steel structures, and the debonding damage between the steel structure and the CFRP plate is a typical failure in strengthening steel structures. This paper proposes a new approach to detecting debonding between a steel beam and a reinforcing CFRP plate by using removable lead zirconate titanate (PZT)-based transducers and active sensing. The removable PZT-based transducers are used to implement the active sensing approach, in which one transducer, as an actuator, is used to generate stress wave, and another

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23

Naifar, Slim, Sonia Bradai, Christian Viehweger, Slim Choura, and Olfa Kanoun. "Evaluation of multiple transducers implementation in a magnetoelectric vibration energy harvester." tm - Technisches Messen 85, no. 9 (2018): 580–89. http://dx.doi.org/10.1515/teme-2017-0080.

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Abstract A novel magnetoelectric (ME) vibration energy harvester employing magnetostrictive and piezoelectric laminate composite transducers is presented for potentially powering wireless sensor systems. The harvester consists of two four-layered Terfenol-D/PZT laminate composite and a magnetic circuit composed by two parallel magnetic springs and two rectangular magnets. The repulsive forces are realized by a magnetic spring for more robustness. In order to realize a high power density, a multiple transducer design with a lateral configuration is proposed. The magnetic flux density and the in

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Tuğcu, M. Barış, and Erol Feyzullahoğlu. "The investigation of effects of humidity and temperature on torque transducers calibration." tm - Technisches Messen 88, no. 3 (2021): 156–63. http://dx.doi.org/10.1515/teme-2020-0077.

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Abstract Torque transducer is mechanical device that converts an energy form to another energy form. Torque transducers are calibrated by using machines such as dead weight calibration machines and reference torque transducer systems. Torque transducers are at risk of being affected by various environmental conditions such as temperature and humidity, and deviating from expected measurement results due to strain gauges on them. These factors should be kept under control, if this is not possible, contribution of ambient temperature and air humidity effects on measurement results should be taken

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25

Brinkman, Kerry K., and Ray A. Larsen. "Interactions of the Energy Transducer TonB with Noncognate Energy-Harvesting Complexes." Journal of Bacteriology 190, no. 1 (2007): 421–27. http://dx.doi.org/10.1128/jb.01093-07.

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ABSTRACT The TonB and TolA proteins are energy transducers that couple the ion electrochemical potential of the cytoplasmic membrane to support energy-dependent processes at the outer membrane of the gram-negative envelope. The transfer of energy to these transducers is facilitated by energy-harvesting complexes, which are heteromultimers of cytoplasmic membrane proteins with homologies to proton pump proteins of the flagellar motor. Although the cognate energy-harvesting complex best services each transducer, components of the complexes (for TonB, ExbB and ExbD; for TolA, TolQ and TolR) are s

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Asry, Anis Maisarah Mohd, Farahiyah Mustafa, Sim Sy Yi, Maizul Ishak, and Aznizam Ahmad. "An investigation of piezoelectric tile with drop test technique for energy harvesting application." International Journal of Power Electronics and Drive Systems (IJPEDS) 14, no. 3 (2023): 1633. http://dx.doi.org/10.11591/ijpeds.v14.i3.pp1633-1638.

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This paper present test and analyses of piezoelectric transducers tile with drop test technique. This piezoelectric tile was tested together with bending mechanism. The bending mechanism was designed using SolidWork software and manufactured by employing 3D printer technology to conduct the evaluation. The piezoelectric transducers connected in a parallel configuration and inserted in piezoelectric tile together with bending mechanism. The drop test employed to test this piezoelectric tile with various loads and speeds. This test conducted based on free fall concept. A wooden box used as a gui

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Anis, Maisarah Mohd Asry, Mustafa Farahiyah, Sy Yi Sim, Ishak Maizul, and Ahmad Aznizam. "An investigation of piezoelectric tile with drop test technique for energy harvesting application." International Journal of Power Electronics and Drive Systems 14, no. 3 (2023): 1633~1638. https://doi.org/10.11591/ijpeds.v14.i3.pp1633-1638.

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This paper present test and analyses of piezoelectric transducers tile with drop test technique. This piezoelectric tile was tested together with bending mechanism. The bending mechanism was designed using SolidWork software and manufactured by employing 3D printer technology to conduct the evaluation. The piezoelectric transducers connected in a parallel configuration and inserted in piezoelectric tile together with bending mechanism. The drop test employed to test this piezoelectric tile with various loads and speeds. This test conducted based on free fall concept. A wooden box used as a gui

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Gao, Xu, Jing Zhou, and Xiao Du. "Simulation and Optimization of Transmitting Transducers for Well Logging." Sensors 24, no. 21 (2024): 6795. http://dx.doi.org/10.3390/s24216795.

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Piezoelectric transducers are commonly used in acoustic well logging. However, the low frequency and narrow range of the acoustic waves limit the achievable detection accuracy. In addition, the low amplitude of the waves causes useful information to be easily masked by noise during detection, which affects the accuracy of geological identification and makes it difficult to detect formations tens of meters away. This paper proposes a microporous liquid–electric transmission transducer, in which the microporous electrode structure generates a powerful shock wave through a high-energy instantaneo

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Göktepe, Mustafa. "Stress Distribution on the Fe Based Amorphous Toroidal Transducer Core." Advances in Materials Science and Engineering 2014 (2014): 1–7. http://dx.doi.org/10.1155/2014/902156.

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The basic principles of sensors are the transmission of energy from one system to another. In general, an electrical signal is produced by the change of a physical property induced by the applied change of a second parameter. In the case of magnetic transducers either the property or the parameter would have a magnetic context. For example, in magnetoelastic toroidal transducers, the induced changes of a physical property, that is, the variation of permeability caused by the applied external force are used to produce a variation in output signal. The linearity, magnitude, sensitivity, and repe

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Freire, R. C. S., G. S. Deep, P. C. Lobo, A. M. N. Lima, J. S. Rocha Neto, and A. Oliveira. "Dynamic Response of a Feedback Thermoresistive Electrical Substitution Pyranometer." Journal of Solar Energy Engineering 120, no. 2 (1998): 126–30. http://dx.doi.org/10.1115/1.2888055.

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Calorimetric pyranometers use plane black thermal sensors which absorb solar radiation. If a thermoresistive transducer (sensor-detector combination) is used, the temperature measured is nearer the true value than for thermoelectric transducers. More importantly, the measurement of electrical power is much more accurate than the measurement of temperature. In commercial platinum (thermoresistive), thin film thermometers, the substrate produces transducer time constants an order of magnitude larger than for the best thermoelectric transducers. Use of an electronic amplifier with the thermoresis

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Sinding, Kyle M., Alison Orr, Luke Breon, and Bernhard R. Tittmann. "Effect of sintering temperature on adhesion of spray-on piezoelectric transducers." Journal of Sensors and Sensor Systems 5, no. 1 (2016): 113–23. http://dx.doi.org/10.5194/jsss-5-113-2016.

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Abstract. Conventionally sol-gel spray-on transducers require a high-temperature (> 700 °C) sintering process; however, this process can affect the microstructure of the substrate material. For mechanical elbows and valves utilized for fluid transport in the energy sector, the components are designed to have a specific microstructure, and deviations from these specifications can create weak points in the system. For this reason it is important to investigate how the temperature of the deposition process affects the substrate. This paper investigates the effect of high-temperature and low-te

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Abadi, Putri Berlian, Denny Darlis, and Mas Sarwoko Suraatmadja. "Green energy harvesting from human footsteps." MATEC Web of Conferences 197 (2018): 11015. http://dx.doi.org/10.1051/matecconf/201819711015.

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The need for a sustainable green energy is increasing, while the availability of energy itself is not comparable to the needs. One of the most rapid activities in human life is footstepping. The large amounts of kinetic energy in term of pressure force are generated in every footstep activities at the crosswalk space, lecture building, office, shopping centre or market area. As an alternative energy that still has not been exploited, these human steps can be used to power some low voltage loads. In this study, a tile constructed with some piezoelectric transducers are designed and implemented

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Sapiński, Bogdan, and Marcin Węgrzynowski. "EXPERIMENTAL SETUP FOR TESTING ROTARY MR DAMPERS WITH ENERGY HARVESTING CAPABILITY." Acta Mechanica et Automatica 7, no. 4 (2013): 241–44. http://dx.doi.org/10.2478/ama-2013-0041.

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Abstract The experimental setup has been developed for laboratory testing of electromechanical energy transducers and rotary magnetorheological (MR) dampers. The design objectives are outlined and the parameters of the key elements of the setup are summarised. The structure of the mechanical and measurement and control systems is presented. Results of functional testing of a newly developed transducer and a MR rotary damper are summarised

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Kim, Jinhyuk, Hyuncheol Bae, Hyuk-Soo Han, and Jungwoo Lee. "Ultrasonic Enhancement of Chondrogenesis in Mesenchymal Stem Cells by Bolt-Clamped Langevin Transducers." Micromachines 14, no. 1 (2023): 202. http://dx.doi.org/10.3390/mi14010202.

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We recently investigated the design and fabrication of Langevin-type transducers for therapeutic ultrasound. Effect of ultrasonic energy arising from the transducer on biological tissue was examined. In this study, the transducer was set to radiate acoustic energy to mesenchymal stem cells (MSCs) for inducing differentiation into cartilage tissue. The average chondrogenic ratio in area was 20.82% in the control group, for which no external stimulation was given. Shear stress was applied to MSCs as the contrast group, which resulted in 42.66% on average with a 25.92% minimum rate; acoustic pres

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Hao, Shaohua, Chao Zhong, Likun Wang, and Lei Qin. "A High-Performance Flexible Hydroacoustic Transducer Based on 1-3 PZT-5A/Silicone Rubber Composite." Sensors 24, no. 7 (2024): 2081. http://dx.doi.org/10.3390/s24072081.

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In recent years, hydroacoustic transducers made of PZT/epoxy composites have been extensively employed in underwater detection, communication, and recognition for their high energy conversion efficiency. Despite the ease with which these transducers can be formed into complex shapes, their lack of mechanical flexibility limits their versatility across various sizes of underwater vehicles. This study introduces a novel flexible piezoelectric composite hydroacoustic transducer (FPCHT) based on a 1-3 PZT-5A/silicone rubber composite and an island–bridge flexible electrode, which can break the lim

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Hess, Isabel, Stephen Chamot, Blake Boren, and Patrick Musgrave. "Generating Electricity with Hydraulically Amplified Self-Healing Electrostatic (HASEL) Transducers." Energies 17, no. 23 (2024): 6130. https://doi.org/10.3390/en17236130.

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This study identifies hydraulically amplified self-healing electrostatic (HASEL) transducers as electricity generators, contrary to their conventional role as actuators. HASELs are soft, variable-capacitance transducers inspired by biological muscles which were developed to mimic the flexibility and functionality of natural muscle tissues. This research characterizes HASELs as generators by reversing their energy conversion mechanism—generating electricity through mechanical deformation. The study assesses the practical laboratory performance of HASELs by analytic modeling and experimental eva

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Bagchi, Arkya, Akash Chowdhary, Abhishek Takki, and Raminder Kaur. "Simulation and Optimization of Ultrasonic Transducer." International Journal of Electrical and Electronics Research 10, no. 3 (2022): 423–28. http://dx.doi.org/10.37391/ijeer.100303.

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The ultrasonic transducers have numerous applications in industries, including medical probes for performing ultrasound scans. One of the significant drawbacks of the ultrasonic transducer is the wastage of a large portion of energy, due to high acoustic impedance, while transmitting ultrasonic waves to the target object. The present study is aimed to investigate the material design of the piezo-composite transducer and improve its performance. Different piezo-composite transducers were simulated in the COMSOL environment by varying input parameters, and three key performance indicators (KPI)

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Arora, Abhishek, and Janardan Kesari. "Design and Development of a Solar Electric Delivery Pod." International Journal of Electrical and Electronics Research 10, no. 3 (2022): 429–37. http://dx.doi.org/10.37391/ijeer.100304.

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The ultrasonic transducers have numerous applications in industries, including medical probes for performing ultrasound scans. One of the significant drawbacks of the ultrasonic transducer is the wastage of a large portion of energy, due to high acoustic impedance, while transmitting ultrasonic waves to the target object. The present study is aimed to investigate the material design of the piezo-composite transducer and improve its performance. Different piezo-composite transducers were simulated in the COMSOL environment by varying input parameters, and three key performance indicators (KPI)

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39

Zărnescu, George-Claudiu, Lucian Pîslaru-Dănescu, and Athanasios Tiliakos. "Modular Electromagnetic Transducer for Optimized Energy Transfer via Electric and/or Magnetic Fields." Sensors 23, no. 3 (2023): 1291. http://dx.doi.org/10.3390/s23031291.

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In this paper, a modular electromagnetic transducer that achieves the optimal transfer of energy from the electric and/or magnetic fields is proposed. Both the magnetic field resonance coupling and the influence of the electric field near the copper transducers of the printed circuit board and inside the FR4-type epoxy material are considered. In our printed arrays of flat transducers, we consider face-to-face capacitances for the study of resonance coupling. Because the space between coil turns is almost double the plate thickness, the coplanar capacitance can be ignored for frequencies under

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Kanchanapradit, Kamin, Worakrit Thida, and Sorasak Danworaphong. "Designing of ultrasonic reactor using machine learning." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 268, no. 6 (2023): 2605–14. http://dx.doi.org/10.3397/in_2023_0381.

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Ultrasonic reactors consist of transducers that emit high-frequency acoustic waves, with designs varying based on their intended application. One such application is extraction, achieved through the cavitation effect generated by the pressure gradients produced by the ultrasound field within the medium. The cavitation effect depends on several physical parameters of the ultrasonic reactor, such as the driving frequency, acoustic energy, liquid medium, transducer attachment locations, and size and shape of the reactor. The proper design of an ultrasonic reactor is complex due to the numerous pa

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ASAR, MUNEVVER ELIF, ZAHRA NOORI, and JAMAL YAGOOBI. "Numerical investigation of the effect of ultrasound on paper drying." March 2022 21, no. 3 (2022): 127–40. http://dx.doi.org/10.32964/tj21.3.127.

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The paper drying process is very energy inefficient. More than two-thirds of the total energy used in a paper machine is for drying paper. Novel drying technologies, such as ultrasound (US) drying, can be assessed numerically for developing next-generation drying technologies for the paper industry. This work numerically illustrates the impact on drying process energy efficiency of US transducers installed on a two-tiered dryer section of a paper machine. Piezoelectric transducers generate ultrasound waves, and liquid water mist can be ejected from the porous media. The drying rate of handshee

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Hoffstadt, Thorben, and Jürgen Maas. "Sensorless force control for dielectric elastomer transducers." Journal of Intelligent Material Systems and Structures 30, no. 9 (2018): 1419–34. http://dx.doi.org/10.1177/1045389x17754255.

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Multilayer stack-transducers made of dielectric elastomers generate considerable tensile forces and deformations when they are electrically stimulated. Thus, due to their capacitive behavior, they are for example energy efficient substitutes for conventional electromagnetic drives and enable various further completely new applications. Within this contribution, we present a sensorless force control for dielectric elastomer stack-transducers driven by a bidirectional flyback-converter. This force control for example can be used as interface for superimposed application-oriented controls. First

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Et. al., D. Sathisha,. "A Novel Method for Electricity Generation from Footsteps Using Piezoelectric Transducers." Turkish Journal of Computer and Mathematics Education (TURCOMAT) 12, no. 2 (2021): 810–17. http://dx.doi.org/10.17762/turcomat.v12i2.1089.

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The process of generation of mechanical energy of human footsteps and converting into electrical energy using piezoelectric transducer is discussed in this paper. This method of generation comes under the Energy scavenging section of renewable resources where wasted energy during regular processes such as heat during exothermic reactions is captured and converted. With the increase in energy consumption from handy electronic devices, the concept of harvesting alternative non-conventional energy in highly density population regions is a new interest of late. The model is a focused spring action

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Lin JiYan, Chen cheng, Guo LinWei, et al. "Research on Acoustic Control of Coupled Vibration System of Transducers Using Acoustic Surface and Topological Defect Structures." Acta Physica Sinica 73, no. 22 (2024): 0. http://dx.doi.org/10.7498/aps.73.20241199.

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How to regulate the sound waves in the coupled vibration system of complex power ultrasonic transducers and design high-performance transducer systems has always been an urgent problem in the field of power ultrasound. Research has found that introducing various defects within the transducer system can improve the performance of the transducer coupled vibration system to a certain extent. However, the drawbacks of high loss, narrow frequency band, and sensitivity to structural parameters limit the further practical application of defect type phononic crystal transducer coupled vibration system

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Lv, Fuzai, Pengfei Zhang, Zhifeng Tang, Yonggang Yue, and Keji Yang. "A Guided Wave Transducer with Sprayed Magnetostrictive Powder Coating for Monitoring of Aluminum Conductor Steel-Reinforced Cables." Sensors 19, no. 7 (2019): 1550. http://dx.doi.org/10.3390/s19071550.

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Aluminum conductor steel-reinforced (ACSR) cables are typically used in overhead transmission lines, requiring stringent non-destructive testing owing to the severe conditions they face. Ultrasonic guided wave inspection provides promising online monitoring of the wire breakage of cables with the advantages of high sensitivity, long-range inspection, and full cross-sectional coverage. It is a very popular method to generate and receive guided waves using magnetostrictive and piezoelectric transducers. However, uniformly coupling the acoustic energy excited by transducers into multi-wire struct

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Mohd Asry, Anis Maisarah, Farahiyah Mustafa, Sy Yi Sim, Maizul Ishak, and Aznizam Mohamad. "Study on footstep power generation using piezoelectric tile." Indonesian Journal of Electrical Engineering and Computer Science 15, no. 2 (2019): 593. http://dx.doi.org/10.11591/ijeecs.v15.i2.pp593-599.

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<span>Electrical energy is important and had been demand increasingly. A lot of energy resources have been wasted and exhausted. An alternative way to generate electricity by using a population of human had been discovered When walking, the vibration that generates between the surface and the footstep is wasted. By utilizing this wasted energy, the electrical energy can be generated and fulfill the demand. The transducer that use to detect the vibration is a piezoelectric transducer. This transducer converts the mechanical energy into electrical energy. When the pressure from the footste

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Lee, Jungwoo, and Jinhyuk Kim. "Theoretical and Empirical Verification of Electrical Impedance Matching Method for High-Power Transducers." Electronics 11, no. 2 (2022): 194. http://dx.doi.org/10.3390/electronics11020194.

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In our prior study, a systematic approach was used to devise Langevin transducers for high-power applications where the energy efficiency was not considered in the design criteria. In this paper, the impedance matching methods are thus proposed to evaluate what matching topology is appropriate for their use. Both the series inductor scheme and low pass filter composed of a series inductor and shunt capacitor are examined as matching circuits. According to MATLAB simulation, the resonance frequency is seen at 36.79 kHz due to a series L circuit, and its associated impedance is reduced by 70.45%

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Ouameur, Mohamed, Daniela Istrate, and François Ziade. "Wideband Current Transducer Traceable Calibration up to 10 A and 1 MHz." Sensors 24, no. 8 (2024): 2608. http://dx.doi.org/10.3390/s24082608.

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Energy efficiency is an important issue in industry, especially with the ever-increasing consumption of electrical energy. The power quality and the traceability of metering devices are essential when integrating energy metering systems for energy efficiency. This management requires an understanding of electrical current events such as pulse and transient currents. Current transducers are widely used to measure these electrical current events up to a few megahertz. Their use makes it possible to measure not only the main current flowing through the transducer, but also the bypass current that

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Li, Feng, Yuxuan Zhang, Yongdong Pan, Jinfeng Zhao, and Xiaoqing Zhang. "Numerical and experimental analysis of focused air-coupled ultrasonic transducer based on cross-linked polypropylene film." AIP Advances 12, no. 3 (2022): 035122. http://dx.doi.org/10.1063/5.0077675.

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Air-coupled ultrasonic transducers based on novel piezoelectrets with extremely small acoustic impedance have some distinctive advantages including no coupling agent, flexibility, and eco-friendliness, compared to conventional ultrasonic transducers. Such advantages make them unique in the applications of nondestructive testing. In this study, a focused air-coupled ultrasonic transducer featuring a sphere-shaped transduction surface is designed by introducing flexible irradiated cross-linked polypropylene (IXPP) films. The characteristic of focusing is evaluated by numerical and experimental a

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Yazib, M. S. A., N. Saudin, M. A. Mohamed, N. A. M. Affendi, L. Mohamed, and H. Mohamed. "Comparative study of vibration energy harvesting on home appliances using piezoelectric energy harvester." Journal of Physics: Conference Series 2550, no. 1 (2023): 012006. http://dx.doi.org/10.1088/1742-6596/2550/1/012006.

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Abstract This project was developed to harvest vibration energy using a piezoelectric energy harvester. The availability of home appliance vibration energy is a promising solution to get clean energy resources to manipulate wasted energy. When the appliances’ vibration hits the piezoelectric energy harvester surface, pressure is applied to the piezoelectric transducers and converts mechanical energy into electrical energy. The piezoelectric energy harvester’s efficiency depends on the availability of the home appliances’ vibration energy; thus, using multiple piezoelectric transducers in serie

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