Article
Acoustics
Nengtong Zhao, Bing Gao, Wenhu Yang, Hushen Li
Summary: In this paper, an electro-magneto-mechanical multi-field coupling model is established to guide the design of UMLT. The model fully considers the eddy current effect, multi-GMM rod structure, and other factors. The proposed model is validated through measurement experiments and found to be more effective and accurate than the conventional model. It provides a guideline for the design and analysis of UMLT.
Article
Engineering, Electrical & Electronic
Chenxi Xie, Tianhao Liu, Cuixiang Pei, Zhenmao Chen
Summary: This paper proposes a thin-film magnetostrictive patch transducer for structural health monitoring, which can generate and receive efficient guided wave signals in an aluminum plate. The transducer is lightweight, flexible, and has high transduction efficiency.
IEEE SENSORS JOURNAL
(2022)
Article
Engineering, Electrical & Electronic
Wei Tian, Shuhan Liao, Lei Wang, Xiaoping Zhou, Qianming Xu
Summary: This article proposes an adaptive broadband full-bridge converter impedance matching network for load impedance matching of power amplifiers. The principles of operation, control method, and parameter design method are introduced. The simulation and experimental results validate the effectiveness of the proposed method and show improved power amplifier power utilization factor.
IEEE TRANSACTIONS ON POWER ELECTRONICS
(2022)
Article
Acoustics
Huilin Zhou, Jianfu Zhang, Pingfa Feng, Dingwen Yu, Zhijun Wu
Summary: This study proposes a giant magnetostrictive ultrasonic transducer suitable for rotary ultrasonic machining systems, with a mathematical model established for impedance compensation optimization to maximize the use of ultrasonic energy. Experimental results verify the effectiveness of the optimum compensation capacitance and the ability to obtain the resonance zone with the lowest energy consumption.
Article
Engineering, Electrical & Electronic
Bao Liang, Zhichao Li, Steve Dixon, Yang Yu, Guofu Zhai
Summary: This short communication introduces a magnetostrictive Fe3O4-film electromagnetic acoustic transducer (EMAT) that can be used on complex shaped parts with uneven or rough surfaces. The high transduction efficiency of the proposed EMAT is demonstrated, and the study of varying bias magnetic fields and dynamic alternating magnetic fields optimize the transducer design. The results show a significant nonlinear relationship between the received signal and the bias magnetic field strength, and the amplitude of the received signal varies linearly with the strength of the dynamic magnetic field.
SENSORS AND ACTUATORS A-PHYSICAL
(2023)
Article
Chemistry, Multidisciplinary
Gabriele Baglioni, Makars Siskins, Maurits Houmes, Martin Lee, Dong Hoon Shin, Samuel Manas-Valero, Eugenio M. Coronado, Yaroslav Blanter, Herre S. J. G. van der Zant, Peter Steeneken
Summary: Magnetostrictive coupling has become a sensitive method for studying magnetism in 2D materials by mechanical means. In this study, we optothermally modulate the magnetization in antiferromagnetic 2D material membranes to induce a high-frequency magnetostrictive driving force. The thermo-magnetostrictive effect near the critical temperature of magnetostrictive 2D materials provides a route for more efficient actuation of nano-magnetomechanical devices and studying the coupling among magnetic, mechanical, and thermodynamic degrees of freedom.
Article
Food Science & Technology
Danial Gandomzadeh, Mohammad Hossein Abbaspour-Fard, Abbas Rohani, Yeganeh Sabeghi, Soheil Movahed Fakhr
Summary: Ultrasonic machining has been rapidly developing and finds applications in various fields such as abrasive machining, cleaning, and welding. This research focuses on the construction and evaluation of a magnetostrictive device for reducing residual pesticide on cucumber surface. The performance of the device was assessed using sound pressure level as a measure, and the capability of removing pesticide and changes in cucumber peel texture were evaluated using gas chromatography and scanning electron microscope methods. Promising results were obtained, suggesting the need for further research to enhance the device for commercial use in biomaterials processing operations.
FOOD AND BIOPROCESS TECHNOLOGY
(2023)
Article
Nanoscience & Nanotechnology
Liang Shu, Bo Li, Yeheng Zhang, Hongbi Deng, Menglun Tao
Summary: A magnetostrictive transducer is a highly integrated transducer that converts magneto-mechanical energy during actuation. A control strategy based on variable stiffness tuning mechanism is proposed to ensure high energy efficiency. The internal impedance of the transducer is controlled to match the load impedance, resulting in increased efficiency.
JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES
(2023)
Article
Chemistry, Physical
Hongji Lin, Jian Yang, Hui Zhao, Junming Gou, Yiqun Zhang, Jianan Fu, Fei Sun, Wenqing Ruan, Zhenxuan Zhang, Xiong Liang, Shuai Ren, Tianyu Ma, Jiang Ma, Jun Shen
Summary: In this study, pure metallic magnetostrictive composites with high and tunable performance were fabricated using metallic glass as glue. This method provides a promising strategy for designing new magnetostrictive materials as well as other metal matrix composites with particular properties.
Article
Multidisciplinary Sciences
Zhihe Zhang, Xin Yang, Yukai Chen
Summary: In this paper, a transient equivalent thermal network (TETN) model of giant magnetostrictive transducers (GMTs) is established, taking into account factors such as temperature variations, temperature gradients, and the non-uniform distribution of losses. The accuracy of the TETN model for temporal and spatial analysis of transducer temperature is verified through simulation and experimentation.
SCIENTIFIC REPORTS
(2022)
Article
Materials Science, Characterization & Testing
Renjith Puthusseri, Krishnan Balasubramaniam
Summary: Wall thickness reduction is a major challenge in many industries, and this paper proposes a magnetostrictive patch transducer called the Staircase Magnetostrictive Patch (ScaMP) Transducer to generate a broadband pure shear horizontal wave mode. The patch width is optimized to provide a broadband frequency response. The lowest remnant thickness of the sample is estimated using the cut-off property of the wideband SH1 dispersive guided wave mode. The broad frequency excitation method enables measurement of wall thinning up to 80% of the nominal thickness with a single data acquisition. Experiments on an 8 mm nominal wall thickness aluminium plate with gouge defects show a maximum measurement error of 5.5% for the estimated remnant thickness.
NDT & E INTERNATIONAL
(2023)
Article
Engineering, Electrical & Electronic
Takahiro Yamazaki, Yasubumi Furuya, Seiichi Hata, Wataru Nakao
Summary: This study provides an in-depth understanding of the responsiveness of stress-driven magnetic Barkhausen noise (MBN) to external stress. It demonstrates that ferromagnetic materials with a high magnetostriction constant can be used to develop a high-sensitivity force sensor. By changing the stress rate level, the relationship between the stress rate and the root-mean-square (rms) value of MBN output voltages is determined, showing high sensitivity and acceptable linearity. This research will aid in the development of novel applications for high-sensitivity force sensors.
IEEE TRANSACTIONS ON MAGNETICS
(2022)
Article
Chemistry, Analytical
Yafang Li, Xia Dong, Xiaodong Yu
Summary: The giant magnetostrictive transducer (GMT) has a wide range of applications in precision-fluid-control fields in ultra-precision machining. This study introduces a magnetic-energy-losses method for high frequency GMT, and designs a temperature-stable control system for improved energy transmission and heat dissipation. The study also presents an analysis of the temperature rise characteristics of the transducer based on loss-separation theory and experimental data.
Article
Chemistry, Analytical
Yafang Li, Xia Dong, Xiaodong Yu
Summary: Giant magnetostrictive transducer has wide applications in active vibration control, micro-positioning mechanism, energy harvesting system, and ultrasonic machining. Hysteresis and coupling effects are present in its behavior, making accurate prediction of output characteristics critical. A dynamic characteristic model is proposed based on a modeling methodology capable of characterizing the nonlinearities. The model is verified through theoretical and experimental studies, showing good agreement between calculation results and experimental results.
Article
Chemistry, Multidisciplinary
Tong Xing, Qingfeng Song, Pengfei Qiu, Qihao Zhang, Ming Gu, Xugui Xia, Jincheng Liao, Xun Shi, Lidong Chen
Summary: GeTe-based materials have shown great potential in thermoelectric generators for waste heat recovery. A high-energy conversion efficiency of 7.8% was achieved in a GeTe-based thermoelectric module. By using a high-throughput strategy, Mo was identified as an effective diffusion barrier material, leading to the fabrication of a module with comparable energy conversion efficiency to other materials.
ENERGY & ENVIRONMENTAL SCIENCE
(2021)
