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学者姓名：何存富
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Abstract ：
The mechanical properties of the electrodes are dynamic change during the cycle, which will affect the wave propagation characteristics in the lithium-ion battery. It is feasible for the non-destructive characterization of lithium-ion batteries based on the relationship between the wave characteristic and the state of charge (SOC). In this research, an ultrasonic bulk wave detection technique for detecting the SOC of multi-area lithium-ion batteries using arrayed flexible sensors is proposed. Firstly, the simulation model of type 1-3 piezoelectric composites was established based on the finite element simulation software COMSOL, and the effects of different structural parameters, such as piezoelectric phase volume fraction, composite thickness, and piezoelectric column aspect ratio, on their properties were analyzed. Based on the simulation optimization results, a 5x5 1-3 piezoelectric composite sensor was designed and prepared. The ultrasonic bulk wave detection system for lithium-ion batteries was built with the optimized arrayed sensor, and the connection between SOC and wave propagation properties was experimentally investigated, and the inhomogeneity of the SOC of lithium-ion batteries was visualized and analyzed. Furthermore, the ultrasonic flexible sensing detection approach has also been shown to be a sensitive means of determining the SOC of multiarea lithium-ion batteries.
Keyword ：
ultrasonic bulk wave ultrasonic bulk wave 1-3 type flexible array sensors 1-3 type flexible array sensors state of charge state of charge lithium-ion battery lithium-ion battery
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| GB/T 7714 | Gao, Jie , Liu, Xuan , Lyu, Yan et al. SOC Detection of Multi-Regional Lithium-Ion Battery Based on Ultrasonic Flexible Sensing Technology [J]. | 2024 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE, I2MTC 2024 , 2024 . |
| MLA | Gao, Jie et al. "SOC Detection of Multi-Regional Lithium-Ion Battery Based on Ultrasonic Flexible Sensing Technology" . | 2024 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE, I2MTC 2024 (2024) . |
| APA | Gao, Jie , Liu, Xuan , Lyu, Yan , Qiao, Xinzhong , He, Cunfu . SOC Detection of Multi-Regional Lithium-Ion Battery Based on Ultrasonic Flexible Sensing Technology . | 2024 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE, I2MTC 2024 , 2024 . |
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Abstract ：
Ultrasonic surface wave electromagnetic acoustic transducers (EMATs) have been widely utilized in detecting surface defects of metal materials due to their noncontact advantages. However, the signal energy of surface wave EMAT is weak, mainly influenced by energy conversion efficiency. Increasing the number of excitation signal cycles can enhance the signal energy, but it leads to longer pulsewidth and reduced time-domain resolution. Meanwhile, most of the existing studies excite surface waves with a single frequency, and the frequency information components are limited. To overcome these issues, wideband signal is introduced into the design of surface wave EMAT and combined with pulse compression technique to obtain surface wave signals with wideband, high amplitude, and narrow pulsewidth. In this article, a new wideband pulse compression surface wave EMAT (WPCSW-EMAT) is proposed. WPCSW-EMAT replaces the single frequency signal in conventional EMAT with a linear frequency modulation (LFM) signal. Additionally, the equal meander-line coil is replaced by a variable distance meander-line coil, where the distance between adjacent wires matches the frequency change of the LFM signal. Finite element simulation results demonstrate that compared to conventional EMAT, WPCSW-EMAT can obtain pulse compression surface wave signals with wideband frequency, high amplitude, and narrow pulsewidth. The performance verification experiment and defect detection experiment of EMAT were carried out on aluminum plate samples, and the experimental results indicate that the WPCSW signal excited by WPCSW-EMAT is more suitable for nondestructive testing of metal materials.
Keyword ：
Electromagnetic acoustic transducer (EMAT) Electromagnetic acoustic transducer (EMAT) Magnetic fields Magnetic fields Acoustics Acoustics Wideband Wideband pulse compression pulse compression Surface acoustic waves Surface acoustic waves surface waves surface waves Metals Metals Frequency modulation Frequency modulation Wires Wires wideband wideband nondestructive testing nondestructive testing
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| GB/T 7714 | Liu, Zenghua , Guo, Yanhong , Zhao, Xin et al. Development of Wideband Pulse Compression Surface Wave EMAT [J]. | IEEE SENSORS JOURNAL , 2024 , 24 (4) : 5073-5085 . |
| MLA | Liu, Zenghua et al. "Development of Wideband Pulse Compression Surface Wave EMAT" . | IEEE SENSORS JOURNAL 24 . 4 (2024) : 5073-5085 . |
| APA | Liu, Zenghua , Guo, Yanhong , Zhao, Xin , Cheng, Jinjie , Zheng, Kunsong , He, Cunfu . Development of Wideband Pulse Compression Surface Wave EMAT . | IEEE SENSORS JOURNAL , 2024 , 24 (4) , 5073-5085 . |
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Abstract ：
本发明公开了一种用于曲轴轴颈和过渡圆角同步检测的微磁传感器，采用的U型电磁铁的磁芯端部加工成内切面，内切面和轴颈表面接触以形成磁回路。U型电磁铁提供的交变磁场主要沿轴颈环向分布以磁化轴颈表面材料，也部分穿绕过渡圆角区域回到主磁路，穿绕磁场可以对过渡圆角区域材料进行磁化。在U型电磁铁内部配置两组独立的检测元件，分别拾取轴颈表面和圆角处的多类型微磁信号(磁巴克豪森噪声、切向磁场强度、增量磁导率和多频涡流)。本发明公布的传感器可以对曲轴轴颈和过渡圆角进行同步微磁检测，应用于无损评价曲轴轴颈和过渡圆角区域的微观组织及残余应力均匀性。
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| GB/T 7714 | 何存富 , 王晶 , 刘秀成 . 一种用于曲轴轴颈和过渡圆角同步检测的微磁传感器 : CN202310351017.0[P]. | 2023-04-04 . |
| MLA | 何存富 et al. "一种用于曲轴轴颈和过渡圆角同步检测的微磁传感器" : CN202310351017.0. | 2023-04-04 . |
| APA | 何存富 , 王晶 , 刘秀成 . 一种用于曲轴轴颈和过渡圆角同步检测的微磁传感器 : CN202310351017.0. | 2023-04-04 . |
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Abstract ：
The pulsed eddy current (PEC) technique exhibits considerable benefits over conventional eddy current techniques. The structure and dimensional parameters of PEC sensors considerably influence the PEC systems. Conventional PEC sensors are susceptible to background noise of a magnetic excitation field. To strengthen the magnetic gathering ability and improve detection sensitivity, a magnetic shielding shell structure was introduced to PEC sensors. In this study, a novel canister structure and magnetic core-based PEC sensor with magnetic shielding was designed. Finite-element simulation and experimental study were performed subsequently to optimize the design. A 3-D finite-element simulation model was established according to the eddy current detection mechanism and electromagnetic shielding principle. The influence of the PEC sensor structure and size on its detection performance was observed. Next, a 2-D axis-symmetric model was established, and the size of this PEC sensor was optimized by using the orthogonal approach. The results revealed that the detection performance of this PEC sensor could be improved by incorporating an appropriate magnetic shielding mechanism and through the optimization of the sensor size. The research results show that compared with the PEC sensor without magnetic shield, the PEC sensor with magnetic shield developed in this article can obtain higher signal amplitude and can be better applied to surface and subsurface defect detection.
Keyword ：
Finite-element model Finite-element model Magnetic cores Magnetic cores Magnetic shielding Magnetic shielding Magnetic noise Magnetic noise Eddy currents Eddy currents Sensors Sensors pulsed eddy current (PEC) sensor pulsed eddy current (PEC) sensor Magnetic sensors Magnetic sensors nondestructive testing nondestructive testing magnetic shielding magnetic shielding orthogonal experiment orthogonal experiment Magnetic flux density Magnetic flux density
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| GB/T 7714 | Liu, Zenghua , Sun, Lixin , Guo, Yanhong et al. A Magnetic Shielding-Type PEC Sensor With a Canister Structure and Magnetic Core [J]. | IEEE SENSORS JOURNAL , 2023 , 23 (7) : 6697-6705 . |
| MLA | Liu, Zenghua et al. "A Magnetic Shielding-Type PEC Sensor With a Canister Structure and Magnetic Core" . | IEEE SENSORS JOURNAL 23 . 7 (2023) : 6697-6705 . |
| APA | Liu, Zenghua , Sun, Lixin , Guo, Yanhong , Wu, Bin , He, Cunfu . A Magnetic Shielding-Type PEC Sensor With a Canister Structure and Magnetic Core . | IEEE SENSORS JOURNAL , 2023 , 23 (7) , 6697-6705 . |
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Abstract ：
本发明公开了一种考虑过渡特性的铁磁性板材磁滞回线建模方法，具体步骤包括：1)针对磁滞模型中的特征参数，以玻尔兹曼函数或互补误差函数拟合沿深度方向的特征参数分布规律，得到磁特性参数过渡曲线；2)对材料进行分层处理，依据分层结果对磁特性参数过渡曲线进行分段处理，利用各段曲线的平均值对各层材料磁特性参数进行赋值；3)将各层材料的磁特性参数赋值结果代入磁滞模型，计算得到各单层材料的磁滞回线；4)考虑层间的磁场耦合作用，利用各单层材料的磁滞回线叠加计算得到考虑过渡特性的铁磁性板材磁滞回线。本发明可以和已有的多种磁滞模型进行结合，用于解决含表面硬化层、脱碳层的铁磁性板材磁滞回线建模。
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| GB/T 7714 | 刘秀成 , 彭雨杭 , 何存富 . 一种考虑过渡特性的铁磁性板材磁滞回线建模方法 : CN202210352561.2[P]. | 2022-04-05 . |
| MLA | 刘秀成 et al. "一种考虑过渡特性的铁磁性板材磁滞回线建模方法" : CN202210352561.2. | 2022-04-05 . |
| APA | 刘秀成 , 彭雨杭 , 何存富 . 一种考虑过渡特性的铁磁性板材磁滞回线建模方法 : CN202210352561.2. | 2022-04-05 . |
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Abstract ：
本发明公开了一种齿轮力学性能的多频增量涡流图像检测方法，首先，利用齿轮的随炉试样，制备一批次力学性能不同的平板试件，利用传感器提供相互空间正交的低频正弦波磁场(基础磁场)和阶梯式调频磁场(增量磁场)对平板试件进行磁化，测得所有平板试件的多频增量涡流图像；其次，从多频增量涡流图像中提取多项特征参数，建立它们和力学性能指标的关系方程；最后，利用传感器在齿轮本体中测得多频增量涡流图像的特征参数值，代入关系方程计算得到力学性能指标的值。基于本方法，可以实现齿轮力学性能的原位、在线无损检测。
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| GB/T 7714 | 何存富 , 高铭 , 刘秀成 et al. 一种齿轮力学性能的多频增量涡流图像检测方法 : CN202211009177.9[P]. | 2022-08-22 . |
| MLA | 何存富 et al. "一种齿轮力学性能的多频增量涡流图像检测方法" : CN202211009177.9. | 2022-08-22 . |
| APA | 何存富 , 高铭 , 刘秀成 , 陈彬 , 宋亚虎 , 王博 . 一种齿轮力学性能的多频增量涡流图像检测方法 : CN202211009177.9. | 2022-08-22 . |
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Abstract ：
本发明公开了一种应力沿深度分布的微磁检测方法，利用不同微磁参量的敏感深度随励磁频率变化的特性，结合微磁参量的敏感深度归类和应力的逐层反演方法，实现应力沿深度分布的微磁测量。首先，通过实验构建不同检测深度和微磁参量及其励磁频率的关系曲面，依据敏感深度不同，将不同励磁频率条件下的微磁参量进行归类，形成适用于不同敏感深度的独立微磁参量集；其次，标定不同励磁频率条件下各微磁参量和拉、压应力的关系曲线；最后，利用实测的微磁参量数值，基于两类实验标定结果，实现应力的逐层反演，得到应力沿深度的分布结果。本发明可以为铁磁性零部件表面的残余应力沿深度分布的测量提供一种有效的微磁检测手段。
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| GB/T 7714 | 何存富 , 李哲皓 , 刘秀成 . 一种应力沿深度分布的微磁检测方法 : CN202210352566.5[P]. | 2022-04-05 . |
| MLA | 何存富 et al. "一种应力沿深度分布的微磁检测方法" : CN202210352566.5. | 2022-04-05 . |
| APA | 何存富 , 李哲皓 , 刘秀成 . 一种应力沿深度分布的微磁检测方法 : CN202210352566.5. | 2022-04-05 . |
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Abstract ：
本发明公开了一种用于铝合金材料缺陷检测的电磁超声相控阵传感器，其阵元为跑道线圈，该传感器主要由激励线圈和永磁体两部分构成。设计时涉及的参数主要包括单阵元线圈的形式、单阵元线圈导线的间距d、单阵元宽度w、提离距离h、阵列中阵元数目N、阵元间距D，以及永磁体的宽度W和高度H。相对于传统的传感器，本发明所设计的传感器具有的优点主要包括增强了激励信号和接收信号的强度、降低了聚焦声场的旁瓣、提高了缺陷识别能力、具有优异的成像效果等。通过实验，使用该传感器成功实现了对尺寸为200mm×200mm×20mm的6061铝合金件底面尺寸为200mm×2mm×2mm的槽型缺陷进行检测，成像结果清晰的反映了缺陷的位置和形状，验证了所设计传感器的优异性能。
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| GB/T 7714 | 刘增华 , 王铭权 , 郭彦弘 et al. 一种阵元为跑道线圈的电磁超声相控阵传感器 : CN202210472353.6[P]. | 2022-04-29 . |
| MLA | 刘增华 et al. "一种阵元为跑道线圈的电磁超声相控阵传感器" : CN202210472353.6. | 2022-04-29 . |
| APA | 刘增华 , 王铭权 , 郭彦弘 , 吴斌 , 何存富 . 一种阵元为跑道线圈的电磁超声相控阵传感器 : CN202210472353.6. | 2022-04-29 . |
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Abstract ：
本发明公开了一种基于改进的全聚焦算法的风机主轴裂纹成像方法，涉及无损检测领域。本发明首先利用圆形纵波声源固体介质中指向性函数对常规幅值全聚焦算法进行补偿；其次，利用极性一致因子对补偿后的全聚焦算法进行加权，得到改进后的复合全聚焦算法；在主轴端面布置传感器阵列，通过上位机软件控制多通道超声激励接收设备，以全矩阵采集的方式，即一激全收的方式，采集全聚焦数据；分别利用幅值全聚焦算法和本发明所改进的全聚焦算法对数据进行可视化，实现主轴表面开口裂纹及内部倾斜裂纹的成像以及精确量化。本发明能够从直观上判断裂纹的分布情况，同时，全聚焦技术具有检测精度高的优点，基于全聚焦图像对裂纹进行量化的结果更精确。
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| GB/T 7714 | 何存富 , 黄星都 , 吕炎 et al. 一种基于改进的全聚焦算法的风机主轴裂纹成像方法 : CN202210239799.4[P]. | 2022-03-12 . |
| MLA | 何存富 et al. "一种基于改进的全聚焦算法的风机主轴裂纹成像方法" : CN202210239799.4. | 2022-03-12 . |
| APA | 何存富 , 黄星都 , 吕炎 , 宋国荣 , 吴斌 . 一种基于改进的全聚焦算法的风机主轴裂纹成像方法 : CN202210239799.4. | 2022-03-12 . |
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Abstract ：
本发明公开了一种磁各向异性的巴克豪森噪声自动测量方法与装置，利用三相幅值阶梯调制的正弦波电流驱动三磁极电磁铁，在被测材料中形成按一定角速度间歇性旋转的交变磁场。利用位于三磁极磁路几何中心的双轴霍尔元件和感应线圈分别进行交变磁场测量和巴克豪森噪声检测。利用双轴霍尔元件输出电压计算得到交变磁场强度和方向角，将不同方向获得的巴克豪森噪声信号包络线绘制成三维图，实现不同磁场强度条件下材料磁各向异性的评价。本发明既可以用于快速测量铁磁性材料中不同角度的巴克豪森噪声信号，也可以用于评价不同磁场强度条件下材料的磁各向异性。
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| GB/T 7714 | 何存富 , 靳晓坤 , 刘秀成 . 一种磁各向异性的巴克豪森噪声自动测量方法与装置 : CN202210352548.7[P]. | 2022-04-05 . |
| MLA | 何存富 et al. "一种磁各向异性的巴克豪森噪声自动测量方法与装置" : CN202210352548.7. | 2022-04-05 . |
| APA | 何存富 , 靳晓坤 , 刘秀成 . 一种磁各向异性的巴克豪森噪声自动测量方法与装置 : CN202210352548.7. | 2022-04-05 . |
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