Recently, the reinvigoration of research interest in in strain-mediated composite multiferroic structures resulted in translational magnetoelectric devices with superior performance than their traditional counterparts. Full-filed measurements and visualization of mechanical strain, with a focus at the interface, offer new possibilities for the advancement of magnetoelectric devices regardless of the material system. Here, we report spatiotemporal strain maps of composite magnetoelectric cylinders using a novel approach combining stable laser ultrasonic vibrometer and 2D motion system measurement technique. The physical measurement technique is augmented with a robust analysis algorithm that capable of effectively and consistently detect the interface. With the spatiotemporal maps, we forecast additional utility through the concurrent extraction of polarization and magnetization maps; hence highlighting the complex interactions between the involved order parameters. Understanding the converse magnetoelectric response in strain-mediated composite multiferroics is essential for the development of devices such and motors, antennas, and wireless power transferors. Given the dependence of the converse magnetoelectric response on the strain generation and transduction, mapping the mechanical response is essential for advancement of efficient devices. This mapping approach is challenging due to the dynamic nature of the response as well as the magneto-electro-mechanical coupling. Spatiotemporal maps of in-plane and out-of plane displacement and strain components were measured concurrently off the surface of a composite structure. To generate spatiotemporal strain maps, a laser-ultrasonic vibrometer mounted on a 2D gantry system was employed to map the in-plane and out-of-plane displacement components of a strain-mediated, concentric multiferroic composite cylinder. The strain maps provided insights on the behavior of the strain mediation mechanisms within the investigated composite structure including amplification of the strain due to the disparity in the mechanical properties of the constituents, which will result in a non-uniform distribution of magnetization and polarization responses. Additionally, the method to calculate the strain maps was shown to be robust for different spatial measurement resolutions.

近来，对应变介导的复合多铁性结构的研究兴趣的振兴使得平移磁电装置的性能优于传统的平移磁电装置。以界面为重点的完整的机械应变测量和可视化，无论材料系统如何，都为磁电设备的发展提供了新的可能性。在这里，我们报告使用结合了稳定的激光超声振动计和2D运动系统测量技术的新方法复合磁电圆柱体的时空应变图。物理测量技术通过强大的分析算法得以增强，该算法能够有效且一致地检测界面。有了时空图，通过同时提取极化和磁化图，我们预测了更多的效用；因此突出显示了所涉及的订单参数之间的复杂交互。理解应变介导的复合铁磁中的逆磁电响应对于设备和电动机，天线和无线电力传输器的开发至关重要。考虑到逆磁电响应对应变产生和转导的依赖性，绘制机械响应对于提高有效器件至关重要。由于响应的动态特性以及磁电机电耦合，因此这种映射方法具有挑战性。在复合结构表面同时测量平面内和平面外位移及应变分量的时空图。为了生成时空应变图，采用了安装在2D龙门系统上的激光超声振动计来绘制应变介导的同心多铁复合圆柱体的平面内和平面外位移分量。应变图提供了对所研究的复合结构内的应变介导机制行为的见解，包括由于成分的机械性能差异而导致的应变放大，这将导致磁化和极化响应的不均匀分布。另外，显示出用于计算应变图的方法对于不同的空间测量分辨率是鲁棒的。安装在2D龙门系统上的激光超声振动计用于绘制应变介导的同心多铁复合圆柱体的平面内和平面外位移分量。应变图提供了对所研究的复合结构内的应变介导机制行为的见解，包括由于成分的机械性能差异而导致的应变放大，这将导致磁化和极化响应的不均匀分布。另外，显示出用于计算应变图的方法对于不同的空间测量分辨率是鲁棒的。安装在2D龙门系统上的激光超声振动计用于绘制应变介导的同心多铁复合圆柱体的平面内和平面外位移分量。应变图提供了对所研究的复合结构内的应变介导机制行为的见解，包括由于成分的机械性能差异而导致的应变放大，这将导致磁化和极化响应的不均匀分布。另外，显示出用于计算应变图的方法对于不同的空间测量分辨率是鲁棒的。应变图提供了对所研究的复合结构内的应变介导机制行为的见解，包括由于成分的机械性能差异而导致的应变放大，这将导致磁化和极化响应的不均匀分布。另外，显示出用于计算应变图的方法对于不同的空间测量分辨率是鲁棒的。应变图提供了对所研究的复合结构内的应变介导机制行为的见解，包括由于成分的机械性能差异而导致的应变放大，这将导致磁化和极化响应的不均匀分布。另外，显示出用于计算应变图的方法对于不同的空间测量分辨率是鲁棒的。