A memristor based ultrasonic transducer: The memosducer
A memristor based ultrasonic transducer: The memosducer
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基于忆阻器的超声波换能器：memosducer
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
S. Furui
中科院分区：
文献类型：
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作者：
S. Dos Santos;S. Furui
我们提出了一个实验实现的一个新概念的混沌换能器的忆阻器的基础上，并专门致力于优化的超声激励的非线性时间反转基于超声成像。该设计利用了Knowm Inc忆阻器的滞后特性，该忆阻器被认为是用于模拟基本细胞可塑性和生物神经元系统（如人脑）的新的关键电子元件。由于忆阻器在时域中包括非线性和基于记忆的特性的能力，由忆阻器阵列的合适分布激活的复杂时间延迟等效于在波导中的多次散射和多次反射的声学响应，如在混沌腔内部。相反，它是一个障碍，它实际上提高了聚焦性能的时间反射（TR）为基础的非线性弹性波光谱（NEWS）的方法，旨在测量复杂的受损系统的局部非线性签名。因此，基于忆阻器的TR-NEWS设备引起了一种新的聚焦超声波换能器家族，该家族通过记忆特性的存在而被修改。与忆电容器和忆电感器一样，忆传感器构成了基于存储器的改进的新一代超声换能器器件，致力于非线性声学成像。
We suggest an experimental realization for a new concept of chaotic transducer based on memristors and specifically devoted to the optimization of ultrasonic excitation involved in nonlinear time reversal based ultrasonic imaging. The design utilizes hysteretic properties of a Knowm Inc memristor, considered as the new key electronic component used in mimicking elementary cells plasticity and biological neuronal systems as human brain. Due to the memristor ability to include nonlinear and memory based properties in the time domain, complex time delays activated by a suitable distribution of array of memristors is equivalent to the acoustic response of multiple scattering and multiple reflections in waves guides as inside chaotic cavities. Instead being an hindrance, it actually improves the focusing properties of the Time Reversal (TR) based Nonlinear Elastic Wave Spectroscopy (NEWS) methods aim at measuring local nonlinear signature of complex damaged systems. Consequently, the memristor based TR-NEWS device induces a new focusing family of ultrasonic transducers modified by the presence of memory properties. Like the memcapacitor and the meminductor, the memosducer constitutes the memory based improved new generation of ultrasonic transducing devices devoted to nonlinear acoustic imaging.