可滚动磁电能量采集器作为无线IoT传感器
Rollable Magnetoelectric Energy Harvester as Wireless IoT Sensor
摘要：
也许我们周围最丰富的浪费能源形式是电力传输系统产生的寄生磁噪声。在这项工作中，一个灵活的和可滚动的磁机电纳米发电机（MMENG）为基础的无线物联网传感器已被证明，以捕捉和利用磁噪声。将磁致伸缩镍铁氧体纳米颗粒与压电聚偏乙烯-三氟乙烯共聚物复合，制备了自支撑磁电复合材料。磁电0-3型纳米复合材料的最大ME系数为11.43 mV/cm-0 e，即使在无偏磁场的情况下，由于自偏置效应，也可观察到最大ME系数值的99%。因此，MMENG产生足够的峰峰值开路电压，输出功率密度，并在家用电器（如电水壶）的电源电缆产生的弱低频杂散磁场下成功地操作商用电容器。最后，采集的电信号已被无线传输到智能手机，以证明位置监测系统的建设的可能性。这种具有成本效益且易于集成的方法，具有定制的尺寸和形状的设备配置，预计将在下一代自供电物联网传感器中进行探索，包括植入式生物医学设备和人体健康监测传感系统。
英文摘要：
Perhaps the most abundant form of waste energy in our surrounding is the parasitic magnetic noise arising from electrical power transmission system. In this work, a flexible and rollable magneto-mechano-electric nanogenerator (MMENG) based wireless IoT sensor has been demonstrated in order to capture and utilize the magnetic noise. Free standing magnetoelectric (ME) composites are fabricated by combining magnetostrictive nickel ferrite nanoparticles and piezoelectric polyvinylidene-co-trifluoroethylene polymer. The magnetoelectric 0-3 type nanocomposites possess maximum ME co-efficient of 11.43 mV/cm-Oe. Even, without magnetic bias field 99 % of the maximum ME co-efficient value is observed due to self-bias effect. As a result, the MMENG generates sufficient peak-to-peak open circuit voltage, output power density and successfully operates commercial capacitor under the weak and low frequency stray magnetic field arising from the power cable of home appliances such as, electric kettle. Finally, the harvested electrical signal has been wirelessly transmitted to a smart phone in order to demonstrate the possibility of position monitoring system construction. This cost effective and easy to integrate approach with tailored size and shape of device configuration is expected to be explored in next-generation self-powered IoT sensors including implantable biomedical devices and human health monitoring sensory systems.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
