A self-powered wireless motion sensor based on a high-surface area reverse electrowetting-on-dielectric energy harvester.
A self-powered wireless motion sensor based on a high-surface area reverse electrowetting-on-dielectric energy harvester.
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DOI：
10.1038/s41598-022-07631-4
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发表时间：
2022-03-08
影响因子：
4.6
通讯作者：
Mahbub I
中科院分区：
文献类型：
--
作者：
Tasneem NT;Biswas DK;Adhikari PR;Gunti A;Patwary AB;Reid RC;Mahbub I
本文介绍了一种能够从低频运动中获取能量的运动传感装置。基于高比表面积反向电介质润湿(REWOD)能量采集技术，液体的机械调制产生交流信号，并在MatLab和COMSOL中进行解析建模和实现。通过使用整流器和DC-DC转换器来给运动传感读出电路通电，从而产生恒定的直流电压。电荷放大器将产生的电荷转换成成比例的输出电压，该输出电压被无线传输到远程接收器。经整流和DC-DC变换后得到的直流电压为3.3V，在5 Hz频率下，整流的功率转换效率(PCE)高达40.26%。能量收集器显示了运动频率和产生的输出功率之间的线性关系，使其非常适合作为自供电可穿戴式运动传感器。
This paper presents a motion-sensing device with the capability of harvesting energy from low-frequency motion activities. Based on the high surface area reverse electrowetting-on-dielectric (REWOD) energy harvesting technique, mechanical modulation of the liquid generates an AC signal, which is modeled analytically and implemented in Matlab and COMSOL. A constant DC voltage is produced by using a rectifier and a DC–DC converter to power up the motion-sensing read-out circuit. A charge amplifier converts the generated charge into a proportional output voltage, which is transmitted wirelessly to a remote receiver. The harvested DC voltage after the rectifier and DC–DC converter is found to be 3.3 V, having a measured power conversion efficiency (PCE) of the rectifier as high as 40.26% at 5 Hz frequency. The energy harvester demonstrates a linear relationship between the frequency of motion and the generated output power, making it highly suitable as a self-powered wearable motion sensor.
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影响因子：
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DOI：
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发表时间：
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