2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)最新文献

Multi-Objective Design Optimization of Fractal-based Piezoelectric Energy Harvester 基于分形的压电能量采集器多目标设计优化

2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS) Pub Date : 2021-12-06 DOI: 10.1109/PowerMEMS54003.2021.9658390

Bogdan Pamfil, Richard Palm, A. Vyas, H. Staaf, C. Rusu, P. D. Folkow

引用次数: 0

Wireless Power Transfer by Self-biased Magnetoelectric Laminate for Biomedical Implants 生物医学植入物自偏置磁电层压板的无线电力传输

2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS) Pub Date : 2021-12-06 DOI: 10.1109/PowerMEMS54003.2021.9658356

Orpita Saha, Erik Andersen, S. Roundy

引用次数: 2

Multi-Functional Hybridized Units for Self- Sustainable IoT Sensing and Ultra-Low Frequency Energy Harvesting 用于自我可持续物联网传感和超低频能量收集的多功能混合单元

2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS) Pub Date : 2021-12-06 DOI: 10.1109/PowerMEMS54003.2021.9658392

Xinge Guo, Fei Wang, Huicong Liu, Chengkuo Lee

引用次数: 0

Complex Impedance Matching for Far-Field Acoustic Wireless Power Transfer 远场声学无线电力传输的复杂阻抗匹配

2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS) Pub Date : 2021-12-06 DOI: 10.1109/PowerMEMS54003.2021.9658395

A. Y. Pandiyan, M. Kiziroglou, E. Yeatman

{"title":"Complex Impedance Matching for Far-Field Acoustic Wireless Power Transfer","authors":"A. Y. Pandiyan, M. Kiziroglou, E. Yeatman","doi":"10.1109/PowerMEMS54003.2021.9658395","DOIUrl":"https://doi.org/10.1109/PowerMEMS54003.2021.9658395","url":null,"abstract":"In this study, different load matching techniques are analysed to identify the optimum method to deliver power to the receiver for acoustic wireless power transfer systems. Complex impedance matching of the system’s transducers provides an advantage to drive the transmitter off-resonance for cases where there is a resonance mismatch between the transducers due to make, defect or ambient conditions. By studying the effect of impedance matching for different frequencies near the resonance frequency, similar power levels can be achieved for a wider bandwidth of frequencies using complex impedance matching. Thus, increased power can be delivered to the receiver by controlling the frequency of the transmitter, which can be exploited for beam steering along the propagation axis when standing waves are prominent between the transducers. A summary of the power experimentally extracted for the different loading techniques presented in this paper demonstrates a 4 kHz increase in system bandwidth and 140% more power can be delivered by tuning both transducers with complex impedance matching.","PeriodicalId":165158,"journal":{"name":"2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131820281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Magnetic Flux Guidance Using H Structures for Miniature Transducers 基于H结构的微型换能器磁导

2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS) Pub Date : 2021-12-06 DOI: 10.1109/PowerMEMS54003.2021.9658358

S. Wright, M. Kiziroglou, E. Yeatman

{"title":"Magnetic Flux Guidance Using H Structures for Miniature Transducers","authors":"S. Wright, M. Kiziroglou, E. Yeatman","doi":"10.1109/PowerMEMS54003.2021.9658358","DOIUrl":"https://doi.org/10.1109/PowerMEMS54003.2021.9658358","url":null,"abstract":"Limited magnetic flux has been a significant restriction in the applicability of scaled-down inductive energy, sensing and actuating devices. Magnetic flux concentration could potentially address this challenge by offering higher flux density B and thereby higher transduction power density, sensitivity and force in the small scale. In this paper, a study of flux concentration from a flux path perspective is presented. Numerical simulations show that high permeability cylindrical cores can achieve a flux concentration ratio in the scale of their aspect ratio, as they gather flux from their reachable vicinity. Flux guiding structures such as H-shapes can concentrate the flux incident to their surface and guide it through a small cross-section, achieving a higher concentration ratio. In an experimental study, a flux concentration factor of 6 is reported using a single 5 mm diameter, 20 mm high cylinder, and an additional increase factor of 4.3 from the addition of 70 mm × 12 mm × 2 mm flanges. A total B amplification ratio of 26 is demonstrated. As an application demonstrator, this approach is employed in an inductive energy harvester yielding 11.4 mW average power output (0.3 mW/g) from a 0.12 mT RMS, 800 Hz field.","PeriodicalId":165158,"journal":{"name":"2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124315973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Hydraulic valves design for the operation of an in-ear energy harvesting system 用于入耳式能量收集系统的液压阀设计

2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS) Pub Date : 2021-12-06 DOI: 10.1109/PowerMEMS54003.2021.9658383

T. Avetissian, F. Formosa, Michel Demuynck, Aidin Delnavaz, J. Voix, A. Badel

引用次数: 0

A Self-Powered Wearable Device using the Photovoltaic Effect for Human Heath Monitoring 一种利用光伏效应的自供电可穿戴设备用于人体健康监测

2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS) Pub Date : 2021-12-06 DOI: 10.1109/PowerMEMS54003.2021.9658359

Vishal Gyanchandani, S. N. Masabi, Hailing Fu

{"title":"A Self-Powered Wearable Device using the Photovoltaic Effect for Human Heath Monitoring","authors":"Vishal Gyanchandani, S. N. Masabi, Hailing Fu","doi":"10.1109/PowerMEMS54003.2021.9658359","DOIUrl":"https://doi.org/10.1109/PowerMEMS54003.2021.9658359","url":null,"abstract":"Wearable monitors have revolutionized the healthcare industry with help of non-invasive measurement technologies. However, the adoption of these vital monitors faces challenges such as high-power consumption and limited battery lifetime. In this paper, to overcome these challenges, a self-powered wearable monitoring system is designed, integrated, and experimentally validated. The system includes a photovoltaic panel (PV), a DC-DC converter, supercapacitors, a pulse sensor, an accelerometer, a microcontroller unit and a Bluetooth module to extract critical physiological parameters, including heart rate, oxygen saturation, activity of daily living and deliver wireless data access to a mobile device. A theoretical model of the energy balance model was established to realize the balance between the energy harvesting capability and sensing power consumption. In an experimental study, a 50 F supercapacitor stored 430 J in 4 hours (29.9 mW) using a PV energy harvester at 500 W/m2, which allows the sensor system (power consumption 5mW) to run sustainably for 24 h.","PeriodicalId":165158,"journal":{"name":"2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129498390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Development of Manufacturing Processes for Vertical Micro-Thermoelectric Generators based on Printed Circuit Boards 基于印刷电路板的立式微型热电发电机制造工艺研究

2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS) Pub Date : 2021-12-06 DOI: 10.1109/PowerMEMS54003.2021.9658353

N. Sherkat, Swathi Krishna Subhash, Timo Gerach, U. Pelz, P. Woias

引用次数: 2

Textile-based Radio Frequency Energy Harvesting and Storage using Ultra-Compact Rectennas with High Effective-to-Physical Area Ratio 基于纺织品的射频能量收集和存储，使用具有高有效与物理面积比的超紧凑整流天线

2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS) Pub Date : 2021-12-06 DOI: 10.1109/PowerMEMS54003.2021.9658367

Mahmoud Wagih, N. Hillier, A. Weddell, S. Beeby

{"title":"Textile-based Radio Frequency Energy Harvesting and Storage using Ultra-Compact Rectennas with High Effective-to-Physical Area Ratio","authors":"Mahmoud Wagih, N. Hillier, A. Weddell, S. Beeby","doi":"10.1109/PowerMEMS54003.2021.9658367","DOIUrl":"https://doi.org/10.1109/PowerMEMS54003.2021.9658367","url":null,"abstract":"Wearable Radio Frequency (RF) rectennas do not require expensive or hazardous materials and can be easily integrated with conventional e-textiles. In this paper, we investigate the use of ultra-miniaturized wire-type monopole antennas for energy harvesting (EH) applications, as a method maximizing the effective collection area of a rectenna relative to its physical size, while not reducing the net DC output. The rectenna, operating in the 915 MHz band, is integrated with a simple carbon-based e-textile supercapacitor for direct energy conversion and storage. The integrated module is then demonstrated, for the first time, wirelessly-charging a Bluetooth Low Energy sensor node at over 1 m distance from a license-free Powercast transmitter. The 14.1 mF supercapacitor is charged using the e-textile rectenna filament in 83 s up to 4.14 V, from an incident power density of 23.9 μW/cm2 and a time-averaged efficiency over 40%, enabling the sensor node to sustain operation for 108 s after the wireless RF source is stopped. Compared to state-of-the-art RF energy harvesters, the proposed module achieves over five fold improvement in the RF to DC power harvesting efficiency normalized to the harvester’s area.","PeriodicalId":165158,"journal":{"name":"2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"2012 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125642032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A Dynamic Transmit Coil for Wirelessly Powering Small ME Transducer based Biomedical Implants 基于生物医学植入物的小型ME换能器无线供电动态传输线圈

2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS) Pub Date : 2021-12-06 DOI: 10.1109/PowerMEMS54003.2021.9658362

Erik Andersen, Orpita Saha, S. Roundy

引用次数: 0