Pub Date : 2019-12-01DOI: 10.1109/PowerMEMS49317.2019.41031604008
Xutao Mei, Shengxi Zhou, Bo Yang, T. Kaizuka, Kimihiko Nakano
Recently, various nonlinear energy harvesters, which is aimed to provide the power supply for wireless sensors, are designed to harvest rotational energy. However, there are few studies for energy harvesting from rotational motion when the rotational speed is less than 120 rpm (2 Hz). In this paper, an inverse nonlinear piezoelectric energy harvester (PEH) is proposed for enhancing performance in low-frequency rotational motion via the centrifugal softening effect. In addition, according to Lagrange equation, the related theoretical model is derived. Furthermore, the experiments between the forward and inverse configurations in rotational motion are conducted under the rotational speeds ranging from 60 rpm to 160 rpm. The experimental results demonstrate that in low-frequency rotational motion the inverse PEH exhibits outstanding performance with the RMS voltage as high as 5 V, which is enough for powering some wireless sensors. Overall, the centrifugal softening effect is verified to be an effect method for energy harvesting in low-frequency rotational motion.
{"title":"The Centrifugal Softening Effect of an Inverse Nonlinear Energy Harvester in Low-frequency Rotational Motion for Enhancing Performance","authors":"Xutao Mei, Shengxi Zhou, Bo Yang, T. Kaizuka, Kimihiko Nakano","doi":"10.1109/PowerMEMS49317.2019.41031604008","DOIUrl":"https://doi.org/10.1109/PowerMEMS49317.2019.41031604008","url":null,"abstract":"Recently, various nonlinear energy harvesters, which is aimed to provide the power supply for wireless sensors, are designed to harvest rotational energy. However, there are few studies for energy harvesting from rotational motion when the rotational speed is less than 120 rpm (2 Hz). In this paper, an inverse nonlinear piezoelectric energy harvester (PEH) is proposed for enhancing performance in low-frequency rotational motion via the centrifugal softening effect. In addition, according to Lagrange equation, the related theoretical model is derived. Furthermore, the experiments between the forward and inverse configurations in rotational motion are conducted under the rotational speeds ranging from 60 rpm to 160 rpm. The experimental results demonstrate that in low-frequency rotational motion the inverse PEH exhibits outstanding performance with the RMS voltage as high as 5 V, which is enough for powering some wireless sensors. Overall, the centrifugal softening effect is verified to be an effect method for energy harvesting in low-frequency rotational motion.","PeriodicalId":6648,"journal":{"name":"2019 19th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"18 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87426930","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}
Pub Date : 2019-12-01DOI: 10.1109/PowerMEMS49317.2019.92321112609
P. Szyszka, T. Grzebyk, M. Białas, A. Gorecka-Drzazga, J. Dziuban, D. Hasan, Chang-Soon Lee
This paper presents the concept of a MEMS mass spectrometer, which integrates all necessary modules on a single vacuum-sealed chip: a high vacuum micropump, a sample injection system, an ion source, an analyzer and a detector. Our MEMS mass spectrometer chip is fabricated using monocrystalline silicon and borosilicate glass substrates has dimensions of $10 times 10 times35$ mm 3 and internal volume of 0.45 cm 3.
{"title":"Towars Portable Mems Mass Spectrometer","authors":"P. Szyszka, T. Grzebyk, M. Białas, A. Gorecka-Drzazga, J. Dziuban, D. Hasan, Chang-Soon Lee","doi":"10.1109/PowerMEMS49317.2019.92321112609","DOIUrl":"https://doi.org/10.1109/PowerMEMS49317.2019.92321112609","url":null,"abstract":"This paper presents the concept of a MEMS mass spectrometer, which integrates all necessary modules on a single vacuum-sealed chip: a high vacuum micropump, a sample injection system, an ion source, an analyzer and a detector. Our MEMS mass spectrometer chip is fabricated using monocrystalline silicon and borosilicate glass substrates has dimensions of $10 times 10 times35$ mm 3 and internal volume of 0.45 cm 3.","PeriodicalId":6648,"journal":{"name":"2019 19th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"59 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84596994","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}
Pub Date : 2019-12-01DOI: 10.1109/PowerMEMS49317.2019.61547401764
M. García-Barajas, A. M. Trejo-Dominguez, J. Ledesma-García, L. Arriaga, L. Á. Contreras, J. Galindo-de-la-Rosa, N. Arjona, M. Guerra‒Balcázar
Fuel cell-based self-powered electrochemical sensors have attracted considerable attention because contrary to conventional electrochemical sensors, they do not need external power supplies and complex devices due to they operate through the use of electrical output as sensing signal provided by redox reactions in fuel cells. Creatinine has been considered as an indicator of renal function specifically after dialysis, thyroid malfunction and muscle damage. The development of a suitable catalytic material for creatinine sensing able to generate electrical energy from its oxidation is still a challenge. Creatinine can form complexes with different transition metals due to the number of binding sites that coordinate with the metal donor groups such as copper. However, Cu suffers fast oxidation under environmental conditions and thus, the development of Cu alloys is needed. In this work, we developed an electrode with a catalytic ink containing a CuAg bimetallic material as an electrocatalyst for creatinine oxidation. The electrode was evaluated in a fuel cell and creatinine sensing.
{"title":"CuAg electrode for creatinine microfluidic fuel cell based self-powered electrochemical sensor.","authors":"M. García-Barajas, A. M. Trejo-Dominguez, J. Ledesma-García, L. Arriaga, L. Á. Contreras, J. Galindo-de-la-Rosa, N. Arjona, M. Guerra‒Balcázar","doi":"10.1109/PowerMEMS49317.2019.61547401764","DOIUrl":"https://doi.org/10.1109/PowerMEMS49317.2019.61547401764","url":null,"abstract":"Fuel cell-based self-powered electrochemical sensors have attracted considerable attention because contrary to conventional electrochemical sensors, they do not need external power supplies and complex devices due to they operate through the use of electrical output as sensing signal provided by redox reactions in fuel cells. Creatinine has been considered as an indicator of renal function specifically after dialysis, thyroid malfunction and muscle damage. The development of a suitable catalytic material for creatinine sensing able to generate electrical energy from its oxidation is still a challenge. Creatinine can form complexes with different transition metals due to the number of binding sites that coordinate with the metal donor groups such as copper. However, Cu suffers fast oxidation under environmental conditions and thus, the development of Cu alloys is needed. In this work, we developed an electrode with a catalytic ink containing a CuAg bimetallic material as an electrocatalyst for creatinine oxidation. The electrode was evaluated in a fuel cell and creatinine sensing.","PeriodicalId":6648,"journal":{"name":"2019 19th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"116 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77977608","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}
Pub Date : 2019-12-01DOI: 10.1109/PowerMEMS49317.2019.20515807357
J. Pu, Y. Shi, Y. Jia
A prosthetic applying energy harvesting system will benefit from economizing the space to be evacuated for bulky battery instead of smart and portable in situ rechargeable batteries. In addition, fibre reinforced composites for main-body material also take advantages of its strong and lightweight properties for portable usage. This paper demonstrates manufacturing of a smart composite prosthetic leg with energy harvesting capabilities and to investigate the power recovering performance of the carbon-fibre prosthetic. Tests of energy harvesting was based on a vibration shaker where a prosthetic mount by macro fibre composite (MFC) was attached on. Acceleration data collected in terms of running, walking, climbing and walking with weight in hand are utilized to stimulate MFC generating electric power. The results find that running gait recovered the most average power from 420 mW.
{"title":"Energy Harvesting from Kinetics of Prosthetic Leg","authors":"J. Pu, Y. Shi, Y. Jia","doi":"10.1109/PowerMEMS49317.2019.20515807357","DOIUrl":"https://doi.org/10.1109/PowerMEMS49317.2019.20515807357","url":null,"abstract":"A prosthetic applying energy harvesting system will benefit from economizing the space to be evacuated for bulky battery instead of smart and portable in situ rechargeable batteries. In addition, fibre reinforced composites for main-body material also take advantages of its strong and lightweight properties for portable usage. This paper demonstrates manufacturing of a smart composite prosthetic leg with energy harvesting capabilities and to investigate the power recovering performance of the carbon-fibre prosthetic. Tests of energy harvesting was based on a vibration shaker where a prosthetic mount by macro fibre composite (MFC) was attached on. Acceleration data collected in terms of running, walking, climbing and walking with weight in hand are utilized to stimulate MFC generating electric power. The results find that running gait recovered the most average power from 420 mW.","PeriodicalId":6648,"journal":{"name":"2019 19th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"28 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87812688","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}
Pub Date : 2019-12-01DOI: 10.1109/powermems49317.2019.30773702286
X. Yue, Jessica Grzyb, Akaash Padmanabha, J. Pikul
We demonstrate a hermetic packaging strategy for micro energy storage systems that minimizes the packaging volume and increases the active energy storage materials by 2X and 5X compared to the best lab scale microbatteries and commercial pouch cells. The minimal packaging design uses the current collectors as a multifunctional hermetic shell and laser-machined hot melt tape to provide a thin, robust hermetic sealing between current collectors with stronger adhesion to metals than most commercial adhesives. We developed the packaging using commercially available equipment and materials, and created a strategy that can be applied to many kinds of micro energy systems with custom shape configurations. This minimal, versatile packaging has the potential to improve the energy density of current micro energy storage systems for applications ranging from biomedical devices to micro-robots.
{"title":"A minimal volume hermetic packaging design for high energy density micro energy systems","authors":"X. Yue, Jessica Grzyb, Akaash Padmanabha, J. Pikul","doi":"10.1109/powermems49317.2019.30773702286","DOIUrl":"https://doi.org/10.1109/powermems49317.2019.30773702286","url":null,"abstract":"We demonstrate a hermetic packaging strategy for micro energy storage systems that minimizes the packaging volume and increases the active energy storage materials by 2X and 5X compared to the best lab scale microbatteries and commercial pouch cells. The minimal packaging design uses the current collectors as a multifunctional hermetic shell and laser-machined hot melt tape to provide a thin, robust hermetic sealing between current collectors with stronger adhesion to metals than most commercial adhesives. We developed the packaging using commercially available equipment and materials, and created a strategy that can be applied to many kinds of micro energy systems with custom shape configurations. This minimal, versatile packaging has the potential to improve the energy density of current micro energy storage systems for applications ranging from biomedical devices to micro-robots.","PeriodicalId":6648,"journal":{"name":"2019 19th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"10 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88695036","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}
Pub Date : 2019-12-01DOI: 10.1109/powermems49317.2019.61547410899
Miklós Szappanos, János Radó, P. Harmat, J. Volk
In this work we present a wireless, energy harvesting powered solution for vibration analysis. In order to ensure minimal power consumption the system is equipped with our own radiofrequency protocol, which is tailored for the needs of energy harvesting.Our system has a small form factor, all the while containing everything needed for a wireless energy harvesting sensor unit. It has two switchable MEMS accelerometers to ensure minimal power consumption and to maintain wide frequency range if needed. The on-board processing unit with floating point hardware accelerator makes Fourier transformation, thus vibration spectrum analysation efficient. The energy management unit is designed with dual topology, making it able to accept both low and high impedance energy harvesters at the same time (hybrid harvesting). The radiofrequency module may work with our own radio frequency protocol or with the Bluetooth standard (Bluetooth 5, BLE with long range PHY).
{"title":"Self-Powered Vibration Analyser","authors":"Miklós Szappanos, János Radó, P. Harmat, J. Volk","doi":"10.1109/powermems49317.2019.61547410899","DOIUrl":"https://doi.org/10.1109/powermems49317.2019.61547410899","url":null,"abstract":"In this work we present a wireless, energy harvesting powered solution for vibration analysis. In order to ensure minimal power consumption the system is equipped with our own radiofrequency protocol, which is tailored for the needs of energy harvesting.Our system has a small form factor, all the while containing everything needed for a wireless energy harvesting sensor unit. It has two switchable MEMS accelerometers to ensure minimal power consumption and to maintain wide frequency range if needed. The on-board processing unit with floating point hardware accelerator makes Fourier transformation, thus vibration spectrum analysation efficient. The energy management unit is designed with dual topology, making it able to accept both low and high impedance energy harvesters at the same time (hybrid harvesting). The radiofrequency module may work with our own radio frequency protocol or with the Bluetooth standard (Bluetooth 5, BLE with long range PHY).","PeriodicalId":6648,"journal":{"name":"2019 19th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"74 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88968034","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}
Pub Date : 2019-12-01DOI: 10.1109/PowerMEMS49317.2019.51289503157
B. Dong, Qiongfeng Shi, Tianyiyi He, Chengkuo Lee
We study the feasibility of actively and efficiently tuning an aluminum nitride (AlN) photonic modulator using a triboelectric nanogenerator (TENG). By utilizing the Pockels effect in AlN, AlN microring resonator (MRR) modulator can be tuned by the external E-field penetrating through it. The high open-circuit voltage provided by the TENG has synergy with the capacitor nature of AlN MRR modulators. The high voltage can be applied to the AlN modulator with negligible degradation. We demonstrate dynamic modulation of AlN modulator using a textile TENG. The AlN modulator has high fabrication variation tolerance. The hybrid integrated system is not affected by the hand tapping speed on TENG. Dynamic optical switching is realized which is further utilized to demonstrate the optical Morse code transmission. This hybrid integration is a crucial demonstration toward future self-sustainable wearable photonic IC, which will find significant applications in Internet of Things (IoT) and human-machine interface (HMI).
{"title":"Characterization of Aluminum Nitride (AlN) Photonic Modulator as Function of High Voltage from Textile Triboelectric Nanogenerator (TENG)","authors":"B. Dong, Qiongfeng Shi, Tianyiyi He, Chengkuo Lee","doi":"10.1109/PowerMEMS49317.2019.51289503157","DOIUrl":"https://doi.org/10.1109/PowerMEMS49317.2019.51289503157","url":null,"abstract":"We study the feasibility of actively and efficiently tuning an aluminum nitride (AlN) photonic modulator using a triboelectric nanogenerator (TENG). By utilizing the Pockels effect in AlN, AlN microring resonator (MRR) modulator can be tuned by the external E-field penetrating through it. The high open-circuit voltage provided by the TENG has synergy with the capacitor nature of AlN MRR modulators. The high voltage can be applied to the AlN modulator with negligible degradation. We demonstrate dynamic modulation of AlN modulator using a textile TENG. The AlN modulator has high fabrication variation tolerance. The hybrid integrated system is not affected by the hand tapping speed on TENG. Dynamic optical switching is realized which is further utilized to demonstrate the optical Morse code transmission. This hybrid integration is a crucial demonstration toward future self-sustainable wearable photonic IC, which will find significant applications in Internet of Things (IoT) and human-machine interface (HMI).","PeriodicalId":6648,"journal":{"name":"2019 19th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"22 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85281704","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}
Pub Date : 2019-12-01DOI: 10.1109/PowerMEMS49317.2019.82063210089
T. Kosaka, A. Masuda
AbstractThis study presents a novel variable stiffness oscillator for vibration energy harvesting with resonant frequency tunability. Methods of tuning frequency include changing dimensions, moving center of gravity of the proofmass, and adding positive or negative stiffness in electrostatic ways, piezoelectric ways, or magnetic ways. In this study, an EPM-based variable stiffness mechanism for a vibration energy harvester was proposed and applied to a cantilever oscillator to examine its basic performance. It was described that the holding force of the EPM significantly depended on the activation process, and it was important to realize the full activation to exploit the potential performance of the EPM. Then, it was shown that the resonance frequency of the cantilever oscillator can be changed from 26Hz to 42 Hz when the EPM placed in the middle of the beam was fully activated, while the partially activated EPM could not maintain the resonance because of its weak holding force.
{"title":"An EPM-based Variable Stiffness Oscillator for Vibration Energy Harvesting","authors":"T. Kosaka, A. Masuda","doi":"10.1109/PowerMEMS49317.2019.82063210089","DOIUrl":"https://doi.org/10.1109/PowerMEMS49317.2019.82063210089","url":null,"abstract":"AbstractThis study presents a novel variable stiffness oscillator for vibration energy harvesting with resonant frequency tunability. Methods of tuning frequency include changing dimensions, moving center of gravity of the proofmass, and adding positive or negative stiffness in electrostatic ways, piezoelectric ways, or magnetic ways. In this study, an EPM-based variable stiffness mechanism for a vibration energy harvester was proposed and applied to a cantilever oscillator to examine its basic performance. It was described that the holding force of the EPM significantly depended on the activation process, and it was important to realize the full activation to exploit the potential performance of the EPM. Then, it was shown that the resonance frequency of the cantilever oscillator can be changed from 26Hz to 42 Hz when the EPM placed in the middle of the beam was fully activated, while the partially activated EPM could not maintain the resonance because of its weak holding force.","PeriodicalId":6648,"journal":{"name":"2019 19th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"6 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85378378","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}
Pub Date : 2019-12-01DOI: 10.1109/PowerMEMS49317.2019.82063206124
A. Podwin, A. Graja, Dawid Przystupski, D. Lizanets, P. Śniadek, R. Walczak, J. Dziuban
Growing interest in outer space exploration with the use of small scale (1-10 kg), so called, CubeSat nanosatellites can be recently observed. Special attention is paid here mainly to the investigation of widely understandable life development in diverse and harsh space environments [1] –[3]. Application of a miniature lab-on-chip (LOC) instrumentation in this regard appears to be reasonable solution to conduct different and relatively inexpensive biomedical tests in microgravity. As a response, this work presents a multi-functional and full-featured LOC platform ready for the integration with the dedicated nanosatellite system.
{"title":"Lab-on-chip platform as a nanosatellite payload solution for biomedical experiments in outer space","authors":"A. Podwin, A. Graja, Dawid Przystupski, D. Lizanets, P. Śniadek, R. Walczak, J. Dziuban","doi":"10.1109/PowerMEMS49317.2019.82063206124","DOIUrl":"https://doi.org/10.1109/PowerMEMS49317.2019.82063206124","url":null,"abstract":"Growing interest in outer space exploration with the use of small scale (1-10 kg), so called, CubeSat nanosatellites can be recently observed. Special attention is paid here mainly to the investigation of widely understandable life development in diverse and harsh space environments [1] –[3]. Application of a miniature lab-on-chip (LOC) instrumentation in this regard appears to be reasonable solution to conduct different and relatively inexpensive biomedical tests in microgravity. As a response, this work presents a multi-functional and full-featured LOC platform ready for the integration with the dedicated nanosatellite system.","PeriodicalId":6648,"journal":{"name":"2019 19th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"22 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77636332","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}
Pub Date : 2019-12-01DOI: 10.1109/PowerMEMS49317.2019.20515809768
M. A. Halim, J. Samman, S. Smith, D. Arnold
This paper reports the design, fabrication and experimental characterization of an electrodynamic wireless power transmission (WPT) receiver that utilizes a meander-shaped suspension and two piezo-ceramic transducers to achieve up to 8.2 mW/cm$^{3}cdot$ mT2 normalized power density (NPD). The system operates at its torsion mode mechanical resonance of 211 Hz. The 2.5 cm3 prototype generates 3.3 mW average power (1.3 mW/cm3 power density) at a distance of 3 cm from a transmitter coil that is operating at the maximum allowable human exposure limit (a maximum 2 mTrms field generated at the center of the coil). Compared to prior works, the proposed design affords the use of multiple piezo transducers within a compact footprint while maintaining a form factor suitable for low-profile system implementation for bio-implantable and wearable applications.
{"title":"Piezoceramic Electrodynamic Wireless Power Receiver Using Torsion Mode Meandering Suspension","authors":"M. A. Halim, J. Samman, S. Smith, D. Arnold","doi":"10.1109/PowerMEMS49317.2019.20515809768","DOIUrl":"https://doi.org/10.1109/PowerMEMS49317.2019.20515809768","url":null,"abstract":"This paper reports the design, fabrication and experimental characterization of an electrodynamic wireless power transmission (WPT) receiver that utilizes a meander-shaped suspension and two piezo-ceramic transducers to achieve up to 8.2 mW/cm$^{3}cdot$ mT2 normalized power density (NPD). The system operates at its torsion mode mechanical resonance of 211 Hz. The 2.5 cm3 prototype generates 3.3 mW average power (1.3 mW/cm3 power density) at a distance of 3 cm from a transmitter coil that is operating at the maximum allowable human exposure limit (a maximum 2 mTrms field generated at the center of the coil). Compared to prior works, the proposed design affords the use of multiple piezo transducers within a compact footprint while maintaining a form factor suitable for low-profile system implementation for bio-implantable and wearable applications.","PeriodicalId":6648,"journal":{"name":"2019 19th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"34 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73970810","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}
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