Pub Date : 2021-12-06DOI: 10.1109/PowerMEMS54003.2021.9658355
N. Shimomura, T. Miyoshi, H. Ashizawa, H. Mitsuya, G. Hashiguchi, Yuji Suzuki, H. Toshiyoshi
A 2-DOF (degree-of-freedom) MEMS vibrational energy harvester has been developed to supply power to a factory monitoring sensor system. Frequency bandwidth is broadened to enhance the output power by designing the spring constant and the mass of the interposer according to the conditions of the vibrational source. A maximum output power of 600 μW is obtained from machines used in a factory.
{"title":"Application of Two Degree-of-Freedom Vibrational Energy Harvesting Theory to Real Environmental Vibration","authors":"N. Shimomura, T. Miyoshi, H. Ashizawa, H. Mitsuya, G. Hashiguchi, Yuji Suzuki, H. Toshiyoshi","doi":"10.1109/PowerMEMS54003.2021.9658355","DOIUrl":"https://doi.org/10.1109/PowerMEMS54003.2021.9658355","url":null,"abstract":"A 2-DOF (degree-of-freedom) MEMS vibrational energy harvester has been developed to supply power to a factory monitoring sensor system. Frequency bandwidth is broadened to enhance the output power by designing the spring constant and the mass of the interposer according to the conditions of the vibrational source. A maximum output power of 600 μW is obtained from machines used in a factory.","PeriodicalId":165158,"journal":{"name":"2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"16 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":"114969600","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 : 2021-12-06DOI: 10.1109/PowerMEMS54003.2021.9658402
Boyue Chen, Yu Jia, Xiaoli Tang, F. Narita, Kanjuro Makihara, Yu Shi
This paper developed a piezoelectric energy harvester based on a PVDF-TrFE microgenerator and carbon fibre reinforced polymers (CFRPs) with optimised layup design. The designed harvester targets on self-powering sensor nodes for aerospace and automotive application. As the main concern, the piezoelectric layer of the microgenerator was spin coated. The microgenerators were adhered to the composite panels to experimentally and numerically assessed the optimised layup for energy harvesting. It was observed that harvester with [45/−45]s layup produced the largest power output under sinusoidal excitation.
{"title":"Multifunctional composites for energy harvesting based on piezoelectric microgenerator","authors":"Boyue Chen, Yu Jia, Xiaoli Tang, F. Narita, Kanjuro Makihara, Yu Shi","doi":"10.1109/PowerMEMS54003.2021.9658402","DOIUrl":"https://doi.org/10.1109/PowerMEMS54003.2021.9658402","url":null,"abstract":"This paper developed a piezoelectric energy harvester based on a PVDF-TrFE microgenerator and carbon fibre reinforced polymers (CFRPs) with optimised layup design. The designed harvester targets on self-powering sensor nodes for aerospace and automotive application. As the main concern, the piezoelectric layer of the microgenerator was spin coated. The microgenerators were adhered to the composite panels to experimentally and numerically assessed the optimised layup for energy harvesting. It was observed that harvester with [45/−45]s layup produced the largest power output under sinusoidal excitation.","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":"122534844","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 : 2021-12-06DOI: 10.1109/PowerMEMS54003.2021.9658401
T. Grzebyk, P. Szyszka, J. Dziuban
This article describes a method of identification of a gas composition based on an optical emission spectroscopy performed in a miniature MEMS plasma generator. Individual components are detected on the bases of characteristic peaks in the optical spectrum. However, determination of exact proportions of components in a gas mixture is much more problematic. Here, we present how to deal with this issue. We show which initial reference tests needs to be done and what signal processing operations are required to derive relative concentration of each gas specie. The developed method was applied to investigate two- and three-component mixtures of carbon dioxide, methane and nitrogen.
{"title":"Identification of a gas composition based on an optical spectrum of plasma generated in MEMS ion spectrometer","authors":"T. Grzebyk, P. Szyszka, J. Dziuban","doi":"10.1109/PowerMEMS54003.2021.9658401","DOIUrl":"https://doi.org/10.1109/PowerMEMS54003.2021.9658401","url":null,"abstract":"This article describes a method of identification of a gas composition based on an optical emission spectroscopy performed in a miniature MEMS plasma generator. Individual components are detected on the bases of characteristic peaks in the optical spectrum. However, determination of exact proportions of components in a gas mixture is much more problematic. Here, we present how to deal with this issue. We show which initial reference tests needs to be done and what signal processing operations are required to derive relative concentration of each gas specie. The developed method was applied to investigate two- and three-component mixtures of carbon dioxide, methane and nitrogen.","PeriodicalId":165158,"journal":{"name":"2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"288 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":"122689175","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 : 2021-12-06DOI: 10.1109/PowerMEMS54003.2021.9658371
J. Pyo, Xuan Wang, Minsoo Kim, M. Allen
We fabricated one-turn-like wire inductor via electrodepositing magnetic core materials, NiFe, on the surface of cylindrical copper wires. The current was applied to flow through a copper wire which generated circumferential magnetic flux around the wire. Control of core thickness and wire lengths showed tunability of inductance values. Compared to an air-core wire inductor (no magnetic core on a wire), 50 μm thick NiFe electroplated wire inductor had 144 times higher inductance values. We also achieved sequential electroplating of NiFe and interlamination layer, polypyrrole, on wire surfaces. Laminated cores showed higher retention of inductance compared to a single layer NiFe core, demonstrating wire inductor’s applicability in high frequency applications. Our one-turn-like wire inductors provide an effective strategy to fabricate micro-inductors in a simple and scalable manner to be integrated for Power system-in-package.
{"title":"Non-lithographic and scalable fabrication of one-turn-like inductor having laminated NiFe core for power converters operating at high frequency","authors":"J. Pyo, Xuan Wang, Minsoo Kim, M. Allen","doi":"10.1109/PowerMEMS54003.2021.9658371","DOIUrl":"https://doi.org/10.1109/PowerMEMS54003.2021.9658371","url":null,"abstract":"We fabricated one-turn-like wire inductor via electrodepositing magnetic core materials, NiFe, on the surface of cylindrical copper wires. The current was applied to flow through a copper wire which generated circumferential magnetic flux around the wire. Control of core thickness and wire lengths showed tunability of inductance values. Compared to an air-core wire inductor (no magnetic core on a wire), 50 μm thick NiFe electroplated wire inductor had 144 times higher inductance values. We also achieved sequential electroplating of NiFe and interlamination layer, polypyrrole, on wire surfaces. Laminated cores showed higher retention of inductance compared to a single layer NiFe core, demonstrating wire inductor’s applicability in high frequency applications. Our one-turn-like wire inductors provide an effective strategy to fabricate micro-inductors in a simple and scalable manner to be integrated for Power system-in-package.","PeriodicalId":165158,"journal":{"name":"2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"56 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":"126243426","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 : 2021-12-06DOI: 10.1109/PowerMEMS54003.2021.9658381
Xinyu Ma, Xingyu Tang, Ziyue Zhang, Anxin Luo, Fei Wang
This paper prototypes a rotational electro magnetic energy harvester for the vibrations at ultra-low frequency with potential applications in marine sensor buoys. It mainly contains three sub-systems: the twist-driving system, the pawl-ratchet clutching system, and the magnet-coil transduction system. When the linear motion of the screw is applied at ultra-low frequency, the twist-driving system and pawl-ratchet clutching system can convert it into the high-speed inertial rotation of the rotor. Then the magnet-coil transduction system can help to harvest the electric energy based on Faraday’s law of electromagnetic induction. In our test, an average output power of 112.2 mW can be achieved with the load resistance of 800 Ω at the excitation frequency of 0.25 Hz.
{"title":"A Rotational Electromagnetic Energy Harvester for The Ultra-low Frequency Vibration","authors":"Xinyu Ma, Xingyu Tang, Ziyue Zhang, Anxin Luo, Fei Wang","doi":"10.1109/PowerMEMS54003.2021.9658381","DOIUrl":"https://doi.org/10.1109/PowerMEMS54003.2021.9658381","url":null,"abstract":"This paper prototypes a rotational electro magnetic energy harvester for the vibrations at ultra-low frequency with potential applications in marine sensor buoys. It mainly contains three sub-systems: the twist-driving system, the pawl-ratchet clutching system, and the magnet-coil transduction system. When the linear motion of the screw is applied at ultra-low frequency, the twist-driving system and pawl-ratchet clutching system can convert it into the high-speed inertial rotation of the rotor. Then the magnet-coil transduction system can help to harvest the electric energy based on Faraday’s law of electromagnetic induction. In our test, an average output power of 112.2 mW can be achieved with the load resistance of 800 Ω at the excitation frequency of 0.25 Hz.","PeriodicalId":165158,"journal":{"name":"2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"42 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":"127680506","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 : 2021-12-06DOI: 10.1109/PowerMEMS54003.2021.9658380
S. Naval, N. Beigh, Ankesh Jain, D. Mallick
Piezoelectric and Triboelectric energy harvesters are efficient in scavenging useful electrical energy from the low-frequency mechanical vibrations scattered in our ambient. Several researchers have compared the performance of a standalone triboelectric and piezoelectric energy harvester operating under very low frequencies (< 5 Hz). However, there have been no reports of comparison between devices designed with the exact same topology and observing the variation in their relative frequency response under varying design parameters and operating conditions. In this paper, we present a comparative study of frequency response of the triboelectric nanogenerators and impact-driven piezoelectric generators. Both these devices are realized as a combination of a cantilever beam and an impact layer. They have a similar operating mechanism in the sense that they involve an impact between a vibrating beam and a rigid impact layer, but the inherent energy generation mechanism in both cases is very different. Due to this, we observe stark differences in the frequency response of these devices at different resonant frequencies and under varying gap lengths and acceleration amplitudes. We have initially explained the basic energy generation mechanism and developed an analytical model for the triboelectric and piezoelectric mechanisms. It is then solved numerically to predict the device operation and validated using device fabrication and experimentation. This is followed by observation, comparison and explanation of their contrasting frequency responses. This study is crucial as it assists in understanding the contrast that exists between the two energy harvesting mechanisms and will hopefully be useful while choosing and designing any piezoelectric/triboelectric device for powering low power wearable sensors from ultra-low frequency, wideband human motions.
{"title":"Comparative Study of Frequency Response of Triboelectric and Piezoelectric Energy Harvesters","authors":"S. Naval, N. Beigh, Ankesh Jain, D. Mallick","doi":"10.1109/PowerMEMS54003.2021.9658380","DOIUrl":"https://doi.org/10.1109/PowerMEMS54003.2021.9658380","url":null,"abstract":"Piezoelectric and Triboelectric energy harvesters are efficient in scavenging useful electrical energy from the low-frequency mechanical vibrations scattered in our ambient. Several researchers have compared the performance of a standalone triboelectric and piezoelectric energy harvester operating under very low frequencies (< 5 Hz). However, there have been no reports of comparison between devices designed with the exact same topology and observing the variation in their relative frequency response under varying design parameters and operating conditions. In this paper, we present a comparative study of frequency response of the triboelectric nanogenerators and impact-driven piezoelectric generators. Both these devices are realized as a combination of a cantilever beam and an impact layer. They have a similar operating mechanism in the sense that they involve an impact between a vibrating beam and a rigid impact layer, but the inherent energy generation mechanism in both cases is very different. Due to this, we observe stark differences in the frequency response of these devices at different resonant frequencies and under varying gap lengths and acceleration amplitudes. We have initially explained the basic energy generation mechanism and developed an analytical model for the triboelectric and piezoelectric mechanisms. It is then solved numerically to predict the device operation and validated using device fabrication and experimentation. This is followed by observation, comparison and explanation of their contrasting frequency responses. This study is crucial as it assists in understanding the contrast that exists between the two energy harvesting mechanisms and will hopefully be useful while choosing and designing any piezoelectric/triboelectric device for powering low power wearable sensors from ultra-low frequency, wideband human motions.","PeriodicalId":165158,"journal":{"name":"2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"5 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":"126842606","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 : 2021-12-06DOI: 10.1109/PowerMEMS54003.2021.9658387
M. Sharone, A. Muhtaroğlu
The emergence of WBANs with health monitoring capabilities has greatly revolutionized health care. Enabling WBAN nodes to be fully autonomous is critical in making this thrust sustainable. However, regular charging of batteries in such systems remains a significant inhibitive factor. In this work, Health Monitoring Energy System (HeMeS) tool previously developed by our group using comprehensive analytical models is utilized to study various energy flow scenarios in a particular health monitoring WBAN node powered by a hybrid thermal-vibrational energy harvester. The use of HeMeS for design space exploration is thus demonstrated for various patient categories, incorporating environmental factors, electronic load activity levels, and system cost/size constraints. The described comprehensive system design approach of incorporating transducer, electronics, user environment and data duty-cycling profiles, is demonstrated to be viable and appealing for delivering sustainable WBANs that directly contribute to climate-neutral society without significantly increasing cost.
{"title":"Design Space Exploration of a Fully Autonomous Health Monitoring WBAN Node with Hybrid Energy Harvesting","authors":"M. Sharone, A. Muhtaroğlu","doi":"10.1109/PowerMEMS54003.2021.9658387","DOIUrl":"https://doi.org/10.1109/PowerMEMS54003.2021.9658387","url":null,"abstract":"The emergence of WBANs with health monitoring capabilities has greatly revolutionized health care. Enabling WBAN nodes to be fully autonomous is critical in making this thrust sustainable. However, regular charging of batteries in such systems remains a significant inhibitive factor. In this work, Health Monitoring Energy System (HeMeS) tool previously developed by our group using comprehensive analytical models is utilized to study various energy flow scenarios in a particular health monitoring WBAN node powered by a hybrid thermal-vibrational energy harvester. The use of HeMeS for design space exploration is thus demonstrated for various patient categories, incorporating environmental factors, electronic load activity levels, and system cost/size constraints. The described comprehensive system design approach of incorporating transducer, electronics, user environment and data duty-cycling profiles, is demonstrated to be viable and appealing for delivering sustainable WBANs that directly contribute to climate-neutral society without significantly increasing cost.","PeriodicalId":165158,"journal":{"name":"2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"44 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":"127016761","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 : 2021-12-06DOI: 10.1109/PowerMEMS54003.2021.9658386
Shanshi Gao, Tianyiyi He, H. Ao, Chengkuo Lee
In this work, a lower-limb motion capturing piezoelectric energy harvester is demonstrated by integration of a 3D printing sliding block-rail mechanical structure with piezoelectric bimorph array. The unique sliding block-rail piezoelectric generator (S-PEG) is superior as converting three-dimensional (3D) lower-limb motion into one-dimensional (1D) linear sliding on the rail, which further activates the vibration of piezoelectric bimorphs for effective energy scavenging. The particularly designed mechanical structure enables to achieve a high-power output of 2.4mW at an extremely low operating frequency (0.75Hz) and reach to 160μC/s of the charging speed on a 1mF capacitor. Moreover, we demonstrate the feasibility of the S-PEG on the lower limb acts as an auxiliary battery to supply the wireless transmission modules for diversified applications. In addition, the capability of the S-PEG is displayed as a practical power source for wearable sensors of low-power Bluetooth temperature and humidity modules. Moving forward to the Internet of Things (IoT) framework, the S-PEG is able to become a promising candidate in the sustainable energy sources to further extend the lifetime of the wearable sensors.
{"title":"Investigation of self-oscillation piezoelectric energy harvesting mechanics for lower-limb motion","authors":"Shanshi Gao, Tianyiyi He, H. Ao, Chengkuo Lee","doi":"10.1109/PowerMEMS54003.2021.9658386","DOIUrl":"https://doi.org/10.1109/PowerMEMS54003.2021.9658386","url":null,"abstract":"In this work, a lower-limb motion capturing piezoelectric energy harvester is demonstrated by integration of a 3D printing sliding block-rail mechanical structure with piezoelectric bimorph array. The unique sliding block-rail piezoelectric generator (S-PEG) is superior as converting three-dimensional (3D) lower-limb motion into one-dimensional (1D) linear sliding on the rail, which further activates the vibration of piezoelectric bimorphs for effective energy scavenging. The particularly designed mechanical structure enables to achieve a high-power output of 2.4mW at an extremely low operating frequency (0.75Hz) and reach to 160μC/s of the charging speed on a 1mF capacitor. Moreover, we demonstrate the feasibility of the S-PEG on the lower limb acts as an auxiliary battery to supply the wireless transmission modules for diversified applications. In addition, the capability of the S-PEG is displayed as a practical power source for wearable sensors of low-power Bluetooth temperature and humidity modules. Moving forward to the Internet of Things (IoT) framework, the S-PEG is able to become a promising candidate in the sustainable energy sources to further extend the lifetime of the wearable sensors.","PeriodicalId":165158,"journal":{"name":"2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"150 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":"114210074","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 : 2021-12-06DOI: 10.1109/PowerMEMS54003.2021.9658391
P. Szyszka, Jakub Jendryka, M. Białas, T. Grzebyk
This article presents preliminary works on utilization of 3D printing and MEMS techniques to obtain compact Quadrupole mass spectrometer (3Dp QMS). Fabricated device consists of a glow discharge ion source, a quadrupole mass analyzer and a Faraday cup detector. Obtained mass spectra already show satisfactory resolution, it is possible to distinguish the components of the air mixture, while there is still prospect of enhancing it by optimizing the ionization conditions or the analysis itself. Design of the device as well as electronics necessary for the analysis are characterized by low complexity, thus there is still place for further miniaturization.
{"title":"Towards 3D printed compact Quadrupole mass spectrometer with MEMS components","authors":"P. Szyszka, Jakub Jendryka, M. Białas, T. Grzebyk","doi":"10.1109/PowerMEMS54003.2021.9658391","DOIUrl":"https://doi.org/10.1109/PowerMEMS54003.2021.9658391","url":null,"abstract":"This article presents preliminary works on utilization of 3D printing and MEMS techniques to obtain compact Quadrupole mass spectrometer (3Dp QMS). Fabricated device consists of a glow discharge ion source, a quadrupole mass analyzer and a Faraday cup detector. Obtained mass spectra already show satisfactory resolution, it is possible to distinguish the components of the air mixture, while there is still prospect of enhancing it by optimizing the ionization conditions or the analysis itself. Design of the device as well as electronics necessary for the analysis are characterized by low complexity, thus there is still place for further miniaturization.","PeriodicalId":165158,"journal":{"name":"2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"22 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":"126423896","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 : 2021-12-06DOI: 10.1109/PowerMEMS54003.2021.9658388
Yunshun Zhang, Xiangshuai Zhao, Wanshu Wang
Energy harvesting from rotating system has been an important topic for realizing the applications of tire monitoring system. This paper proposes a self-tuning stochastic resonance for exploring its principle for further stabilizing the sustainable capability of energy harvesting. The principle of stochastic resonance of a nonlinear system in a rotating environment is studied which is used to increase the energy harvesting efficiency of the cantilever piezoelectric vibrator at low frequencies. The centrifugal force caused by the behavior of ration acting on the end mass of the cantilever changes the equivalent stiffness of the cantilever and thus can tune the stochastic resonance frequency. Through the match-able relationship of non-linear bitable system between the Kramers rate and the external rotation frequency, the optimal centrifugal distance is theoretically obtained. The simulation results show that when the centrifugal distance is 12.11 cm, the effective frequency bandwidth of the system response is broadened to 20–40 rad/s and the output root mean square (RMS) voltage is significantly improved.
{"title":"Rotation-induced-tunable stochastic resonance for stabilizing sustainability of energy harvesting","authors":"Yunshun Zhang, Xiangshuai Zhao, Wanshu Wang","doi":"10.1109/PowerMEMS54003.2021.9658388","DOIUrl":"https://doi.org/10.1109/PowerMEMS54003.2021.9658388","url":null,"abstract":"Energy harvesting from rotating system has been an important topic for realizing the applications of tire monitoring system. This paper proposes a self-tuning stochastic resonance for exploring its principle for further stabilizing the sustainable capability of energy harvesting. The principle of stochastic resonance of a nonlinear system in a rotating environment is studied which is used to increase the energy harvesting efficiency of the cantilever piezoelectric vibrator at low frequencies. The centrifugal force caused by the behavior of ration acting on the end mass of the cantilever changes the equivalent stiffness of the cantilever and thus can tune the stochastic resonance frequency. Through the match-able relationship of non-linear bitable system between the Kramers rate and the external rotation frequency, the optimal centrifugal distance is theoretically obtained. The simulation results show that when the centrifugal distance is 12.11 cm, the effective frequency bandwidth of the system response is broadened to 20–40 rad/s and the output root mean square (RMS) voltage is significantly improved.","PeriodicalId":165158,"journal":{"name":"2021 IEEE 20th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS)","volume":"48 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":"125190177","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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