Energy harvesting for wearable sensor systems : inductive architectures for the swing excitation of the leg
著者
書誌事項
Energy harvesting for wearable sensor systems : inductive architectures for the swing excitation of the leg
(Advanced microelectronics)
Springer, c2021
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注記
Includes bibliographical references and index
内容説明・目次
内容説明
This book investigates several non-resonant inductive harvester architectures in order to find the magnet coil arrangement that generates the largest power output. The book is useful as a step-by-step guide for readers unfamiliar with this form of energy harvesting, but who want to build their own system models to calculate the magnet motion and, from that, the power generation available for body-worn sensor systems. The detailed description of system model development will greatly facilitate experimental work with the aim of fabricating the design with the highest predicted power output.
Based on the simulated optimal geometry, fabricated devices achieve an average power output of up to 43 mW during walking, an amount of power that can supply modern low-power, body-worn systems.
Experiments were also carried out in industrial applications with power outputs up to 15 mW. In sum, researchers and engineers will find a step-by-step introduction to inductive harvesting and its modeling aspects for achieving optimal harvester designs in an efficient manner.
目次
Abstract1. Introduction
1.1. Literature Review
1.2. Human Gait as an Excitation Source
1.3. Basic Principle and Boundary Conditions
1.4. EH Architectures
1.5. Objectives of this Work and Major Achievements
1.6. Organization of the Book
2. Theory and Modeling
2.1. Differential Equation of Motion
2.2. Friction Model
2.3. Mechanical Hardstops and Integrator Reset Conditions
2.4. Calculating the Magnetic Flux using Finite Element Analysis
2.5. Electromagnetic Coupling Function
2.6. Induced Voltage, Electrical Damping Force and Power Output
2.7. Model Simplifications and Parameter Uncertainties
2.8. Discussion
3. Geometrical Parameter Optimization
3.1. Optimization Procedure
3.2. Optimization Results
3.3. Discussion
4. Experimental Evaluation of Fabricated Architectures
4.1. Introduction
4.2. Swing Harvester Evolution
4.3. Fabrication
4.4. Experimental Results
4.5. Model Revision and Verification
4.6. Discussion
4.7. Outlook - Additional Experiments
5. Second Optimization Run
5.1. HAC1
5.2. HAC3
5.3. HAC5
5.4. HAC6
5.5. Discussion
6. Second Generation HAC Experimental Results
6.1. Fabrication
6.2. Experimental Data
6.3. Conclusion
6.4. Outlook
7. Applications
7.1. Experimental Setup
7.2. Comparison to Human Gait
7.3. Experimental Results
7.4. Discussion
8. Conclusion and Outlook
8.1. Conclusion
8.2. Viable Applications
8.3. Outlook
A. Appendix
B. List of Publications
Bibliography
Nomenclature
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