68 results found
Kiziroglou M, Becker T, Wright SW, et al., 3D Printed Insulation for Dynamic Thermoelectric Harvesters with Encapsulated Phase Change Materials, IEEE Sensor Letters
Allmen LV, Bailleul G, Becker T, et al., 2017, Aircraft Strain WSN Powered by Heat Storage Harvesting, IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, Vol: 64, Pages: 7284-7292, ISSN: 0278-0046
Iosifidis C, Katsaliaki K, Kollensperger P, et al., 2017, Design of an embedded sensor system for measuring laser scattering on blood cells, ISSN: 0277-786X
© COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only. In this paper, a sensor system architecture for laboratory and in-vivo light scattering studies on blood cells is presented. It aims at correlating Mie scattering to compositional and physiological information of blood cells towards a non-invasive blood-cell counting sensor. An overview of previously reported experimental techniques on light scattering from blood cells is presented. State-of-the-art methods such as differential pulse measurements, vessel pressure optimization identified as promising for enhancing the scattering signal in such measurements. Indicative simulations of Mie scattering by blood cells are presented, illustrating the potential for distinguishing among cells and identifying size distribution. A prototype sensor system based on a 640-660 nm laser light source and a photo diode array is implemented and programmed to obtain mean amplitude and scattering angle measurements.
Kiziroglou ME, Becker T, Yeatman EM, et al., 2017, Comparison of methods for static charge energy harvesting on aircraft, ISSN: 0277-786X
© 2017 SPIE. In this paper, the possibility of using the static charge that accumulates on aircraft during flight as a source to power monitoring sensors is examined. The assessed methods include using a pair of materials with different air-flow charging rates, contact discharging of the fuselage to neutral metallic bodies, charge motion induction by the fuselage field and inductive harvesting of fuselage-to-air corona discharges at static discharge wicks. The installation and potential advantages of each method are discussed. The feasibility of directly charging a storage capacitor from accumulated static charge is studied experimentally, demonstrating a voltage of 25V on a 25nF capacitor.
Kiziroglou ME, Boyle DE, Wright SW, et al., 2017, Acoustic power delivery to pipeline monitoring wireless sensors, ULTRASONICS, Vol: 77, Pages: 54-60, ISSN: 0041-624X
Boyle DE, Kiziroglou ME, Mitcheson PD, et al., 2016, Energy Provision and Storage for Pervasive Computing, IEEE PERVASIVE COMPUTING, Vol: 15, Pages: 28-35, ISSN: 1536-1268
Kiziroglou ME, Becker T, Wright SW, et al., 2016, Thermoelectric Generator Design in Dynamic Thermoelectric Energy Harvesting, ISSN: 1742-6588
© Published under licence by IOP Publishing Ltd. This paper reports an analysis of thermoelectric generator design for dynamic thermoelectric harvesting. In such devices, the available energy for a given temperature cycle is finite and determined by the heat storage unit capacity. It is shown by simulation and experimentally that specific thermoelectric generator designs can increase the energy output, by optimizing the balance between heat leakage and dynamic response delay. A 3D printed, doublewall heat storage unit is developed for the experiments. Output energy of 30 J from 7.5 gr of phase change material, from a temperature cycle between ± 22°C is demonstrated, enough to supply typical duty-cycled wireless sensor platforms. These results may serve as guidelines for the design and fabrication of dynamic thermoelectric harvesters for applications involving environments with moderate temperature fluctuations.
Kiziroglou ME, Elefsiniotis A, Kokorakis N, et al., 2016, Scaling and super-cooling in heat storage harvesting devices, MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS, Vol: 22, Pages: 1905-1914, ISSN: 0946-7076
Becker T, Elefsiniotis A, Kiziroglou ME, 2015, TheRmoelectric Energy Harvesting in Aircraft, Micro Energy Harvesting, Pages: 415-434, ISBN: 9783527672943
© 2015 Wiley-VCH Verlag GmbH & Co. KGaA. All rights reserved. This chapter describes thermoelectric energy harvesting for aeronautical applications. Decentralized electrical energy generation from the environment is a key enabler for creating fully autonomous sensor systems or wireless systems in the aeronautical industry. With reference to the aviation industry, energy harvesting can potentially provide cost reduction not only for manufacturers but also for the airline companies. The chapter begins with a review of aircraft standardization, describing the aircraft environment, followed by an architectural introduction to autonomous wireless sensor nodes and their key features. It presents a recently introduced analytical and theoretical model for thermoelectric harvesting devices. Thermoelectric energy harvesting has shown great potential on different application scenarios. Depending on the environmental conditions, heat dissipation, and sensor requirements, the static or the dynamic energy harvesting approach can be applied in order to build energy autonomous sensor systems.
Jiang H, Kiziroglou ME, Yates DC, et al., 2015, A Motion-Powered Piezoelectric Pulse Generator for Wireless Sensing via FM Transmission, IEEE INTERNET OF THINGS JOURNAL, Vol: 2, Pages: 5-13, ISSN: 2327-4662
Jiang H, Kiziroglou ME, Yates DC, et al., 2015, A NON-HARMONIC MOTION-POWERED PIEZOELECTRIC FM WIRELESS SENSING SYSTEM, 18th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS), Publisher: IEEE, Pages: 710-713
Kiziroglou ME, Boyle DE, Wright SW, et al., 2015, Acoustic energy transmission in cast iron pipelines, 15th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS), Publisher: IOP PUBLISHING LTD, ISSN: 1742-6588
Kiziroglou ME, Elefsiniotis A, Kokorakis N, et al., 2015, Scaling of dynamic thermoelectric harvesting devices in the 1-100 cm(3) range, Conference on Smart Sensors, Actuators, and MEMS VII 1st SPIE Conference on Cyber-Physical Systems, Publisher: SPIE-INT SOC OPTICAL ENGINEERING, ISSN: 0277-786X
Kiziroglou ME, Yeatman EM, 2015, Protection of Electronics from Environmental Temperature Spikes by Phase Change Materials, JOURNAL OF ELECTRONIC MATERIALS, Vol: 44, Pages: 4589-4594, ISSN: 0361-5235
Jiang H, Kiziroglou ME, Yates DC, et al., 2014, A Piezoelectric Pulse Generator and FM Transmission Circuit for Self-Powered BSN Nodes, 11th International Conference on Wearable and Implantable Body Sensor Networks, Publisher: IEEE, Pages: 1-5
Kiziroglou ME, Wright SW, Toh TT, et al., 2014, Design and Fabrication of Heat Storage Thermoelectric Harvesting Devices, IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS, Vol: 61, Pages: 302-309, ISSN: 0278-0046
Toh TT, Wright SW, Kiziroglou ME, et al., 2014, A dual polarity, cold-starting interface circuit for heat storage energy harvesters, SENSORS AND ACTUATORS A-PHYSICAL, Vol: 211, Pages: 38-44, ISSN: 0924-4247
Toh TT, Wright SW, Kiziroglou ME, et al., 2014, Inductive Energy Harvesting for Rotating Sensor Platforms, 14th International Conference on Micro- and Nano-Technology for Power Generation and Energy Conversion Applications (PowerMEMS), Publisher: IOP PUBLISHING LTD, ISSN: 1742-6588
Toh TT, Wright SW, Kiziroglou ME, et al., 2014, Inductive energy harvesting from variable frequency and amplitude aircraft power lines, 14th International Conference on Micro- and Nano-Technology for Power Generation and Energy Conversion Applications (PowerMEMS), Publisher: IOP PUBLISHING LTD, ISSN: 1742-6588
Elefsiniotis A, Kiziroglou ME, Wright SW, et al., 2013, Performance evaluation of a thermoelectric energy harvesting device using various phase change materials, 13th International Conference on Micro and Nano Technology for Power Generation and Energy Conversion Applications (PowerMEMS), Publisher: IOP PUBLISHING LTD, ISSN: 1742-6588
Kiziroglou ME, Elefsiniotis A, Wright SW, et al., 2013, Performance of phase change materials for heat storage thermoelectric harvesting, APPLIED PHYSICS LETTERS, Vol: 103, ISSN: 0003-6951
Toh TT, Wright SW, Kiziroglou ME, et al., 2013, Demo Abstract: Harvesting Energy from Aircraft Power Lines, 1st International Workshop on Energy Neutral Sensing Systems (ENSSys), Publisher: ASSOC COMPUTING MACHINERY
Ilioudis CV, Kiziroglou ME, 2012, LC Oscillator As An Ultra Simple, Low Power Transmitter For Wireless Sensors
Kiziroglou ME, Wright SW, Toh TT, et al., 2012, Heat Storage Power Supply for Wireless Aircraft Sensors, Pages: 472-475
Kiziroglou ME, Yeatman EM, 2012, Materials and techniques for energy harvesting, Functional Materials for Sustainable Energy Applications, Pages: 541-572, ISBN: 9780857090591
Energy harvesting, the collection of small amounts of ambient energy to power wireless devices, is a very promising technology for applications where batteries are impractical, such as body sensor networks and inaccessible remote systems. The performance and potential of energy-harvesting devices depend strongly on the performance and specific properties of materials. In this chapter the important properties and potential of materials used in energy-harvesting devices are reviewed. An introduction to the concept of energy harvesting is given with a special discussion on motion energy-harvesting limits. The state of the art of materials for piezoelectric, electrostatic, thermoelectric and electromagnetic harvesting devices is discussed, with emphasis on desired material properties and corresponding available materials. In addition to the materials required in the energy transduction mechanism itself, the performance of mechanical oscillators at small scales is a critical factor in motion energy harvesting. For this reason, material requirements, performance and limitations for the implementation of low-frequency and broadband mechanical oscillators are reviewed in the final section of this chapter. © 2012 Woodhead Publishing Limited All rights reserved.
He C, Kiziroglou ME, Yates DC, et al., 2011, A MEMS Self-Powered Sensor and RF Transmission Platform for WSN Nodes, IEEE SENSORS JOURNAL, Vol: 11, Pages: 3437-3445, ISSN: 1530-437X
Kiziroglou ME, Samson D, Becker T, et al., 2011, Optimization Of Heat Flow for Phase Change Thermoelectric Harvesters, Seoul, Korea, PowerMEMS, Pages: 454-457
He C, Kiziroglou ME, Yates DC, et al., 2010, MEMS Energy Harvester for Wireless Biosensors, 23rd IEEE International Conference on Micro Electro Mechanical Systems (MEMS 2010), Publisher: IEEE, Pages: 172-175, ISSN: 1084-6999
Kiziroglou ME, He C, Yeatman EM, 2010, Flexible substrate electrostatic energy harvester, ELECTRONICS LETTERS, Vol: 46, Pages: 166-U93, ISSN: 0013-5194
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