Publicaciones
- '25Frontiers in Lab on a Chip Technologies
Early-Stage Life Cycle Assessment for Sustainable Design of Wearable Microfluidic Sweat Sensor: Continuous Dehydration Monitoring
Genis Rabost-Garcia, David Sanchez, Victor Nacher, Andrea Fajardo, Oriol Ymbern, Xavier Muñoz-Pascual, Albert Ălvarez-Carulla, Jaime Punter-Villagrasa, Jasmina Casals-TerrĂ©, Ricardo Heredia, Fernando Espinoza, Lia Moreno-Simonet, Pedro L. Cosio, Joan Aureli Cadefau, Max Marwede, Alfredo Edoardo Ongaro - '24Biosensors and Bioelectronics
Paper-based microfluidic electro-analytical device (PMED) for magneto-assay automation: Towards generic point-of-care diagnostic devices
J. Prat-Trunas, K. Arias-Alpizar, Albert Ălvarez-Carulla, J. Orio-Tejada, I. Molina, A. SĂĄnchez-MontalvĂĄ, J. Colomer-Farrarons, F.J. del Campo, P. Ll Miribel-CatalĂ , E. Baldrich - '23Sensors
Novel Sweat-Based Wearable Device for Advanced Monitoring of Athletic Physiological Biometrics
Javier Aguilar-TorĂĄn, Genis Rabost-Garcia, Samantha Toinga-Villafuerte, Albert Ălvarez-Carulla, Valeria Colmena-Rubil, Andrea Fajardo-Garcia, Andrea Cardona-Bonet, Jasmina Casals-TerrĂ©, Xavier Muñoz-Pascual, Pere Miribel-CatalĂ , Jaime Punter-Villagrasa - '23Scientific Reports
High-efficient energy harvesting architecture for self-powered thermal-monitoring wireless sensor node based on a single thermoelectric generator
Albert Ălvarez-Carulla, Albert Saiz-Vela, Manel Puig-Vidal, Jaime LĂłpez-SĂĄnchez, Jordi Colomer-Farrarons, Pere Ll. Miribel-CatalĂ - '22SpringerBriefs in Applied Sciences and Technology
Self-powered Energy Harvesting Systems for Health Supervising Applications
Albert Ălvarez-Carulla, Jordi Colomer-Farrarons, Pere LluĂs Miribel CatalĂ - '22Patent
Self-powered Device and Method for Measuring a Parameter of a Sensing Power Cell
A. Ălvarez-Carulla, Y. Montes-CebriĂĄn, P. Miribel-CatalĂ , J. Colomer-Farrarons, M. Puig-Vidal - '21Sensors
Self-Powered Point-of-Care Device for Galvanic Cell-Based Sample Concentration Measurement
Albert Ălvarez-Carulla, Yaiza Montes-CebriĂĄn, Jordi Colomer-Farrarons, Pere LluĂs Miribel-CatalĂ - '21Patent
Self-powered System and Method for Power Extraction and Measurement of Energy-generator Units
A. Ălvarez-Carulla, P. Miribel-CatalĂ , Y. Montes-CebriĂĄn, J. Colomer-Farrarons - '21Thesis
Energy harvesting solutions for self-powered devices: from structural health monitoring to biomedical applications
Albert Ălvarez-Carulla - '202020 XXXV Conference on Design of Circuits and Integrated Systems (DCIS)
Autonomous self-powered potentiostat architecture for biomedical wearable applications
Javier Aguilar, Albert Ălvarez-Carulla, Valeria Colmena, Oscar Carreras, Genis Rabost, Manel Puig-Vidal, Jordi Colomer-Farrarons, Xavier Muñoz, Pere Miribel-Catala, Jaime Punter-Villagrasa - '20IEEE Transactions on Industrial Electronics
Ubiquitous Self-Powered Architecture for Fuel Cell-Based Point-of-Care Applications
Albert Ălvarez-Carulla, Yaiza Montes-CebriĂĄn, Manel Puig-Vidal, Jordi Colomer-Farrarons, Pere LI. Miribel-CatalĂ - '19Sensors
Competitive USB-Powered Hand-Held Potentiostat for POC Applications: An HRP Detection Case
Yaiza Montes-CebriĂĄn, Albert Ălvarez-Carulla, Gisela Ruiz-Vega, Jordi Colomer-Farrarons, Manel Puig-Vidal, Eva Baldrich, Pere Ll. Miribel-CatalĂ - '19Sensors
Self-Powered Portable Electronic Reader for Point-of-Care Amperometric Measurements
Yaiza Montes-CebriĂĄn, Albert Ălvarez-Carulla, Jordi Colomer-Farrarons, Manel Puig-Vidal, Pere Ll. Miribel-CatalĂ - '18NanoBio&Med 2018
A Portable System for Measuring the Tactile Temporal Discrimination Threshold in Cervical Dystonia
Yaiza Montes-CebriĂĄn, Albert Ălvarez-Carulla, Jordi Colomer-Farrarons, Eugene O'Rourke, Ihedinachi Ndukwe, Sean O'Riordan, Michael Hutchinson, Pere LL. Miribel-CatalĂ , Richard B. Reilly - '182018 Conference on Design of Circuits and Integrated Systems (DCIS)
A Fuel Cell-based adaptable Self-Powered Event Detection platform enhanced for biosampling applications
Y. Montes-CebriĂĄn, A. Ălvarez-Carulla, J. Colomer-Farrarons, M. Puig-Vidal, J. LĂłpez-SĂĄnchez, P. Miribel-CatalĂ - '182018 Conference on Design of Circuits and Integrated Systems (DCIS)
Energy-Aware Adaptative Supercapacitor Storage System for Multi-Harvesting Solutions
Albert Ălvarez-Carulla, Yaiza Montes-CebriĂĄn, Manel Puig-Vidal, Jaime LĂłpez-SĂĄnchez, Jordi Colomer-Farrarons, Pere Miribel-CatalĂ - '18Sensors for Diagnostics and Monitoring
Low-Power Energy Harvesting Solutions for Smart Self-Powered Sensors
Albert Ălvarez-Carulla, Jordi Colomer-Farrarons, Pere LluĂs Miribel CatalĂ - '18Biosensors and Bioelectronics
'Plug-and-Power' Point-of-Care diagnostics: A novel approach for self-powered electronic reader-based portable analytical devices
Yaiza Montes-CebriĂĄn, Lorena del Torno-de RomĂĄn, Albert Ălvarez-Carulla, Jordi Colomer-Farrarons, Shelley D. Minteer, Neus SabatĂ©, Pere Ll. Miribel-CatalĂ , Juan Pablo Esquivel - '16Journal of Physics: Conference Series
Self-Powered Adaptive Switched Architecture Storage
F. El Mahboubi, M. Bafleur, V. Boitier, A. Alvarez, J. Colomer, P. Miribel, J-M. Dilhac - '16Journal of Physics: Conference Series
Self-Powered energy harvester strain sensing device for structural health monitoring
A. Ălvarez, M. Bafleur, J-M. Dilhac, J. Colomer, D. Dragomirescu, J. Lopez, M. Zhu, P. Miribel - '162016 IEEE 25th International Symposium on Industrial Electronics (ISIE)
An adaptative self-powered energy harvester strain sensing device based of mechanical vibrations for structural health monitoring applications
Albert Ălvarez-Carulla, Jordi Colomer-Farrarons, Jaime LĂłpez-SĂĄnchez, Pere Miribel-CatalĂ - '152015 Conference on Design of Circuits and Integrated Systems (DCIS)
Piezoelectric harvester-based self-powered adaptive circuit with wireless data transmission capability for structural health monitoring
Albert Ălvarez-Carulla, Jordi Colomer-Farrarons, Jaime LĂłpez-SĂĄnchez, Pere Miribel-CatalĂ - '152015 IEEE Metrology for Aerospace (MetroAeroSpace)
Piezoelectric Harvester-based structural health monitoring that uses a self-powered adaptive circuit
Albert Ălvarez-Carulla, Jordi Colomer-Farrarons, Jaime LĂłpez-SĂĄnchez, Pere Miribel-CatalĂ
Wearable sweat sensors are gaining traction as new powerful tools for non-invasive monitoring and point-of-care applications. However, their single-use nature and integration complexity raise concerns about sustainability. Guided by design for sustainability principles, we adopted pushed for Life Cycle Assessment (LCA) as a main and pivotal development asset at the design stage of the new generation of wearable sensors. LCA is here is used not as an afterthought, but as a decision-making tool, helping to identify environmentally burdensome components and guide material choices. In this work, we focused on the performance of an integrated capacitive sensor for continuous sweat rate and dehydration monitoring, validating its functionality alongside our efforts to improve its sustainability profile. Specifically, we replace conventional silver-printed electrodes with alternative materials to reduce the environmental footprint of single-use devices while maintaining performance. This research underscores the importance of material selection in the development of sustainable microfluidic-based wearable medical devices and offers a pathway towards a new generation of environmentally conscious Point of Care diagnostics. We i) demonstrate the viability of substituting silver with copper-based laminates and screen-printed graphite as alternatives for the integrated capacitive sweat volume sensor; and we ii) backed it by including a comprehensive LCA tool which focused on the device's manufacturing and assembly processes. Overall, this work provides a practical demonstration of how integrating LCA at the design stage can lower the environmental footprint of wearable sweat sensors, paving the way for scalable, sustainable, and net-zero healthcare technologies.
Rapid diagnostic tests (RDTs) for point-of-care (POC) testing of infectious diseases are popular because they are easy to use. However, RDTs have limitations such as low sensitivity and qualitative responses that rely on subjective visual interpretation. Additionally, RDTs are made using paper-bound reagents, which leads to batch-to-batch variability, limited storage stability and detection of only the analytes they were designed for. This work presents the development of a versatile technology, based on short magneto-assays and inexpensive paper-based microfluidic electro-analytical devices (PMEDs). PMEDs were produced locally using low-cost equipment, they were stable at room temperature, easy to use, and provided quantitative and objective results. The devices served to detect alternatively a variety of magneto-assays, granting quantitation of streptavidin-HRP, biotinylated HRP and Pasmodium falciparum lactate dehydrogenase (Pf-LDH) in less than 25 min, using either commercial or customized screen-printed electrodes and measurement equipment. Furthermore, Pf-LDH detection in diluted lysed whole blood displayed a linear response between 3 and 25 ng mLâ»Âč, detection and quantification limits ranging between 1 and 3 ng mLâ»Âč and 6-12 ng mLâ»Âč, respectively, and provided results that correlated with those of the reference ELISA. In short, this technology is versatile, simple, and highly cost-effective, making it perfect for POC testing.
Blood testing has traditionally been the gold standard for the physiological analysis and monitoring of professional athletes. In recent years, blood testing has moved out of the laboratory thanks to portable handheld devices, such as lactate meters. However, despite its usefulness and widespread use, blood testing has several drawbacks and limitations, such as the need for the athlete to stop exercising for blood extraction and the inability to have data continuously collected. In this scenario, sweat has become an alternative to blood testing because of its rich content of electrolytes and metabolites, as well as small quantities of sugars, proteins, and ions. Nevertheless, there are few devices capable of analyzing this biofluid and providing useful information to users. In this paper, an electronic system designed for the autonomous analysis of sweat electrolytes and metabolites along with heart rate dynamics is presented. This system is part of a novel wearable device tailored for athletes that offers to the user a real-time assessment of their physiological status and performance.
Editorial: MDPI
DOI: 10.3390/s23239473
Publicado: 28 de noviembre de 2023
Volumen: 23
NĂșmero: 23
PĂĄginas: 9473
In recent years, research on transducers and system architectures for self-powered devices has gained attention for their direct impact on the Internet of Things in terms of cost, power consumption, and environmental impact. The concept of a wireless sensor node that uses a single thermoelectric generator as a power source and as a temperature gradient sensor in an efficient and controlled manner is investigated. The purpose of the device is to collect temperature gradient data in data centres to enable the application of thermal-aware server load management algorithms. By using a maximum power point tracking algorithm, the operating point of the thermoelectric generator is kept under control while using its power-temperature transfer function to measure the temperature gradient. In this way, a more accurate measurement of the temperature gradient is achieved while harvesting energy with maximum efficiency. The results show the operation of the system through its different phases as well as demonstrate its ability to efficiently harvest energy from a temperature gradient while measuring it. With this system architecture, temperature gradients can be measured with a maximum error of 0.14 °C and an efficiency of over 92% for values above 13 °C and a single transducer.
Editorial: Nature
Publicado: 30 de enero de 2023
Volumen: 13
NĂșmero: 1637 (2023)
This book highlights the current and recent state-of-the-art developments in energy harvesting systems for health supervising applications. It explores the exciting potential of energy harvesting as a crosscutting field of research to intersect with other areas to envisage new products, solutions, and applications. Among all these new opportunities for synergy, there is a research area that fully matches the features offered by energy harvesting with its power supply's main needs- health supervising (HS), which consists of monitoring the health or operating conditions of anything, such as structures, buildings, public health, environment, etc. The book covers the hand in hand evolution towards a new paradigm: truly self-powered devices based on a single transducer acting as a sensor and as power source simultaneously and efficiently. This evolution is illustrated by the concept and implementation of novel state-of-the-art architecture for self-powered energy harvesting systems for applications that range from structural health monitoring to point-of-care medical devices.
Editorial: Springer
ISBN: 978-981-19-5618-8
Publicado: 29 de septiembre de 2022
A self-powered device and a method for measuring a parameter of a sensing power cell are disclosed. The device comprises an electronic unit to be connected to a sensing power cell; a parameter associated to the sensing power cell being measurable via the electronic unit. The electronic unit includes a storage element to be charged by the sensing power cell via a charging voltage; a sensing module to measure a generated electrical current during the charging of the storage element, and to generate a voltage as a result; a data interface module connected to the sensing module to receive the generated voltage; and a detection module to monitor the charging voltage, and, when the latter has reached a pre-configured polarization voltage, to indicate to the data interface module to convert the received voltage to a readable result. A Point-of-care device is also disclosed.
Publicado: 23 de junio de 2022
NĂșmero: WO/2022/129270
A novel self-powered point-of-care low-power electronics approach for galvanic cell-based sample concentration measurement is presented. The electronic system harvests and senses at the same time from the single cell. The system implements a solution that is suitable in those scenarios where extreme low power is generated from the fuel cell. The proposed approach implements a capacitive-based method to perform a non-linear sweep voltammetry to the cell, but without the need to implement a potentiostat amplifier for that purpose. It provides a digital-user readable result without the need for external non-self-powered devices or instruments compared with other solutions. The system conception was validated for a particular case. The scenario consisted of the measurement of a NaCl solution as the electrolyte, which was related to the conductivity of the sample. The electronic reader continuously measured the current with a transfer function gain of 1.012 V mAâ»Âč. The overall system exhibited a maximum coefficient of variation of 6.1%, which was an improvement compared with the state-of-the-art. The proof of concept of this electronics system was validated with a maximum power consumption of 5.8 ÎŒW using commercial-off-the-self parts.
Editorial: MDPI
DOI: 10.3390/s21082665
Publicado: 10 de abril de 2021
Volumen: 21
NĂșmero: 8
PĂĄginas: 2665
A self-powered system and a method for power extraction and measurement of energy-generator units are disclosed. The system comprises an energy generator unit providing an electrical current IFC and a voltage VFC; an instrumentation block to measure the electrical current 1FC, and a power management unit connected to the energy generator unit via a first input that collects the electrical current IFC, extracting an electrical power provided by the energy generator unit. The power management unit also has a second input which is connected to a feedback element connected to a voltage reference VREF, to the voltage VFC and to the instrumentation block. A variation of an equivalent input impedance of the power management unit sets a given parameter of the energy generator unit to a controlled given value and the instrumentation block assists in the control of the parameter.
Publicado: 21 de enero de 2021
NĂșmero: WO/2021/009276
The thesis reflects the research carried out on the development of truly self-powered devices. The development of devices for the scopes of Structural Health Monitoring (SHM) and Point-of-Care devices (PoC) is shown. New solutions are implemented in the field of energy harvesting to use a single transducer as sensor element and power supply for the system. In this research, the transducers used are piezoelectric generators and galvanic cells, being extrapolated the developments made to other types of transducers or generators.
Publicado: enero de 2021
In this work, we present an architecture of an envisaged autonomous self-powered potentiostat for biomedical wearable applications. This architecture has been conceived as a versatile and compact analog front-end for electrochemical disposable sensors, specifically as a key component of a wearable non-invasive biomedical device. This architecture is composed by a custom made three electrode potentiostat, a power management circuit for power regulation and to generate the bias voltage needed for proper electrochemical sensor operation, and finally an energy harvesting circuit for power generation. Initial characterization and validation of the potentiostat amplifier demonstrates good resolution, linearity and range, operating at ± 1.5V (450ΌW), being able to operate as an autonomous unit while being highly customizable for different electrochemical sensors.
Editorial: IEEE
ISBN: 978-1-7281-9133-1
Publicado: 18 de noviembre de 2020
Current research about battery-less fuel cell-based point-of-care (POC) devices study energy extraction and the measurement separately. In this article, we purpose a self-powered architecture that extracts energy efficiently from a fuel cell and performs a measurement simultaneously. The prototype uses a discrete power management unit based architecture with a power consumption lower than 36 ÎŒW. We have tested it with ethanol, lactate, and methanol-based fuel cells, being able to perform a fuel concentration measurement while it extracts energy from fuel cells. The solution exhibited a minimum efficiency and maximum start-up time for the ethanol, lactate, and methanol-based fuel cells of 80% and 12 s. The architecture applies to other fuel cells, and the results show how this solution can help us face the current POC's autonomy challenge.
Editorial: IEEE
Publicado: 13 de octubre de 2020
Volumen: 68
NĂșmero: 11
PĂĄginas: 11447 - 11457
Considerable efforts are made to develop Point-of-Care (POC) diagnostic tests. POC devices have the potential to match or surpass conventional systems regarding time, accuracy, and cost, and they are significantly easier to operate by or close to the patient. This strongly depends on the availability of miniaturized measurement equipment able to provide a fast and sensitive response. This paper presents a low-cost, portable, miniaturized USB-powered potentiostat for electrochemical analysis, which has been designed, fabricated, characterized, and tested against three forms of high-cost commercial equipment. The portable platform has a final size of 10.5 x 5.8 x 2.5 cm, a weight of 41 g, and an approximate manufacturing cost of $85 USD. It includes three main components: the power module which generates a stable voltage and a negative supply, the front-end module that comprises a dual-supply potentiostat, and the back-end module, composed of a microcontroller unit and a LabVIEW-based graphic user interface, granting plug-and-play and easy-to-use operation on any computer. The performance of this prototype was evaluated by detecting chronoamperometrically horseradish peroxidase (HRP), the enzymatic label most widely used in electrochemical biosensors. As will be shown, the miniaturized platform detected HRP at concentrations ranging from 0.01 ng·mLâ»Âč to 1 ”g·mLâ»Âč, with results comparable to those obtained with the three commercial electrochemical systems.
Editorial: MDPI
DOI: 10.3390/s19245388
Publicado: 6 de diciembre de 2019
Volumen: 19 (24)
NĂșmero: 5388
In this work, we present a self-powered electronic reader (e-reader) for point-of-care diagnostics based on the use of a fuel cell (FC) which works as a power source and as a sensor. The self-powered e-reader extracts the energy from the FC to supply the electronic components concomitantly, while performing the detection of the fuel concentration. The designed electronics rely on straightforward standards for low power consumption, resulting in a robust and low power device without needing an external power source. Besides, the custom electronic instrumentation platform can process and display fuel concentration without requiring any type of laboratory equipment. In this study, we present the electronics system in detail and describe all modules that make up the system. Furthermore, we validate the device's operation with different emulated FCs and sensors presented in the literature. The e-reader can be adjusted to numerous current ranges up to 3 mA, with a 13 nA resolution and an uncertainty of 1.8%. Besides, it only consumes 900 ”W in the low power mode of operation, and it can operate with a minimum voltage of 330 mV. This concept can be extended to a wide range of fields, from biomedical to environmental applications.
Editorial: MDPI
DOI: 10.3390/s19173715
Publicado: 27 de agosto de 2019
Volumen: 19 (17)
NĂșmero: 3715
This multidisciplinary study combined both bioelectronics and neuroscience, with the aim of developing a tool to probe the underlying neuropathology of the movement disorder Dystonia.
Publicado: 20 de noviembre de 2018
In this work, we present a Self-Powered Event Detection platform to sample biological agents. The proposed low-power system does not use a conventional battery, electronics are powered by a Biological Fuel Cell (BFC). BFCs are electrochemical devices that use biological agents to transform chemical to electrical energy. Furthermore, BFCs can power the sensing electronics while they act as a sensor. We demonstrate the feasibility of this discrete approach with the simulation of the self-powered system fully adaptable to any type of BFC. In this case, we validate the electronic platform with a glucose BFC, detecting three glucose levels (5mM, 7mM and 10mM). The designed system detects sample concentration measuring the current provided by the BFC and gives a qualitative result. The advantages of the presented approach can be extended to any kind of BFC, by measuring different types of analytes. In addition, this innovative concept opens the door to new emerging technologies. Due to the simple architecture of the designed system, it can be implemented on flexible and printable plastic substrates.
Editorial: IEEE
ISBN: 978-1-7281-0172-9
Publicado: 14 de noviembre de 2018
In this paper, we present the design of a battery-less adaptative supercapacitor-based energy storage system for a self- powered multi-harvesting solution. We have designed a module that provides a dynamic capacitive impedance that adapts itself to ensure a proper short-long term operation in terms of energy availability. The module reduces its capacitive impedance during start-up to shorten 94% the time required to reach a minimum operative voltage of 2.6 V compared with the same system without adaptation functionality. Once start-up is accomplished, the module maximizes its capacitive impedance to maximize the energy stored, thus, providing an autonomy time 2,000% longer that the autonomy time of the same system without adaptation functionality. This battery-less module is accomplished with low- power cost-effective off-the-shelf components requiring a maximum current consumption of 9.5 ”A and being a suitable candidate for self-powered/low-power applications.
Editorial: IEEE
ISBN: 978-1-7281-0172-9
Publicado: 14 de noviembre de 2018
This chapter reviews the principal sources of energy present in the environment that are capable of being recovered and converted to electrical energy, with attention to those orientated to the micro- or nanoscale. The ability to recover energy on the micro- or nanoscale requires the development of efficient conduction elements, and great importance of energy modelization in the design of these new self-powered nanodevices and the conception of nanonetworks are envisaged. The chapter also reviews state-of-the-art energy harvesting, focusing on the idea of using different types of energy sources to drive ultra-low-power electronics. As a result, combining highly efficient low-power energy recovery electronics with maximum power point tracking algorithms opens the door to develop new portable devices in very different areas: from human wearable and implantable devices to structural health monitoring and smart sensor motes. Special interest is focused on the field of energy harvesting for self-powered sensors and their expected impact against the greenhouse effect.
Editorial: CRC Press
ISBN: 978-135-12-5009-2
Publicado: 3 de septiembre de 2018
This paper presents an innovative approach in the portable Point-of-Care diagnostics field, the Plug-and-Power concept. In this new disposable sensor and plug-and-play reader paradigm, the energy required to perform a measurement is always available within the disposable test component. The reader unit contains all the required electronic modules to run the test, process data and display the result, but does not include any battery or power source. Instead, the disposable part acts as both the sensor and the power source. Additionally, this approach provides environmental benefits related to battery usage and disposal, as the paper-based power source has non-toxic redox chemistry that makes it eco-friendly and safe to follow the same waste stream as disposable test strips. The feasibility of this Plug-and-Power approach is demonstrated in this work with the development of a self-powered portable glucometer consisting of two parts: a test strip including a paper-based power source and a paper-based biofuel cell as a glucose sensor; and an application-specific battery-less electronic reader designed to extract the energy from the test strip, process the signal provided and show the glucose concentration on a display. The device was tested with human serum samples with glucose concentrations between 5 and 30 mM, providing quantitative results in good agreement with commercial measuring instruments. The advantages of the present approach can be extended to any kind of biosensors measuring different analytes and biological matrices, and in this way, strengthen the goals of Point-of-Care diagnostics towards laboratory decentralization, personalized medicine and improving patient compliance.
Editorial: Elsevier
Publicado: 18 de julio de 2018
Volumen: 118
PĂĄginas: 88-96
Ambient energy harvesting coupled to storage is a way to improve the autonomy of wireless sensors networks. Moreover, in some applications with harsh environment or when a long service lifetime is required, the use of batteries is prohibited. Ultra-capacitors provide in this case a good alternative for energy storage. Such storage must comply with the following requirements: a sufficient voltage during the initial charge must be rapidly reached, a significant amount of energy should be stored and the unemployed residual energy must be minimised at discharge. To answer these apparently contradictory criteria, we propose a selfadaptive switched architecture consisting of a matrix of switched ultra-capacitors. We present the results of a self-powered adaptive prototype that shows the improvement in terms of charge time constant, energy utilization rate and then energy autonomy.
This paper presents an envisaged autonomous strain sensor device, which is dedicated to structural health monitoring applications. The paper introduces the ASIC approach that replaces the discrete approach of some of the main modules.
This paper presents an adaptative self-powered energy harvester strain sensing device based of mechanical vibrations for structural health monitoring applications which, even having multiple fields of application, is framed in the aerospace field. This solution uses a piezoelectric transducer as an energy source, harvesting the energy provided by the in-flight vibration of the aircraft's wing, and as a strain sensor while it assures the accomplishment of maximum power transferred condition between the piezoelectric transducer and the load. The strain measured is outputted by 6-bit parallel output. The experimental results obtained validate the solution as a true self-powered energy harvesting solution able to monitor the strain suffered by the mechanical part where it is attached. Also validate that the maximum power transferred condition is accomplished regardless the characteristics of the oscillations of the mechanical part and the characteristics of the load.
Editorial: IEEE
ISBN: 978-1-5090-0874-2
Publicado: 8 de junio de 2016
A novel piezoelectric harvester-based self-powered adaptive solution with wireless data transmission capability for structural health monitoring is presented. This work demonstrates the accomplishment of maximum power transferred condition for a wide range load conditions and for different amplitudes and frequencies oscillation of the piezoelectric transducer. The characterization of the wireless transmission of temperature and open voltage circuit of the piezoelectric transducer is also presented to support the use of this solution as a wireless self-powered adaptive structural health monitor solution.
Editorial: IEEE
ISBN: 978-1-4673-7228-2
Publicado: 25 de noviembre de 2015
This manuscript presents a Piezoelectric Harvester based on a novel analog control unit to assures a maximum power transmission. Also in this paper it is presented a study of the transferred power between the piezoelectric generator and a load based on data obtained by simulation and experimentally. In addition, results of experimental test of the system for its application as Structural Health Monitoring is presented.
Editorial: IEEE
ISBN: 978-1-4799-7569-3
Publicado: 4 de junio de 2015