Download or read book Flexible Sensors and Smart Patches for Multimodal Sensing written by Akanksha Rohit and published by . This book was released on 2021 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emerging wearable technologies are creating a major impact in the area of health monitoring, aerospace, prosthetics and robotics to monitor crucial information in real time which could not be achieved using conventional electronics only. The demand for multifunctional wearable systems is set to grow exponentially in the next decade and low cost multimodal sensor patches that can be closely coupled to the skin define the success of this new era of digital health and robotics. Accordingly, this dissertation focuses on developing a wireless multi-modal sensor patch that can be directly placed on the skin or integrated into clothing to monitor multiple biophysical and structural signals simultaneously. Serving both as a multimodal sensor as well as a compact integration platform for smart textile development, the proposed patch is ideally suited for complex body performance monitoring, realistic worker training and for high-risk patients. The foundation of this research is based on parallel plate capacitive sensors with elastomeric dielectrics (Ecoflex/PDMS) and conductive textile electrodes. The patches are highly stretchable (100%) with a gauge factor of 0.64 with pure silicone (Ecoflex) as the dielectric layer. The gauge factor of the capacitive strain sensor is enhanced two-fold with the inclusion of high-k (or relative dielectric constant) barium titanate (BTO) nanoparticles dispersed in the silicone dielectric layer without sacrificing its linearity and durability easily exceeding 2000 cycles. To further improve the capacitive performance and capabilities for multi-modal sensing, the elastomer dielectric layer is modified with highly flexible polyurethane (PU) foam. With a foam-based dielectric, the change in capacitance is not only due to the change in the thickness of the dielectric but also due to the change in the permittivity of the micropores due its porous structure. In addition to bending and stretching, the foam-based dielectric had a high-pressure sensitivity (0.0198 kPa-1) in the range of 0-4.5 kPa making it capable to monitor phonation, pulsatile flow and respiration. The piezoelectric properties of films, including the nanoparticles of barium titanate (BTO), lead zirconate titanate (PZT) and polyvinylidene fluoride-trifluoroethylene (PVDF-TrFE) was systematically studied at different weight ratios by bending and motor vibrational tests. On corona poling the nanocomposite films at high field (6 kV/cm), the voltage output of all the piezoelectric sensors increased by two-fold. Therefore, with a few modifications in the dielectric layer, the patches are sufficiently sensitive to detect multiple stimuli such as strain, pressure, temperature, bending, vibration, and acoustic feedback. Due to limitations with high poling voltages that can cause arcing, triboelectric sensing was also explored in this work. While charge generation in piezoelectric materials is due to deformation and shift of ions in the crystal structure, triboelectricity is the charge generated due to friction between the two materials. Amongst all the material studied, polyurethane foam was used as the positive frictional layer and PDMS mixed with expandable microspheres was used as the negative frictional layer. The high sensitivity of the triboelectric sensors were capable of sensing small movements such as blinking and chewing, breathing rate and pulsatile flow which could not be detected with the piezoelectric sensors. Three different designs of multimodal patches were developed by combining the different dielectrics into a single patch

Download or read book Smart Sensor Systems written by Gerard Meijer and published by John Wiley & Sons. This book was released on 2014-04-02 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt: With contributions from an internationally-renowned group of experts, this book uses a multidisciplinary approach to review recent developments in the field of smart sensor systems, covering important system and design aspects. It examines topics over the whole range of sensor technology from the theory and constraints of basic elements, physics and electronics, up to the level of application-orientated issues. Developed as a complementary volume to ‘Smart Sensor Systems’ (Wiley 2008), which introduces the basics of smart sensor systems, this volume focuses on emerging sensing technologies and applications, including: State-of-the-art techniques for designing smart sensors and smart sensor systems, including measurement techniques at system level, such as dynamic error correction, calibration, self-calibration and trimming. Circuit design for sensor systems, such as the design of precision instrumentation amplifiers. Impedance sensors, and the associated measurement techniques and electronics, that measure electrical characteristics to derive physical and biomedical parameters, such as blood viscosity or growth of micro-organisms. Complete sensor systems-on-a-chip, such as CMOS optical imagers and microarrays for DNA detection, and the associated circuit and micro-fabrication techniques. Vibratory gyroscopes and the associated electronics, employing mechanical and electrical signal amplification to enable low-power angular-rate sensing. Implantable smart sensors for neural interfacing in bio-medical applications. Smart combinations of energy harvesters and energy-storage devices for autonomous wireless sensors. Smart Sensor Systems: Emerging Technologies and Applications will greatly benefit final-year undergraduate and postgraduate students in the areas of electrical, mechanical and chemical engineering, and physics. Professional engineers and researchers in the microelectronics industry, including microsystem developers, will also find this a thorough and useful volume.

Download or read book Flexible and Wearable Sensors written by Ram K. Gupta and published by CRC Press. This book was released on 2023-03-21 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: With rapid technological developments and lifestyle advancements, electronic sensors are being seamlessly integrated into many devices. This comprehensive handbook explores current, state-of-the-art developments in flexible and wearable sensor technology and its future challenges. Numerous recent efforts have improved the sensing capability and functionality of flexible and wearable sensors. However, there are still many challenges in making them super-smart by incorporating features such as self-power, self-healing, and multifunctionality. These features can be developed with the use of multifunctional nanostructured materials, unique architectural designs, and other advanced technologies. This book provides details about the recent advancements, materials, and technologies used for flexible and wearable sensors. Its wide range of topics addresses the fundamentals of flexible and wearable sensors, their working principles, and their advanced applications. This handbook provides new directions to scientists, researchers, and students to better understand the principles, technologies, and applications of sensors in healthcare, energy, and the environment.

Download or read book Multimodal electronic textiles for intelligent human machine interfaces written by Xiao Wei and published by OAE Publishing Inc.. This book was released on 2023-05-18 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Smart wearable electronic devices capable of information exchanging (such as human-machine interfaces) have developed into key carriers for the interconnection, intercommunication, and interaction between humans and machines. Multimodal electronic textiles that incorporate multifunctional sensors into daily clothing are an emerging technology to realize smart wearable electronics. This has greatly advanced human-machine interface technology by bridging the gap between wearing comfort and traditional wearable electronic devices, which will facilitate the rapid development and wide application of natural human-machine interfaces. In this article, we provide a comprehensive summary of the latest research progress on multimodal electronic textiles for intelligent human-machine interfaces. Firstly, we introduce the most representative electronic textile manufacturing strategies in terms of functional fiber preparation and multimodal textile forming. Then, we explore the multifunctional sensing capability of multimodal electronic textiles and emphasize their advanced applications in intelligent human-machine interfaces. Finally, we present new insights on the future research directions and the challenges faced in practical applications of multimodal electronic textiles.

Download or read book Printed Flexible Sensors written by Anindya Nag and published by Springer. This book was released on 2019-03-11 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents recent advances in the design, fabrication and implementation of flexible printed sensors. It explores a range of materials for developing the electrode and substrate parts of the sensors, on the basis of their electrical and mechanical characteristics. The sensors were processed using laser cutting and 3D printing techniques, and the sensors developed were employed in a number of healthcare, environmental and industrial applications, including: monitoring of physiological movements, respiration, salinity and nitrate measurement, and tactile sensing. The type of sensor selected for each application depended on its dimensions, robustness and sensitivity. The sensors fabricated were also embedded in an IoT-based system, allowing them to be integrated into real-time applications.

Download or read book Multimodal multisensor Analytics for Detecting Anxiety Phases in Individuals Experiencing High Anxiety written by Hashini Senaratne and published by Hashini Senaratne. This book was released on 2023-05-08 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: This PhD thesis aims to advance objective assessments of anxiety to address the drawbacks of current clinical assessments. It uses multiple methods, including semi-structured interviews, lab-based data collection, signal analysis techniques, and multimodal-multisensor analytics. In total, 147 subjects participated in qualitative and quantitative data collection studies. Its results detected high-anxious vs. low-anxious individuals, conceptualized four anxiety phases, and detected all those phases in 65% of high-anxious individuals by fusing three physiological and behavioral features; a 30% improvement compared to the best unimodal feature. Overall, this thesis is a fundamental contribution toward the long-term aims of minimizing the burden of anxiety disorders. Full content at: https://doi.org/10.26180/19728097.v1

Download or read book Flexible pressure and temperature sensors towards e skin material mechanism structure and fabrication written by Shengrui Tian and published by OAE Publishing Inc.. This book was released on 2023-08-07 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electronic skin (E-skin) has gained significant attention due to its potential applications in the Internet of Things (IoT), artificial intelligence (AI), and flexible multi-sensing systems. Mimicking human skin, e-skin sensing devices can be employed in various scenarios. Among the most important sensing elements for tactile e-skin sensors are pressure and temperature sensors, which have increasingly garnered research interest over the past few decades. However, the design and fabrication of advanced pressure and temperature sensors can be challenging owing to complications such as signal interference, complex mechanism integration, and structural design issues. This review provides an overview of flexible pressure and temperature sensors used in e-skin, covering four main perspectives: material selection, mechanism integration, structural design, and manufacturing methods. The materials of different elements in the entire sensing system are comprehensively discussed, along with single and compound mechanisms of pressure and temperature sensing. Pressure and temperature sensors are divided into two types based on their electric output signals, which are exemplified in detail. The manufacturing methods used to fabricate these sensors, including printing methods, are outlined. Lastly, a summary of the future challenges faced by flexible pressure and temperature sensors used in e-skin is presented.

Download or read book THE DESIGN OF A MULTI SENSING FLEXIBLE SYSTEM USED FOR REAL TIME MONITORING written by Junghsien Wei and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently, massive data generated by wearable and flexible electronics set demand for efficient communication between sensors and terminals. High speed, low power consumption, and small hardware size are the key factors in data communication. As an example, we have demonstrated an integrated sensing system, including the power supply unit, sensors for collecting data, data processing (the filter and magnifier) and a communication module. The communication module is based on the low-power Bluetooth technology. Fast and reliable data collection is achieved, which is confirmed by the comparison with a wired processing module. We aim to expand our design to multi-sensing (such as strain, temperature, and pH) and physiological monitoring based on flexible and wearable electronics.

Download or read book Integrated Smart Micro Systems Towards Personalized Healthcare written by Yu Song and published by John Wiley & Sons. This book was released on 2021-12-09 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Integrated Smart Micro-Systems Towards Personalized Healthcare Presents a thorough summary of recent advances in microelectronic systems and their applications for personalized healthcare Integrated Smart Micro-Systems Towards Personalized Healthcare provides up-to-date coverage of developments in smart microelectronics and their applications in health-related areas such as sports safety, remote diagnosis, and closed-loop health management. Using a comprehensive approach to the rapidly growing field, this one-stop resource examines different methods, designs, materials, and applications of systems such as multi-modal sensing biomedical platforms and non-invasive health monitoring sensors. The book’s five parts detail the core units of micro-systems, self-charging power units, self-driven monitor patches, self-powered sensing platforms, and integrated health monitoring systems. Succinct chapters address topics including multi-functional material optimization, multi-dimensional electrode preparation, multi-scene application display, and the use of multi-modal signal sensing to monitor physical and chemical indicators during exercise. Throughout the text, the authors offer key insights on device performance improvement, reliable fabrication processing, and compatible integration designs. Provides an overview self-powered, wearable micro-systems with emphasis on personalized healthcare Covers the working mechanisms and structural design of different energy-harvesting units, energy storage units, and functional units Introduces an integrated self-charging power unit consisting of triboelectric nanogenerators with supercapacitor Describes a general solution-evaporation method for developing porous CNT-PDMS conductive elastomers Examines a fully-integrated self-powered sweat sensing platform built on a wearable freestanding-mode triboelectric nanogenerator Integrated Smart Micro-Systems Towards Personalized Healthcare is an essential text for researchers, electronic engineers, entrepreneurs, and industry professionals working in material science, electronics, mechanical engineering, bioengineering, and sensor development.

Download or read book Multimodal Intelligent Sensing in Modern Applications written by Masood Ur Rehman and published by Wiley-IEEE Press. This book was released on 2025-04-29 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discover the design, implementation, and analytical techniques for multi-modal intelligent sensing in this cutting-edge text The Internet of Things (IoT) is becoming ever more comprehensively integrated into everyday life. The intelligent systems that power smart technologies rely on increasingly sophisticated sensors in order to monitor inputs and respond dynamically. Multi-modal sensing offers enormous benefits for these technologies, but also comes with greater challenges; it has never been more essential to offer energy-efficient, reliable, interference-free sensing systems for use with the modern Internet of Things. Multimodal Intelligent Sensing in Modern Applications provides an introduction to systems which incorporate multiple sensors to produce situational awareness and process inputs. It is divided into three parts—physical design aspects, data acquisition and analysis techniques, and security and energy challenges—which together cover all the major topics in multi-modal sensing. The result is an indispensable volume for engineers and other professionals looking to design the smart devices of the future. Multimodal Intelligent Sensing in Modern Applications readers will also find: A field of multidisciplinary contributors in fields like wireless communications, signal processing, and sensor design Coverage of both software and hardware solutions to sensing challenges Detailed treatment of advanced topics like efficient deployment, data fusion, machine learning, and more Multimodal Intelligent Sensing in Modern Applications is ideal for experienced engineers and designers who need to apply their skills to Internet of Things and 5G/6G networks. It can also act an introductory text for graduate researchers into understanding the background, design, and implementation of various sensor types and data analytics tools.

Download or read book Flexible Sensors for Energy Harvesting Applications written by Anindya Nag and published by Springer Nature. This book was released on 2022-04-21 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book investigates the fabrication of different types of flexible sensors and their subsequent implementation for energy-harvesting applications. A range of techniques, including 3D printing, soft lithography, laser ablation, micro-contract printing, screen-printing, inkjet printing and others have been used to form the flexible sensors with varied characteristics. These sensors have been used for biomedical, environmental and healthcare applications on the basis of their performances. The quality of these flexible sensors has depended on certain types of nanomaterials that have been used to synthesize the conductive parts of the prototypes. These nanomaterials have been based on different sizes and shapes, whose quality varied on the basis of certain factors like crystallinity, shapes and sizes. One of the primary utilization of these nanotechnology-based flexible sensors has been the harvesting of energy where nano-generators and nano-harvesters have been formed to generate and store energy, respectively, on small and moderate magnitudes. Mechanical and thermal energies have been harvested on the basis of the piezoelectric, pyroelectric and triboelectric effects created by the formed prototypes. The work highlights the amalgamation of these sectors to spotlight the essence of these types of sensors and their intended application.

Download or read book Smart Sensors and Systems written by Chong-Min Kyung and published by Springer. This book was released on 2016-10-16 with total page 517 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the technology used for effective sensing of our physical world and intelligent processing techniques for sensed information, which are essential to the success of Internet of Things (IoT). The authors provide a multidisciplinary view of sensor technology from materials, process, circuits, and big data domains and showcase smart sensor systems in real applications including smart home, transportation, medical, environmental, agricultural, etc. Unlike earlier books on sensors, this book provides a “global” view on smart sensors covering abstraction levels from device, circuit, systems, and algorithms.

Download or read book Stretchable flexible sensors for smart tires based on laser induced graphene technology written by Yang Yue and published by OAE Publishing Inc.. This book was released on 2023-04-27 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Continuous feedback on a tire is an essential means to ensure tire safety. Smart tires are an important part of the future vehicle control system, which affects the safety and comfort of vehicles by combining sensors with traditional tires to achieve continuous monitoring of real-time dynamic parameters. A stretchable and flexible sensor made of laser-induced graphene (LIG) and PDMS, designed for use in smart tires, is presented in this work. The sensor is known as a LIG-PDMS sensor. Using transfer printing, LIG is formed on a commercial polyimide film under the scribing of a laser beam following the predesigned route before being transferred to a PDMS film. This technology is used to successfully prepare flexible sensors for measuring the tire road interaction at different driving speeds due to its flexibility and shape-following characteristics. The real-time monitoring of the wheel speed and the shape of the tire grounding mark during the driving process is realized by embedding multiple LIG sensors in the tire to monitor the strain information of the tire grounding. Results show that the tire deformation can be accurately feedbacked with the LIG sensors, demonstrating our method's capability for designing and manufacturing intelligent tires.

Download or read book Product Guide to Skin Wound Care written by Cathy Hess and published by Lippincott Williams & Wilkins. This book was released on 2019-11-04 with total page 609 pages. Available in PDF, EPUB and Kindle. Book excerpt: Choose the best possible skin and wound care products to support your patients’ skin health and wound healing, with the invaluable Product Guide to Skin and Wound Care, 8th Edition. Listing 294 products in alphabetical order, this handy product guide for wound care practitioners across all practice settings offers detailed information—sizes, action, indications, contraindications, application, and removal information—so that your choices stay informed and accurate.

Download or read book Wearable Bioelectronics written by Anthony P.F. Turner and published by Elsevier. This book was released on 2019-11-26 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wearable Bioelectronics presents the latest on physical and (bio)chemical sensing for wearable electronics. It covers the miniaturization of bioelectrodes and high-throughput biosensing platforms while also presenting a systemic approach for the development of electrochemical biosensors and bioelectronics for biomedical applications. The book addresses the fundamentals, materials, processes and devices for wearable bioelectronics, showcasing key applications, including device fabrication, manufacturing, and healthcare applications. Topics covered include self-powering wearable bioelectronics, electrochemical transducers, textile-based biosensors, epidermal electronics and other exciting applications. - Includes comprehensive and systematic coverage of the most exciting and promising bioelectronics, processes for their fabrication, and their applications in healthcare - Reviews innovative applications, such as self-powering wearable bioelectronics, electrochemical transducers, textile-based biosensors and electronic skin - Examines and discusses the future of wearable bioelectronics - Addresses the wearable electronics market as a development of the healthcare industry

Download or read book Smart Actuation and Sensing Systems written by Giovanni Berselli and published by BoD – Books on Demand. This book was released on 2012-10-17 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the present book, which tries to summarize in an edited format and in a fairly comprehensive manner, many of the recent technical research accomplishments in the area of Smart Actuators and Smart Sensors, is to combine researchers and scientists from different fields into a single virtual room. The book hence reflects the multicultural nature of the field and will allow the reader to taste and appreciate different points of view, different engineering methods and different tools that must be jointly considered when designing and realizing smart actuation and sensing systems.

Download or read book Photoplethysmography written by Panicos A. Kyriacou and published by Academic Press. This book was released on 2021-11-03 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: Photoplethysmography: Technology, Signal Analysis, and Applications is the first comprehensive volume on the theory, principles, and technology (sensors and electronics) of photoplethysmography (PPG). It provides a detailed description of the current state-of-the-art technologies/optical components enabling the extreme miniaturization of such sensors, as well as comprehensive coverage of PPG signal analysis techniques including machine learning and artificial intelligence. The book also outlines the huge range of PPG applications in healthcare, with a strong focus on the contribution of PPG in wearable sensors and PPG for cardiovascular assessment. - Presents the underlying principles and technology surrounding PPG - Includes applications for healthcare and wellbeing - Focuses on PPG in wearable sensors and devices - Presents advanced signal analysis techniques - Includes cutting-edge research, applications and future directions