Download or read book Micromachined Mixed Potential Type YSZ Based Sensors for Nitrogen Dioxide Monitoring in Automobile Exhaust written by Rui You and published by Springer Nature. This book was released on with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of Harsh Environment Nitrogen Oxides Solid state Gas Sensors written by Nicholas F. Szabo and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The goal of this dissertation was to study and develop high temperature solid-state sensors for combustion based gases. Specific attention was focused on NO x gases (NO and NO2) as they are of significant importance with respect to the environment and the health of living beings. This work is divided into four sections with the first chapter being an introduction into the effects of NO[subscript x] gases and current regulations, followed by an introduction to the field of high temperature NO[subscript x] sensors and finally where and why they will be needed in the future. Chapter 2 focuses on the development of a gas sensor for NO[subscript x] capable of operation in harsh environments. The basis of the sensor is a mixed potential response at 500/600ʻC generated by exposure of gases to a platinum-yttria stabilized zirconia (Pt-YSZ) interface. Asymmetry between the two Pt electrodes on YSZ is generated by covering one of the electrodes with a zeolite, which helps to bring NO/NO2 towards equilibrium prior to the gases reaching the electrochemically active interface. Three sensor designs have been examined, including a planar design that is amenable to packaging for surviving automotive exhaust streams. Automotive tests indicated that the sensor is capable of detecting NO in engine exhausts. It is difficult to measure NO or NO2 selectively especially when both gases are present at the same time thus we have developed a strategy in chapter 3 to measure the total NO[subscript x] level (NO +NO2) in a background of O2 and N2 at high temperatures with minimal CO interference by combining a catalytic filter bed with the existing YSZ sensor device. The filter bed was composed of a Pt catalyst dispersed onto a zeolite Y support placed before a YSZ sensor having an air reference with a Cr2O3 or Pt sensing electrode. Chapter 4 explores the reasons for the difference in sensitivity of metal oxide electrodes, Cr2O3 and a mixed conducting perovskite La06̣ Sr 04̣Fe0̣Co02̣O[subscript x], with the goal of ultimately developing a systematic method of electrode screening as compared to the random screening often found in the literature.
Download or read book Thin Film Mixed Potential Nitrogen Oxide Sensor Development for Stationary Reciprocating Engine Applications written by and published by . This book was released on 2004 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mixed potential sensors using thin film Mg-doped LaCrO3 working electrodes, Pt counter electrodes, and thin film YSZ electrolytes on Al2O3 polycrystalline substrates were prepared and studied at 600 and 650 C in 10.4% O2/N2 balance and in air atmospheres for NO, NO2, CO, and hydrocarbon responses. The lanthanum chromite-based sensors showed preferential sensitivity to NO2 with cross sensitivity to CO and nonmethane hydrocarbons such as C3H6 and C3H. In contrast, sensors with spinel NiCr2O4 working electrodes show minimal sensitivity to NO2. The use of a heated Pt black pre-catalyst upstream to the sensor was demonstrated and the use of this pre-catalyst effectively removed the CO and hydrocarbon response however more work needs to be done to understand the NO/NO2 chemistry post catalyst. Studies conducted for up to 800 hrs at 600 C show minimal aging in these devices.
Download or read book Modeling the Electrochemo poromechanics of Ionic Polymer Metal Composites and Cell Clusters written by Alessandro Leronni and published by Springer. This book was released on 2023-01-05 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a novel continuum finite deformation framework addressing the complex interactions among electrostatics, species transport, and mechanics in solid networks immersed in a fluid phase of solvent and ions. Grounded on cutting-edge multiphysics theories for soft active materials, the proposed model is primarily applied to ionic polymer metal composites (IPMCs). First, the influence of shear deformation on the IPMC response is analyzed through semi-analytical solutions obtained via the method of matched asymptotic expansions. Second, the novel electrochemo-poromechanical theory is used to predict the curvature relaxation and electric discharge that are observed in IPMC actuation and sensing, respectively, under a sustained stimulus. This newly formulated theory is, in turn, applied to biological cell clusters. Here, important mechanical considerations are integrated into classical bioelectrical models, thus offering novel insights into the interplay of mechanical and electrical signaling in the coordination of developmental processes.
Download or read book Solid State Gas Sensors written by P. T. Moseley and published by CRC Press. This book was released on 1987 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overview of the principles & current technology of the main sensor types used for flammable gas detection, oxygen monitoring in combustion & car-exhaust control. Also includes toxic gas monitoring. A companion volume to Techniques & Mechanisms in Gas Sensing.
Download or read book Process and Chemical Engineering written by and published by . This book was released on 2002 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sensors for Automotive Applications written by Jiri Marek and published by John Wiley & Sons. This book was released on 2006-03-06 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt: Taken as a whole, this series covers all major fields of application for commercial sensors, as well as their manufacturing techniques and major types. As such the series does not treat bulk sensors, but rather places strong emphasis on microsensors, microsystems and integrated electronic sensor packages. Each of the individual volumes is tailored to the needs and queries of readers from the relevant branch of industry. An international team of experts from the leading companies in this field gives a detailed picture of existing as well as future applications. They discuss in detail current technologies, design and construction concepts, market considerations and commercial developments. Topics covered include vehicle safety, fuel consumption, air conditioning, emergency control, traffic control systems, and electronic guidance using radar and video.
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2003 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Gas Sensor Materials written by Ghenadii Korotcenkov and published by Springer Science & Business Media. This book was released on 2013-09-18 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: The two volumes of Handbook of Gas Sensor Materials provide a detailed and comprehensive account of materials for gas sensors, including the properties and relative advantages of various materials. Since these sensors can be applied for the automation of myriad industrial processes, as well as for everyday monitoring of such activities as public safety, engine performance, medical therapeutics, and in many other situations, this handbook is of great value. Gas sensor designers will find a treasure trove of material in these two books.
Download or read book Composite Materials written by Kamal K. Kar and published by Springer. This book was released on 2016-10-14 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt: Composite materials are used as substitutions of metals/traditional materials in aerospace, automotive, civil, mechanical and other industries. The present book collects the current knowledge and recent developments in the characterization and application of composite materials. To this purpose the volume describes the outstanding properties of this class of advanced material which recommend it for various industrial applications.
Download or read book Additive Manufacturing written by Amit Bandyopadhyay and published by CRC Press. This book was released on 2015-09-08 with total page 547 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of additive manufacturing has seen explosive growth in recent years due largely in part to renewed interest from the manufacturing sector. Conceptually, additive manufacturing, or industrial 3D printing, is a way to build parts without using any part-specific tooling or dies from the computer-aided design (CAD) file of the part. Today, mo
Download or read book Introduction to Sensors written by John Vetelino and published by CRC Press. This book was released on 2017-12-19 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: The need for new types of sensors is more critical than ever. This is due to the emergence of increasingly complex technologies, health and security concerns of a burgeoning world population, and the emergence of terrorist activities, among other factors. Depending on their application, the design, fabrication, testing, and use of sensors, all require various kinds of both technical and nontechnical expertise. With this in mind, Introduction to Sensors examines the theoretical foundations and practical applications of electrochemical, piezoelectric, fiber optic, thermal, and magnetic sensors and their use in the modern era. Incorporating information from sensor-based industries to review current developments in the field, this book: Presents a complete sensor system that includes the preparation phase, the sensing element and platform, and appropriate electronics resulting in a digital readout Discusses solid-state electronic sensors, such as the metal oxide semiconductor (MOS) capacitor, the micromachined capacitive polymer, and the Schottky diode sensors Uses the two-dimensional hexagonal lattice as an example to detail the basic theory associated with piezoelectricity Explores the fundamental relationship between stress, strain, electric field, and electric displacement The magnetic sensors presented are used to determine measurands such as the magnetic field and semiconductor properties, including carrier concentration and mobility. Offering the human body and the automobile as examples of entities that rely on a multiplicity of sensors, the authors address the application of various types of sensors, as well as the theory and background information associated with their development and the materials used in their design. The coverage in this book reveals the underlying rationale for the application of different sensors while also defining the properties and characteristics of each.
Download or read book Electroceramics written by A. J. Moulson and published by John Wiley & Sons. This book was released on 2003-06-27 with total page 583 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electroceramics, Materials, Properties, Applications, Second Edition provides a comprehensive treatment of the many aspects of ceramics and their electrical applications. The fundamentals of how electroceramics function are carefully introduced with their properties and applications also considered. Starting from elementary principles, the physical, chemical and mathematical background of the subject are discussed and wherever appropriate, a strong emphasis is placed on the relationship between microstructire and properties. The Second Edition has been fully revised and updated, building on the foundation of the earlier book to provide a concise text for all those working in the growing field of electroceramics. * fully revised and updated to include the latest technological changes and developments in the field * includes end of chapter problems and an extensive bibliography * an Invaluable text for all Materials Science students. * a useful reference for physicists, chemists and engineers involved in the area of electroceramics.
Download or read book Advances in Applied Mechanical Engineering written by Hari Kumar Voruganti and published by Springer Nature. This book was released on 2020-02-01 with total page 1161 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents select peer reviewed proceedings of the International Conference on Applied Mechanical Engineering Research (ICAMER 2019). The books examines various areas of mechanical engineering namely design, thermal, materials, manufacturing and industrial engineering covering topics like FEA, optimization, vibrations, condition monitoring, tribology, CFD, IC engines, turbo-machines, automobiles, manufacturing processes, machining, CAM, additive manufacturing, modelling and simulation of manufacturing processing, optimization of manufacturing processing, supply chain management, and operations management. In addition, recent studies on composite materials, materials characterization, fracture and fatigue, advanced materials, energy storage, green building, phase change materials and structural change monitoring are also covered. Given the contents, this book will be useful for students, researchers and professionals working in mechanical engineering and allied fields.
Download or read book Handbook of Reference Electrodes written by György Inzelt and published by Springer Science & Business Media. This book was released on 2013-04-16 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reference Electrodes are a crucial part of any electrochemical system, yet an up-to-date and comprehensive handbook is long overdue. Here, an experienced team of electrochemists provides an in-depth source of information and data for the proper choice and construction of reference electrodes. This includes all kinds of applications such as aqueous and non-aqueous solutions, ionic liquids, glass melts, solid electrolyte systems, and membrane electrodes. Advanced technologies such as miniaturized, conducting-polymer-based, screen-printed or disposable reference electrodes are also covered. Essential know-how is clearly presented and illustrated with almost 200 figures.
Download or read book Sintering Applications written by Burcu Ertug and published by BoD – Books on Demand. This book was released on 2013-02-06 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sintering is one of the final stages of ceramics fabrication and is used to increase the strength of the compacted material. In the Sintering of Ceramics section, the fabrication of electronic ceramics and glass-ceramics were presented. Especially dielectric properties were focused on. In other chapters, sintering behaviour of ceramic tiles and nano-alumina were investigated. Apart from oxides, the sintering of non-oxide ceramics was examined. Sintering the metals in a controlled atmosphere furnace aims to bond the particles together metallurgically. In the Sintering of Metals section, two sections dealt with copper containing structures. The sintering of titanium alloys is another topic focused in this section. The chapter on lead and zinc covers the sintering in the field of extractive metallurgy. Finally two more chapter focus on the basics of sintering,i.e viscous flow and spark plasma sintering.
Download or read book Recent Trends in Fuel Cell Science and Technology written by S. Basu and published by Springer Science & Business Media. This book was released on 2007-10-20 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers all the proposed fuel cell systems including PEMFC, SOFC, PAFC, MCFC, regenerative fuel cells, direct alcohol fuel cells, and small fuel cells to replace batteries.
