Author: Yong Qing MaPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Investigation Into the Materials and Manufacturing of a New Thin Film Magnetoresistive Sensor
Author: Yong Qing MaMagnetic Sensors
Author: Aktham AsfourPublisher: BoD – Books on Demand
ISBN: 953513647X
Category : Technology & Engineering
Languages : en
Pages : 166
Book Description
This book presents an overview of some trends of research and development in the area of magnetic sensors, from materials to applications. A first focus is made on the topics of amorphous micro-wires and thin-film structures and their fabrication, characterization, and application for magnetic sensors based on the effects of giant magneto-impedance (GMI) and magneto-elasticity. A second section deals with the magneto-impedance (MR) sensors, from the development of new materials to sensor implementation and applications. Intended for readers wishing to acquire understanding of the current trends in these areas and comprehension of the issues and the potential of applications of these sensors, this book addresses exciting topics in this field.
Thin Film Magnetoresistive Sensors
Author: S TumanskiPublisher: CRC Press
ISBN: 9780750307024
Category : Science
Languages : en
Pages : 576
Book Description
Thin Film Magnetoresistive Sensors presents a comprehensive review of thin film magnetoresistive (MR) sensors, including the theory of MR effects as well as the design, fabrication, properties, and applications of MR sensors. With over 1,000 references, the book fully reviews the theory, development, and use of these sensors. It provides essential information about the performance of various kinds of sensors, including permalloy magnetoresistors, spin valve sensors, multilayer sensors, colossal effect sensors, spin dependent tunneling sensors, and magnetoimpedance sensors. Divided into three independent parts, the book first concentrates on the most widely used sensors-anisotropic magnetoresistive sensors (AMR). The second part deals with giant magnetoresistive (GMR) sensors, including those still in development. In the third section, the book describes the applications of MR sensors, especially in data storage systems, industrial measurements, and nondestructive material testing systems.
Thick Film Sensors
Author: Maria PrudenziatiPublisher:
ISBN:
Category : Science
Languages : en
Pages : 498
Book Description
Inaugurating a new Elsevier series, this volume presents the state of the art in thick-film technology. It disseminates the data identifying the actual performances and applications of thick-film sensors manufactured all over the world, and presents ideas underlying current activities in the research and development of new devices. Three major areas are explored in which thick-film technology contributes as a sensor technology, namely hybrid circuits for signal processing, creation of architectural structures, and transducing elements derived from thick-film pastes. Annotation copyright by Book News, Inc., Portland, OR
Microelectromechanical Systems
Author: Committee on Advanced Materials and Fabrication Methods for Microelectromechanical SystemsPublisher: National Academies Press
ISBN: 0309591511
Category : Technology & Engineering
Languages : en
Pages : 76
Book Description
Microelectromenchanical systems (MEMS) is a revolutionary field that adapts for new uses a technology already optimized to accomplish a specific set of objectives. The silicon-based integrated circuits process is so highly refined it can produce millions of electrical elements on a single chip and define their critical dimensions to tolerances of 100-billionths of a meter. The MEMS revolution harnesses the integrated circuitry know-how to build working microsystems from micromechanical and microelectronic elements. MEMS is a multidisciplinary field involving challenges and opportunites for electrical, mechanical, chemical, and biomedical engineering as well as physics, biology, and chemistry. As MEMS begin to permeate more and more industrial procedures, society as a whole will be strongly affected because MEMS provide a new design technology that could rival--perhaps surpass--the societal impact of integrated circuits.
Fabrication and Characterization of Thin Film Pressure Sensors Using Novel Materials
Author: Victor SamoeiPublisher:
ISBN:
Category : Microelectromechanical systems
Languages : en
Pages : 83
Book Description
Thin-film pressure sensors have received widespread attention in recent times due to its ease of manufacture, characterization, and fatigue strength. Commercial fabrication of these sensors is inexpensive and compatible with the current manufacturing technologies. It has been found that the sensitivity of the flexible pressure sensor depends on the sensing pressure, the microstructural dispersion of nanoparticles, and the compatibility of the binder and the nanoparticles. The binder/particle dispersion should be such that it facilitates the formation of a greater number of conduction paths with a slight change in sensing pressure. The objective of this thesis includes the fabrication and characterization of a thin-film pressure sensor using different novel materials. The first material to be investigated was ZnO. ZnO thin-film materials that have received a great deal of attention due to its unique properties of being a semiconductor with wide bandgap and piezoelectric effect. The sensor characteristic of ZnO was compared with barium-titanate (BaTiO3) Gallium arsenic (GaAs) and Polyvinylidene fluoride (PVDF). The second material to be investigated was aluminum-doped zinc oxide (AZO). AZO has attracted a great deal of attention in many applications because of its nontoxicity, abundancy, and lower cost than other materials such as indium tin oxide (ITO). The AZO films were deposited on polyethylene (PE) substrates by a radiofrequency (rf) magnetron sputtering method. The piezoresistive sensor was tested for different pressures in vacuum and gage pressure conditions. The response characteristics indicated that resistance increased with the bending of the AZO layer in both compressive and tensile operation modes. The sensor characteristics exhibited that the AZO piezoresistive sensor can be used to measure ambient pressure quantitatively. This investigation indicated that AZO can be used as an alternative material for the fabrication of pressure sensors. Lastly, the materials that were investigated are carbon black/ Poly (vinylidene fluoride) (CB/PVDF), graphene/PMMA, and graphene/PVDF composites. The conductive CB/PVDF material was prepared by the wet-cast method and deposited into a flexible polyethylene (PE) substrate, while the graphene composites were prepared by the solvent cast method. The surface morphology, crystal structure, and material properties were studied using SEM and X-ray diffraction methods. Sensitivity, response time, and recovery time were analyzed by testing the sample in the deferent pressure range and vibration modes. The repeatability and reproducibility characteristics of the sensor were studied and found that the sensor exhibits excellent characteristics. The sensors were subjected to different loading/unloading pressures. The resistance of the sensor remained stable indicating that the sensor had a high degree of reproducibility.
Journal of Research of the National Institute of Standards and Technology
Author: Publisher:
ISBN:
Category : Chemistry
Languages : en
Pages : 716
Book Description
Reports NIST research and development in the physical and engineering sciences in which the Institute is active. These include physics, chemistry, engineering, mathematics, and computer sciences. Emphasis on measurement methodology and the basic technology underlying standardization.
Proceedings of the Fifth International Symposium on Magnetic Materials, Processes, and Devices
Author: Lubomyr Taras RomankiwPublisher: The Electrochemical Society
ISBN: 9781566772143
Category : Computers
Languages : en
Pages : 730
Book Description
Author: 
Author: