Sensors Vi

The reference provides interdisciplinary discussion for diverse II-VI semiconductors with a wide range of topics. The third volume of a three volume set, the book provides an up-to-date account of the present status of multifunctional II-VI semiconductors, from fundamental science and processing to their applications as various sensors, biosensors, and radiation detectors, and based on them to formulate new goals for the further research. The chapters in this volume provide a comprehensive overview of the manufacture, parameters and principles of operation of these devices. The application of these devices in various fields such medicine, agriculture, food quality control, environment monitoring and others is also considered. The analysis carried out shows the great potential of II-VI semiconductor-based sensors and detectors for these applications. Considers solid-state radiation detectors based on semiconductors of II-VI group and their applications; Analyzes the advantages of II-VI compounds to develop chemical and optical gas and ion sensors; Describes all types of biosensors based on II-VI semiconductors and gives examples of their use in various fields.

A NATO Advanced Research Workshop (ARW) entitled “Advanced Materials and Technologies for Micro/Nano Devices, Sensors and Actuators” was held in St. Petersburg, Russia, from June 29 to July 2, 2009. The main goal of the Workshop was to examine (at a fundamental level) the very complex scientific issues that pertain to the use of micro- and nano-electromechanical systems (MEMS and NEMS), devices and technologies in next generation commercial and defen- related applications. Micro- and nano-electromechanical systems represent rather broad and diverse technological areas, such as optical systems (micromirrors, waveguides, optical sensors, integrated subsystems), life sciences and lab equipment (micropumps, membranes, lab-on-chip, membranes, microfluidics), sensors (bio-sensors, chemical sensors, gas-phase sensors, sensors integrated with electronics) and RF applications for signal transmission (variable capacitors, tunable filters and antennas, switches, resonators). From a scientific viewpoint, this is a very multi-disciplinary field, including micro- and nano-mechanics (such as stresses in structural materials), electronic effects (e. g. charge transfer), general electrostatics, materials science, surface chemistry, interface science, (nano)tribology, and optics. It is obvious that in order to overcome the problems surrounding next-generation MEMS/NEMS devices and applications it is necessary to tackle them from different angles: theoreticians need to speak with mechanical engineers, and device engineers and modelers to listen to surface physicists. It was therefore one of the main objectives of the workshop to bring together a multidisciplinary team of distinguished researchers.

Nanotechnology-based Sensors for Efficient Detection of Environmental Pollution discusses the use of nanotechnology to generate sensors capable of performing efficient detection of different types of environmental pollutants. Nanomaterial’s characteristics such as large surface area, good reactivity, and possibility to suffer chemical surface modification to recognize different types of molecules are useful, especially to perform the detection of specific environmental pollutants. Innovative and efficient ways to detect environmental pollution are urgently needed for sustainability and the nanotechnology field has an enormous potential to offer strategic solutions. Nanotechnology-based sensors offer an efficient way of detecting the presence of contaminants and determine its structure and chemical nature is by applying nanotechnology and/or nanobiotechnology. This book will contain 5 parts: the first one will be dedicated to exploring environmental pollution as a threat to life on Earth and main contaminants (inorganic, organic or pathogens) and the risk they represent to living beings. The second part will be dedicated to nanotechnology allowing pollutants’ detection covering a brief history of nanotechnology-based sensors, different types of nanotechnology-based sensor (optical, electrochemical, and magnetic), nanotechnology-based sensors’ design and fabrication and nano biosensors. The third part will be focused on important specific pollutants (pesticides, heavy metal, dyes, toxic gas, pharmaceutical waste, petroleum hydrocarbons, and pathogenic microbes) and their detection by nanotechnology-based sensors. The fourth part will be dedicated to important nanomaterials in nanotechnology-based sensors, exploring carbon-based and non-carbon-based material in nanoscale (graphene, carbon nanotubes, quantum dots, magnetic nanomaterials, non-magnetic nanoparticles) and also point-of-care sensors and functionalization to generate optimized nanotechnology-based sensors to pollutants’ detection. The fifth and last part of Nanotechnology-based Sensors for Efficient Detection of Environmental Pollution will address relevant practical aspects related to nanotechnology-based sensors, covering advantages and challenges, safety, economic and commercial aspects related to the field and also sustainability, highlighting green nanomaterials on nanotechnology-based sensors. Provides a comprehensive, multidisciplinary review of nanotechnology-based sensors Supplies readers extensive knowledge on detecting harmful pollutants in different environments using nanotechnology-based sensors Presents chapters dedicated to the detection of pollutants different from toxic gas and pharmaceutical products, such as pesticides, heavy metals, dyes, pathogens, and petroleum hydrocarbons Introduces information on pollutants and the threats they represent to living beings, nanotechnology-based sensor’s design and fabrication, a brief history of the field, and practical issues related to the field, such as economics, safety, and challenges

Sensors, Transducers, Signal Conditioning and Wireless (Book Series 'Advances in Sensors: Reviews', Vol. 3) is a premier sensor review source and contains 19 chapters with sensor related state-of-the-art reviews and descriptions of latest achievements written by 55 authors from academia and industry from 19 countries: Botswana, Canada, China, Finland, France, Germany, India, Jordan, Mexico, Portugal, Romania, Russia, Senegal, Serbia, South Africa, South Korea, UK, Ukraine and USA. Coverage includes current developments in physical sensors and transducers, chemical sensors, biosensors, sensing materials, signal conditioning energy harvesters and wireless sensor networks. This book ensures that readers will stay at the cutting edge of the field and get the right and effective start point and road map for the further researches and developments.

This Springer Brief presents recent research results on area coverage for intruder detection from an energy-efficient perspective. These results cover a variety of topics, including environmental surveillance and security monitoring. The authors also provide the background and range of applications for area coverage and elaborate on system models such as the formal definition of area coverage and sensing models. Several chapters focus on energy-efficient intruder detection and intruder trapping under the well-known binary sensing model, along with intruder trapping under the probabilistic sensing model. The brief illustrates efficient algorithms rotate the duty of each sensor to prolong the network lifetime and ensure intruder trapping performance. The brief concludes with future directions of the field. Designed for researchers and professionals working with wireless sensor networks, the brief also provides a wide range of applications which are also valuable for advanced-level students interested in efficiency and networking.

Without sensors most electronic applications would not exist—sensors perform a vital function, namely providing an interface to the real world. Hall effect sensors, based on a magnetic phenomena, are one of the most commonly used sensing technologies today. In the 1970s it became possible to build Hall effect sensors on integrated circuits with onboard signal processing circuitry, vastly reducing the cost and enabling widespread practical use. One of the first major applications was in computer keyboards, replacing mechanical contacts. Hundreds of millions of these devices are now manufactured each year for use in a great variety of applications, including automobiles, computers, industrial control systems, cell phones, and many others. The importance of these sensors, however, contrasts with the limited information available. Many recent advances in miniaturization, smart sensor configurations, and networkable sensor technology have led to design changes and a need for reliable information. Most of the technical information on Hall effect sensors is supplied by sensor manufacturers and is slanted toward a particular product line. System design and control engineers need an independent, readable source of practical design information and technical details that is not product- or manufacturer-specific and that shows how Hall effect sensors work, how to interface to them, and how to apply them in a variety of uses. This book covers:• the physics behind Hall effect sensors• Hall effect transducers• transducer interfacing• integrated Hall effect sensors and how to interface to them• sensing techniques using Hall effect sensors• application-specific sensor ICs• relevant development and design toolsThis second edition is expanded and updated to reflect the latest advances in Hall effect devices and applications! Information about various sensor technologies is scarce, scattered and hard to locate. Most of it is either too theoretical for working engineers, or is manufacturer literature that can’t be entirely trusted. Engineers and engineering managers need a comprehensive, up-to-date, and accurate reference to use when scoping out their designs incorporating Hall effect sensors. * A comprehensive, up-to-date reference to use when crafting all kinds of designs with Hall effect sensors*Replaces other information about sensors that is too theoretical, too biased toward one particular manufacturer, or too difficult to locate*Highly respected and influential author in the burgeoning sensors community

This book emphasizes the increasingly important role that Computational Intelligence (CI) methods are playing in solving a myriad of entangled Wireless Sensor Networks (WSN) related problems. The book serves as a guide for surveying several state-of-the-art WSN scenarios in which CI approaches have been employed. The reader finds in this book how CI has contributed to solve a wide range of challenging problems, ranging from balancing the cost and accuracy of heterogeneous sensor deployments to recovering from real-time sensor failures to detecting attacks launched by malicious sensor nodes and enacting CI-based security schemes. Network managers, industry experts, academicians and practitioners alike (mostly in computer engineering, computer science or applied mathematics) benefit from th e spectrum of successful applications reported in this book. Senior undergraduate or graduate students may discover in this book some problems well suited for their own research endeavors.