A Design Methodology for Low-cost, High-performance Capacitive Sensors PDF Download
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Author: Ferencz Nandor Toth
Publisher:
ISBN: 9789040714078
Category : Technology & Engineering
Languages : en
Pages : 146
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Book Description
Author: Ferencz Nandor Toth
Publisher:
ISBN: 9789040714078
Category : Technology & Engineering
Languages : en
Pages : 146
Get Book Here
Book Description
Author: Gerard Meijer
Publisher: John Wiley & Sons
ISBN: 9780470866924
Category : Technology & Engineering
Languages : en
Pages : 404
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Book Description
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, providing complete coverage of all important system and design aspects, their building blocks and methods of signal processing. It examines topics over the whole range of sensor technology from the theory and constraints of basic elements, the applied techniques and electronic, up to the level of application-orientated issues. Developed as a complementary volume to ‘Smart Sensor Systems’ (Wiley 2008), which introduces the theoretical foundations, this volume focuses on practical applications, including: State-of-the-art techniques for designing smart sensors and smart sensor systems, with measurement techniques at system level, such as collaboration and trimming, and impedance-measurement techniques. Sensing elements and sensor systems for the measurement of mechanical quantities, and microarrays for DNA detection. Circuitdesign for sensor systems, such as the design of low-noise amplifiers, and measurement techniques at device level, such as dynamic offset cancellation and optical imagers. Implantable smart sensors for bio-medical applications and automotive sensors. A supplementary website hosts case studies and a solutions manual to the problems 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.
Author: M. Elwenspoek
Publisher: Springer Science & Business Media
ISBN: 3662043211
Category : Technology & Engineering
Languages : en
Pages : 306
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Book Description
This book on mechanical microsensors is based on a course organized by the Swiss Foundation for Research in Microtechnology (FSRM) in Neuchatel, Swit zerland, and developed and taught by the authors. Support by FSRM is herewith gratefully acknowledged. This book attempts to serve two purposes. First it gives an overview on me chanical microsensors (sensors for pressure, force, acceleration, angular rate and fluid flow, realized by silicon micromachining). Second, it serves as a textbook for engineers to give them a comprehensive introduction on the basic design issues of these sensors. Engineers active in sensor design are usually educated either in electrical engineering or mechanical engineering. These classical educa tional pro grams do not prepare the engineer for the challenging task of sensor design since sensors are instruments typically bridging the disciplines: one needs a rather deep understanding of both mechanics and electronics. Accordingly, the book contains discussion of the basic engineering sciences relevant to mechanical sensors, hopefully in a way that it is accessible for all colours of engineers. Engi rd th neering students in their 3 or 4 year should have enough knowledge to be able to follow the arguments presented in this book. In this sense, this book should be useful as textbook for students in courses on mechanical microsensors (as is CUf rently being done at the University ofTwente).
Author: Larry K. Baxter
Publisher: John Wiley & Sons
ISBN: 9780780353510
Category : Technology & Engineering
Languages : en
Pages : 324
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Book Description
Capacitive sensors produce spectacular resolution of movement to one part in 10-10 meters and maintain exceptional long-term stability in hostile environments. They are increasingly used for a variety of jobs in consumer and industrial equipment, including wall stud sensors, keypads, lamp dimmers, micrometers, calipers, rotation encoders, and more. The most focused, authoritative book available in the field, Capacitive Sensors brings you complete information on the research, design, and production of capacitive sensors. This all-in-one source provides detailed, comprehensive coverage of key topics, including underlying theory, electrode configuration, and practical circuits. In addition, you'll find reviews of a number of tested systems never before published. Capacitive Sensors is a must-have for product designers and mechanical and electrical engineers interested in using this fast-developing technology to get top price and performance advantages.
Author: IEEE Instrumentation and Measurement Society
Publisher:
ISBN:
Category : Electronic instruments
Languages : en
Pages : 758
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Book Description
Author: Sara Rachel Arussy Ruth
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Pressure and proximity sensors are widely used in the healthcare and robotics industries. Among other applications, they are used for patient monitoring and robotic surgery, playing an integral role in improving health and safety. Currently, there is an increasing demand for highly specialized sensors within these industries, but the path of designing such sensors can be very circular, requiring multiple redesigns. To better address this challenge, the process must be linearized by enabling more targeted sensor design. To achieve targeted design of sensors for specialized applications, there are five major objectives: (1) better understanding of current sensor technologies, (2) more reliable and reproducible sensor fabrication methods, (3) simple models to predict sensor performance, (4) design rules based on computational and experimental results to inform targeted sensor design, and (5) proven efficacy of the targeted design for specific applications. This dissertation goes through this process specifically for capacitive pressure and proximity sensors. Micro-engineered pressure sensors are of particular interest because of their high sensitivity, fast response, and low limits of detection. The micro-engineering techniques include micropatterned structures, porous layers, multilayered packed structures, and combined approaches, and are compared in terms of ease of fabrication, active layer uniformity, shape and size versatility and tunability, and scalability. Understanding the current sensor technologies, advantages of different sensor types, and fabrication methods led to a focus on capacitive pressure sensors with micropatterned structures. The fabrication method for capacitive pressure sensors was improved for consistency and reliability by introducing a lamination layer to anchor the micropatterned structures--pyramids in this case--to the second electrode. A series of equations modeling the dielectric layer as both a spring and electrical circuit was developed to predict sensor response and was confirmed experimentally. This model was then used to predict how a variety of design parameters impacted the sensitivity and initial capacitance of the sensor. Further, the model was expanded to include alternative microstructure geometries and more performance parameters, enabling a more extensive comparison of microstructure design. Once the dielectric layer of capacitive pressure sensors was better understood, an analysis of the effects of electrode design was investigated, specifically for fringe-field capacitive sensors capable of both pressure and proximity sensing. Four novel electrode designs were compared to a traditional parallel plate design. All fringe-field designs had proximity sensing capabilities, distinguish between pressure and proximity regimes, and distinguish between conductive and insulating materials, however only one could recapitulate most of the pressure sensing capabilities of the parallel plate capacitive sensor. Finally, the newly obtained sensor performance trends were applied to targetedly design a sensor for early detection and prevention of diseases after surgical vascular bypass or plaque removal. This sensor was effective in vitro, in vivo, and in a human cadaver without the need to redesign, thus demonstrating the efficacy of using the design guidelines developed for linear, targeted sensor design.
Author: Wouter Bracke
Publisher: Springer
ISBN: 9789048175772
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
This book describes ultra low power capacitive sensor interfaces, and presents the realization of a very low power generic sensor interface chip that is adaptable to a broad range of capacitive sensors. The book opens by reviewing important design aspects for autonomous sensor systems, discusses different building blocks, and presents the modular architecture for the generic sensor interface chip. Finally, the generic sensor interface chip is shown in state-of-the-art applications.
Author: Xiujun Li
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 168
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Book Description
Author:
Publisher:
ISBN:
Category : Integrated circuits
Languages : en
Pages : 456
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Book Description
Author: Daisuke Iida
Publisher:
ISBN:
Category :
Languages : en
Pages : 324
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Book Description
Position sensing is a key fundamental technology for any engineering or scientific related studies. Currently, the need for nanometer displacement measurement is increasing due to emerging nanotechnology applications. Capacitive displacement sensor (CDS) is one of the displacement sensing methods that has relatively low-cost, high-resolution, high-bandwidth characteristics, and has a capability to obtain nanometer level resolution. Digital signal processors, DSPs, in combination with analog to digital conversion hardware, are capable of providing analog signal conditioning, non-linear compensation, real-time control, numerical analysis and data transfer to a host computer for systems integration. The overall objective of the project is to develop marketable, DSP-based, high performance, easily integrated capacitive displacement sensors for precision positioning applications. In this thesis, three CDSs were designed, manufactured, integrated and evaluated for "a probe system for in-process hole measurement," "A compact, fast, tool-servo system," and "A high-resolution, fast, toolservo system," each having different sensor requirements. Within these studies, two different CDS configurations (single- and differential- CDS) were examined, and a novel multiplexing technique was investigated as a possible solution to enhance fundamental digital resolution. Fundamental issues and performance factors for CDSs were observed and analyzed, and several techniques were developed to overcome those problems. Lastly, constructive suggestions addressing the next generation capacitive sensor to provide longer-range, higher-resolution, -accuracy, and bandwidth are presented.
