Download or read book The Development of Integrated Chemical Microsensors in GaAs written by and published by . This book was released on 1999 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: Monolithic, integrated acoustic wave chemical microsensors are being developed on gallium arsenide (GaAs) substrates. With this approach, arrays of microsensors and the high frequency electronic components needed to operate them reside on a single substrate, increasing the range of detectable analytes, reducing overall system size, minimizing systematic errors, and simplifying assembly and packaging. GaAs is employed because it is both piezoelectric, a property required to produce the acoustic wave devices, and a semiconductor with a mature microelectronics fabrication technology. Many aspects of integrated GaAs chemical sensors have been investigated, including: surface acoustic wave (SAW) sensors; monolithic SAW delay line oscillators; GaAs application specific integrated circuits (ASIC) for sensor operation; a hybrid sensor array utilizing these ASICS; and the fully monolithic, integrated SAW array. Details of the design, fabrication, and performance of these devices are discussed. In addition, the ability to produce heteroepitaxial layers of GaAs and aluminum gallium arsenide (AlGaAs) makes possible micromachined membrane sensors with improved sensitivity compared to conventional SAW sensors. Micromachining techniques for fabricating flexural plate wave (FPW) and thickness shear mode (TSM) microsensors on thin GaAs membranes are presented and GaAs FPW delay line and TSM resonator performance is described.

Download or read book Development of a GaAs Based Monolithic Surface Acoustic Wave Integrated Chemical Microsensor written by and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: An oscillator technology using surface acoustic wave delay lines integrated with GaAs MESFET electronics has been developed for GaAs-based integrated microsensor applications. Oscillators with frequencies of 470, 350, and 200 MHz have been designed and fabricated. These oscillators are also promising for other rf applications.

Download or read book Entwicklungsagentur Ruhrgebiet written by and published by . This book was released on 1989 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monolithic Integration of GaAs SAW Chemical Microsensor Arrays and Detection Electronics written by and published by . This book was released on 2000 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors describe the integration of an array of surface acoustic wave delay line chemical sensors with the associated RF microelectronics such that the resulting device operates in a DC in/DC out mode. The microelectronics design for on-chip RF generation and detection is presented. Both hybrid and monolithic approaches are discussed. This approach improves system performance, simplifies packaging and assembly, and significantly reduces overall system size. The array design can be readily scaled to include a large number of sensors.

Download or read book Energy and Water Development Appropriations for 1998 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development and published by . This book was released on 1997 with total page 1278 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy and Water Development Appropriations for 1998 Department of Energy written by United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development and published by . This book was released on 1997 with total page 1262 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy and Water Development Appropriations for 1999 Secretary of Energy Departmental administration written by United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development and published by . This book was released on 1998 with total page 1890 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Report written by United States. Department of Energy. Chemical & Biological Nonproliferation Program and published by . This book was released on 1999 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy and Water Development Appropriations for 1999 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Energy and Water Development and published by . This book was released on 1998 with total page 2032 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Compound Semiconductor written by and published by . This book was released on 1999 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book GaAs based Integrated Microsensors written by Jun Rim Choi and published by . This book was released on 1991 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Chemical Microsensors and Applications II written by Stephanus Büttgenbach and published by SPIE-International Society for Optical Engineering. This book was released on 1999 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work presents a selection of papers dealing with various aspects of chemical microsensors and their applications.

Download or read book Expanding the Vision of Sensor Materials written by Committee on New Sensor Technologies: Materials and Applications and published by National Academies Press. This book was released on 1995-07-06 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in materials science and engineering have paved the way for the development of new and more capable sensors. Drawing upon case studies from manufacturing and structural monitoring and involving chemical and long wave-length infrared sensors, this book suggests an approach that frames the relevant technical issues in such a way as to expedite the consideration of new and novel sensor materials. It enables a multidisciplinary approach for identifying opportunities and making realistic assessments of technical risk and could be used to guide relevant research and development in sensor technologies.

Download or read book MEMS A Practical Guide of Design Analysis and Applications written by Jan Korvink and published by Springer Science & Business Media. This book was released on 2010-05-28 with total page 981 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new generation of MEMS books has emerged with this cohesive guide on the design and analysis of micro-electro-mechanical systems (MEMS). Leading experts contribute to its eighteen chapters that encompass a wide range of innovative and varied applications. This publication goes beyond fabrication techniques covered by earlier books and fills a void created by a lack of industry standards. Subjects such as transducer operations and free-space microsystems are contained in its chapters. Satisfying a demand for literature on analysis and design of microsystems the book deals with a broad array of industrial applications. This will interest engineering and research scientists in industry and academia.

Download or read book Mechatronic Systems Sensors and Actuators written by Robert H. Bishop and published by CRC Press. This book was released on 2017-07-28 with total page 774 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the key elements of physical systems modeling, sensors and actuators, signals and systems, computers and logic systems, and software and data acquisition. It describes mathematical models of the mechanical, electrical, and fluid subsystems that comprise many mechatronic systems.

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Download or read book The Mechatronics Handbook 2 Volume Set written by Robert H. Bishop and published by CRC Press. This book was released on 2002-02-26 with total page 1272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mechatronics has evolved into a way of life in engineering practice, and indeed pervades virtually every aspect of the modern world. As the synergistic integration of mechanical, electrical, and computer systems, the successful implementation of mechatronic systems requires the integrated expertise of specialists from each of these areas. De