Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Increasing The Sensitivity Of Surface Acoustic Wave Saw Chemical Sensors And Other Chemical Sensing Investigations PDF full book. Access full book title Increasing The Sensitivity Of Surface Acoustic Wave Saw Chemical Sensors And Other Chemical Sensing Investigations.
| Author | : Nina R. Smith |
| Publisher | : |
| Total Pages | : 258 |
| Release | : 2010 |
| Genre | : Acoustic surface wave devices |
| ISBN | : |
| Author | : Michael Thompson |
| Publisher | : Wiley-Interscience |
| Total Pages | : 224 |
| Release | : 1997-04-11 |
| Genre | : Science |
| ISBN | : |
This book concerns the design, operation and application of devices capable of generating acoustic waves in the ultrasonic frequency range. It emphasizes the study of chemical and/or biochemical systems imposed on the surface of such devices, whether operated in the gas- or liquid-phase, i.e. on acoustic wave chemical and biological sensors. It focuses on devices that employ acoustic waves launched and received on the same surface. It touches upon such diverse areas as acoustic wave physics, applied mathematics, chemistry, electronics, fluid mechanics, materials science and polymer science.
| Author | : Frank Dickinson MacDonald |
| Publisher | : |
| Total Pages | : 76 |
| Release | : 2010 |
| Genre | : Acoustic surface wave devices |
| ISBN | : 9781124400365 |
We present an experimental study of mass sensitivity for a Surface Acoustic Wave (SAW) sensor. Chemical SAW sensors have been developed to detect the mass variation of the mass adsorbed into sensing film by showing resonant frequency shifts. Previous experimental results have focused on the static sensitivity of theoretical SAW sensors assuming that the film thickness is negligible compared to the central wavelength of surface waves. Most current research is focused on dynamic experimental measurement and analytical techniques that are application specific. We have studied a SAW sensor with relatively thick isotropic film layers sputtered on as a static measurement comparison. The results can be used in a detection algorithm to quantify mass on the SAW sensor. Our results show a set of nodal response wave form changes and frequency shifts due to a continuous mass distribution. The development of the static experimental technique was completed with duplicate SAW tests. The duplicate SAWs had 12 measurements with 10 independently sputtered layers of 100 m SiO 2, hermitically sealed, and hermitical seal removed using a HP8510A network analyzer. In addition, our results show worst case total error of 0.1% between replicates. Further testing and modeling is required to correlate macro to micro scales for quantifying mass detection with SAW sensors. This research discusses the issues of utilizing a SAW sensor that could be readily integrated into cell phones for distributed sensing as being requested by Homeland Security.
| Author | : D. S. Ballantine Jr. |
| Publisher | : Elsevier |
| Total Pages | : 451 |
| Release | : 1996-10-21 |
| Genre | : Science |
| ISBN | : 0080523331 |
Written by an interdisciplinary group of experts from both industry and academia, Acoustic Wave Sensors provides an in-depth look at the current state of acoustic wave devices and the scope of their use in chemical, biochemical, and physical measurements, as well as in engineering applications. Because of the inherent interdisciplinary applications of these devices, this book will be useful for the chemist and biochemist interested in the use and development ofthese sensors for specific applications; the electrical engineer involved in the design and improvement of these devices; the chemical engineer and the biotechnologist interested in using these devices for process monitoring and control; and the sensor community at large. Provides in-depth comparison and analyses of different types of acoustic wave devices Discusses operating principles and design considerations Includes table of relevant material constants for quick reference Presents an extensive review of current uses of these devices for chemical, biochemical, and physical measurements, and engineering applications
| Author | : Michael Alan Butler |
| Publisher | : The Electrochemical Society |
| Total Pages | : 478 |
| Release | : 1999 |
| Genre | : Technology & Engineering |
| ISBN | : 9781566772464 |
| Author | : Claus-Dieter Kohl |
| Publisher | : Springer |
| Total Pages | : 348 |
| Release | : 2014-08-18 |
| Genre | : Science |
| ISBN | : 364254519X |
This volume, which addresses various basic sensor principles, covers micro gravimetric sensors, semiconducting and nano tube sensors, calorimetric sensors and optical sensors. Furthermore, the authors discuss recent developments in the related sensitive layers including new properties of nano structured metal oxide layers. They provide in-depth insights into the unique chemistry and signal generation of copper oxide in percolating sensors and present a variety of applications of functional polymers made possible by proper imprinting. Highlights of the subjects covered include: • requirements for high-temperature sensors • carbon nano tube sensors • new sensing model for nanostructured In2O3 • bio mimetic approach for semiconductor sensor-based systems • optical readout for inorganic and organic semiconductor sensors • concept of virtual multisensors to improve specificity and selectivity • calorimetric sensors for hydrogen peroxide detection • percolation effect-based sensors to implement dosimeters • imprinted polymer layers for bulk and surface acoustic wave sensors
| Author | : |
| Publisher | : |
| Total Pages | : 478 |
| Release | : 1999 |
| Genre | : Chemical detectors |
| ISBN | : |
| Author | : Pierre Laszlo |
| Publisher | : Elsevier |
| Total Pages | : 317 |
| Release | : 2012-12-02 |
| Genre | : Science |
| ISBN | : 0323156347 |
NMR of Newly Accessible Nuclei, Volume 1: Chemical and Biochemical Applications is a 10-chapter text that explores the properties, advantages, developments, and chemical and biochemical applications of NMR technique. This book describes first the operation of an NMR spectrometer under its two aspects, namely, the instrumental and the computational aspects. The next chapters are devoted to some of the most important pulse sequences. The discussion then shifts to the various factors determining the position of the observed absorption and those responsible for the various relaxation processes. The last chapters deal with the specific applications of NMR, including in cation salvation, calcium-binding proteins, polyelectrolyte systems, halogens, and antibiotic ionophores. This book is of value to inorganic and analytical chemists, and biophysicists.
| Author | : Wen Wang |
| Publisher | : BoD – Books on Demand |
| Total Pages | : 192 |
| Release | : 2016-08-24 |
| Genre | : Science |
| ISBN | : 953512532X |
Although the history of chemical sensor dates back not long ago, it has attracted great research interest owing to its many excellent properties such as small size, satisfactory sensitivity, larger dynamic range, low cost, and easy-to-realize automatic measurement and on-line or in situ and continuous detection. With decades of vigorous research works, various sophisticated chemical sensors have been widely used in environmental conservation and monitoring, industrial process monitoring, gas composition analysis, medicine, national defense and public security, and on-site emergency disposal. Hence, the chemical sensor becomes one of the most active and effective directions of modern sensor technology. A typical chemical sensor is the analyzer that responds to a particular analyte in a selective and reversible way and transforms input chemical quantity, ranging from the concentration of a specific sample component to total composition analysis, into an analytically electrical signal. This book is an attempt to highlight recent progresses in the chemical sensors. It is composed of seven chapters and divided into four sections categorized by the working principle of the chemical sensor. This collection of up-to-date information and the latest research progress on chemical sensor will provide valuable references and learning materials for all those working in the field of chemical sensors.
| Author | : |
| Publisher | : |
| Total Pages | : 6 |
| Release | : 1999 |
| Genre | : |
| ISBN | : |
Chemically sensitive polymers coated on delay lines utilizing shear horizontal surface acoustic wave (SH-SAW) sensors are investigated for the detection of organic analytes in liquid environments. The SH-SAW sensor platform was designed and fabricated on 36° rotated Y-cut LiTaO3. By depositing a SiO2 dielectric layer over the entire device prior to applying the polymer film, partial electrical passivation of the interdigital transducers (IDT) is obtained while increasing the mass sensitivity of the device. Changes in the mechanical properties of the chemically sensitive polymer materials were clearly detectable through a frequency shift at least one order of magnitude larger than that of a coated-quartz crystal resonator (QCR) in a similar experiment.
