Surface acoustic wave sensor

About: Surface acoustic wave sensor is a research topic. Over the lifetime, 4638 publications have been published within this topic receiving 65759 citations.

Acoustic wave sensors : theory, design, and physico-chemical applications

Abstract: Why Acoustic Sensors Fundamentals of Acoustic Wave Devices Acoustic Wave Sensors and Responses Materials Characterization Chemical and Biological Sensors Practical Aspects of Acoustic-Wave Sensors Subject Index Reduced Index Notation Mechanical Properties of Selected Materials Piezoelectric Stress Constants Properties of Several SAW Substrate Materials Acoustoelectric Properties of Several SAW Substrate Materials Moduli Associated with the Strain Modes Generated by a SAW in an Acoustically Thin Film SAW-Film Coupling Parameter and Phase Angles for SAW Propagation in the X-Direction of ST-Cut Quartz FPW Density Determinations for Low-Viscosity Liquids Gravimetric Sensitivities of Acoustic Sensors Qualitative Comparison of Acoustic Sensors Typical Mass Sensitivities of Acoustic Wave Devices Classification of Coating-Analyte Interactions and Approximate Energies Adsorbent Materials and Typical Adsorbates Adsorption Capacities of Organic Vapors on Activated Charcoal Examples of Adsorption-Based Acoustic Wave Sensors Sorption Capacity of Natural Rubber for Several Organic Solvents Typical Examples of Polymer-Coated Acoustic Wave Sensors Examples of Biochemical Acoustic Wave Sensors Cluster Classification of Coatings for Use in a TSM Sensor Array Center Frequency and Dimensions of Commercial TSM AT-Quartz Resonators IDT Design Parameters for ST-Quartz-Based SAW Sensor Devices"

Surface acoustic wave biosensors: a review

Abstract: This review presents an overview of 20 years of worldwide development in the field of biosensors based on special types of surface acoustic wave (SAW) devices that permit the highly sensitive detection of biorelevant molecules in liquid media (such as water or aqueous buffer solutions). 1987 saw the first approaches, which used either horizontally polarized shear waves (HPSW) in a delay line configuration on lithium tantalate (LiTaO3) substrates or SAW resonator structures on quartz or LiTaO3 with periodic mass gratings. The latter are termed “surface transverse waves” (STW), and they have comparatively low attenuation values when operated in liquids. Later Love wave devices were developed, which used a film resonance effect to significantly reduce attenuation. All of these sensor approaches were accompanied by the development of appropriate sensing films. First attempts used simple layers of adsorbed antibodies. Later approaches used various types of covalently bound layers, for example those utilizing intermediate hydrogel layers. Recent approaches involve SAW biosensor devices inserted into compact systems with integrated fluidics for sample handling. To achieve this, the SAW biosensors can be embedded into micromachined polymer housings. Combining these two features will extend the system to create versatile biosensor arrays for generic lab use or for diagnostic purposes.

A review of wireless SAW sensors

Abstract: Wireless measurement systems with passive surface acoustic wave (SAW) sensors offer new and exciting perspectives for remote monitoring and control of moving parts, even in harsh environments. This review paper gives a comprehensive survey of the present state of the measurement systems and should help a designer to find the parameters required to achieve a specified accuracy or uncertainty of measurement. Delay lines and resonators have been used, and two principles have been employed: SAW one-port devices that are directly affected by the measurand and SAW two-port devices that are electrically loaded by a conventional sensor and, therefore, indirectly affected by the measurand. For radio frequency (RF) interrogation, time domain sampling (TDS) and frequency domain sampling (FDS) have been investigated theoretically and experimentally; the methods of measurement are described. For an evaluation of the effects caused by the radio interrogation, we discuss the errors caused by noise, interference, bandwidth, manufacturing, and hardware tuning. The system parameters, distance range, and measurement uncertainty are given numerically for actual applications. Combinations of SAW sensors and special signal processing techniques to enhance accuracy, dynamic range, read out distance, and measurement repetition rate (measurement bandwidth) are presented. In conclusion, an overview of SAW sensor applications is given.

Surface Acoustic Wave Devices and Their Signal Processing Applications

Abstract: Acoustic waves at microwave frequencies have been widely used in signal processing applications. They are also emerging as a promising approach for communication and manipulation of quantum information. However, dynamic control of acoustic waves in a...Academic Press, 1989. 484 p. ISBN 978-0121573454. Surface Acoustic Wave Devices and Their Signal Processing Applications is a textbook that combines experiment and theory in assessing the signal processing applications of surface acoustic wave (SAW) devices. ...and Their Signal Processing Applications is a textbook that combines experiment and theory in assessing the signal processing applications of surface acoustic wave historical background on surface acoustic waves and a discussion on the merits of SAW devices as well as their applications.Surface-acoustic waves (SAWs) are sound waves that travel parallel to the surface of an elastic material, with their displacement amplitude [1] See, for example, the books: "Surface acoustic wave devices and their signal processing applications," C. Campbell, Academic press, London, 1989. Surface Acoustic Wave Devices and Their Signal Processing Applications Books by Colin Campbell Author uploaded on Nov 22, 2021. Surface Acoustic Wave Devices and Their Signal Processing Applications by Colin Campbell ePDF Onlines Book