SAW – TechConnect Briefs

Numerical Analysis of Acoustophoretic Discrete Particle Focusing in Microchannels

Karampelas I.H., Gómez-Pastora J., Cowan M.J., Bringas E., Ortiz I., Furlani E.P., Flow Science Inc., US

Acoustophoretic particle focusing is a modern and very attractive method of removing a variety of objects from solutions in a microfluidic channel [1]. The process is inherently general and can be readily extended for multiple [...]

Aerospace Applications for Surface Acoustic Wave Devices

Wilson W., NASA Langley Research Center, US

Surface acoustic wave (SAW) technology can be used to create a variety of different sensors, including strain, chemical, pressure, and temperature. These sensors can be configured to be passive and wireless, which could be useful [...]

Single resonator GaN/Si SAW based temperature sensor

Muller A., Konstantinidis G., Dinescu A., Stefanescu A., Cismaru A., Buiculescu V., Giangu I., Stavrinidis A., Stavrinidis G., Stavrinidis A., Stavrinidis G., IMT-Bucharest, RO

The use of GaN based SAW type sensors has a major advantage for temperature measurements in GaN MMICs because of the possibility of monolithic integration of the temperature sensor and the possibility to place the [...]

Temperature and Strain Coefficient of Velocity for Langasite SAW Devices

Wilson W.C., Atkinson G.M., NASA Langley Research Center, US

Surface Acoustic Wave sensors on Langasite substrates are being investigated for aerospace applications by NASA’s Vehicle Systems Safety Technologies (VSST) project. Strain sensors are being developed using the Langasite. Characterization of the Langasite material properties [...]

Modeling and Simulation of Surface Acoustic Wave Chemical Sensors

Husak M., Laposa A., Kroutil J., Czech Technical University in Prague, Faculty of Electrical Engineering, CZ

In this paper, we present the design and modeling considerations of SAW (Surface Acoustic Wave) chemical sensors based on various structures. These sensors can be used for identifying environmental contaminants in large applications scale. Various [...]

Gas Sensor with SAW Structures

Laposa A., Husak M., Kroutil J., Czech Technical University in Prague, Faculty of Electrical Engineering, CZ

The objective of this paper is presents the modeling and simulation of SAW (Surface Acoustic Wave) gas sensors based on one-port and two-port interdigitated metal structures. These sensors can be used for identifying environmental contaminants [...]

Modeling of a Surface Acoustic Wave Strain Sensor

Wilson W.C., Atkinson G.M., NASA Langley Research Center, US

NASA’s Integrated Vehicle Health Monitoring (IVHM) project is investigating new detection technologies that will increase aviation safety by monitoring the structural health of aerospace vehicles during flight. These new technologies must be rugged, light weight [...]

Parameterizable Library Components for SAW Devices

Wilson W.C., Atkinson G.M., NASA Langley Research Center, US

The lack of integrated design tools for SAW devices has led us to develop tools that in the future will enable integrated design, modeling, simulation, analysis and automatic layout generation of Surface Acoustic Wave (SAW) [...]