منابع مشابه
Local/global Saw Sensors for Turbulence
A new surface acoustic wave (SAW) sensor is developed through theoretical and experimental investigation to detect the surface forces (wall pressure and wall friction) and the direction of the turbulent flow as a function of position and time on the structure. The sensor is composed of a pair of SAWs having an identical center frequency with surface waves experencing shear stresses in opposite ...
متن کاملSAW Sensors for Chemical Vapors and Gases
Surface acoustic wave (SAW) technology provides a sensitive platform for sensing chemicals in gaseous and fluidic states with the inherent advantages of passive and wireless operation. In this review, we provide a general overview on the fundamental aspects and some major advances of Rayleigh wave-based SAW sensors in sensing chemicals in a gaseous phase. In particular, we review the progress i...
متن کاملSurface Acoustic Wave (SAW) Vibration Sensors
In the paper a feasibility study on the use of surface acoustic wave (SAW) vibration sensors for electronic warning systems is presented. The system is assembled from concatenated SAW vibration sensors based on a SAW delay line manufactured on a surface of a piezoelectric plate. Vibrations of the plate are transformed into electric signals that allow identification of the sensor and localizatio...
متن کاملCorrosion Monitoring Using Embedded Piezoelectric Sensors
In this research, a new type of corrosion monitoring technique for reinforce concrete was developed. The technique used piezoelectric sensors to detect the ultrasonic signals during corrosion. The mechanism of the method was presented. Experiment was carried out to monitor the corrosion process using piezoelectric sensors. The corrosion was also monitored using stain gauge for comparison.
متن کاملDiamond Coated LW - SAW Sensors - Study of Diamond Thickness Effect †
This study focuses on the fabrication and characterization of Love wave surface acoustic wave (LW-SAW) sensors with a thin nano-crystalline diamond (NCD) coating with an integrated microfluidics system. The effect of diamond layer thickness on the acoustic wave phase velocity and the sensor’s sensitivity have been investigated experimentally and compared with theoretical simulations. The fabric...
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ژورنال
عنوان ژورنال: Bulletin of the Japan Institute of Metals
سال: 1990
ISSN: 0021-4426,1884-5835
DOI: 10.2320/materia1962.29.652