Results 221 to 230 of about 121,086 (257)

SAW Sensor with HFM Reflectors

2018 IEEE International Frequency Control Symposium (IFCS), 2018
A SAW temperature sensor exploiting Ultra-Wide-Band (UWB) Hyperbolically Frequency Modulated (HFM) signals is designed and manufactured. The device operates in the 2000MHz to 2500MHz frequency range (and B of 500MHz). The dispersive grooved reflectors have HFM pulses as an impulse response with durations of 1000ns (BxT of 500).
V. Plessky, S. Yandrapalli, A. Shimko, R. Miskinis, D. Smirnov   +4 more
openaire   +1 more source

AlN films for SAW sensors

Sensors and Actuators A: Physical, 1991
Abstract The technology of obtaining thin AlN piezoelectric films on a glass substrate by means of a reactive r.f. magnetron sputtering method is considered. For obtaining polycrystalline oriented films with perfect crystallization, it is necessary to have certain technological conditions for their growth.
M.A. Odintzov, N.I. Sushentzov, T.L. Kudryavtzev   +2 more
openaire   +1 more source

Compensated SAW Yarn Tension Sensor

IEEE Transactions on Instrumentation and Measurement, 2014
The measurement and control of yarn tension is important in textile technology. This paper presents a two channel architecture surface acoustic wave yarn tension sensor, which is able to provide a sensitivity about two times bigger than the previous one. The design and the fabrication of the devices are also presented.
Xiaozhou Lu, Wenke Lu, Changchun Zhu
openaire   +1 more source

Surface Acoustic Wave (SAW) Gas Sensors

1992
In recent years there has been a great interest in using surface acoustic wave (SAW) devices for the detection of both physical and chemical quantities. The SAWs in the field of sensors give rise to an interesting basic detecting technique since the mechanism of interaction between the acoustic propagation, which induces the sensor response, includes ...
C. Caliendo, E. Verona, A. D'Amico
openaire   +4 more sources

SAW-based radio sensor systems

IEEE Sensors Journal, 2001
Surface acoustic wave (SAW) devices can be used as identification and sensor elements (SAW transponders) for mea- suring physical quantities such as temperature, pressure, torque, acceleration, humidity, etc., that do not need any power supply and may be accessed wirelessly.
Reindl, Leonhard Michael, Pohl, Alfred, Scholl, Gerd, Weigel, Robert   +3 more
openaire   +2 more sources

A Difference SAW Rotation Sensor

2006 IEEE International Conference on Information Acquisition, 2006
The characteristics of surface acoustic wave (SAW) propagating along rolling plates will change because of the existence of Coriolis force and centrifugal force. The change of the characteristics of SAW will lead a frequency shift. According to this, a new scheme of a difference rotation sensor using SAW device is discussed.
Wei Yi-qun, Li Wei, Zhu Jia-lin
openaire   +1 more source

Vapor phase SAW immunoassay sensors

Proceedings of IEEE Sensors, 2003
In this paper, we present the results of a series of experiments demonstrating real-time vapor phase detection of cocaine molecules using immunosensors based on surface acoustic wave (SAW) resonators.
D.D. Stubbs, null Sang-Hun Lee, W.D. Hunt   +2 more
openaire   +1 more source

Vapor phase SAW immunoassay sensors

2001 IEEE Ultrasonics Symposium. Proceedings. An International Symposium (Cat. No.01CH37263), 2002
In this paper we present the results of a series of experiments on vapor phase SAW biosensors. For these experiments the sensor component was a ST-X Quartz resonator with a center frequency of approximately 250MHz. Antibodies were attached to the electrodes on the device surface via a protein-A crosslinker.
D.D. Stubbs, W.D. Hunt, S.H. Lee, D.F. Doyle   +3 more
openaire   +1 more source

Novel structure SAW mass sensor

Proceedings of 2005 International Conference on Intelligent Sensing and Information Processing, 2005., 2005
Y-type structure of dual delay line mass sensor with slanting metal array reflectors was developed based on multi-strip coupler. The novel structure can not only avoid the bulk wave efficiently, but also reduce the triple-transit-interference (TTI) and multiple reflections. P-matrix was used to analyze the sensor properties.
null Yang Ying, null Zhu Da-zhong
openaire   +1 more source

Gas chromatography utilizing SAW sensors

IEEE 1991 Ultrasonics Symposium, 2002
The performance of a high-speed (10-15-s) gas chromatography system for the detection of illicit materials is described. The system is based on an isothermal capillary column gas chromatograph (GC) and a 500-MHz surface acoustic wave (SAW) crystal decoder.
G. Watson, W. Horton, E. Staples
openaire   +1 more source