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Integrated 915MHZ OFC SAW sensors
2010 IEEE 11th Annual Wireless and Microwave Technology Conference (WAMICON), 2010The purpose of this paper is to present recent results on the integration of SAW orthogonal frequency coded (OFC) wireless sensors into a unified sensor target at 915MHz. Current proof of concept embodiments at 250MHz and 915MHz have been successful in demonstrating a functional sensor design and working interrogation system. However, previous work has
Gallagher, Mark W. +2 more
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SAW resonators as vapor sensors
IEEE Symposium on Ultrasonics, 2002The application of SAW (surface acoustic wave) resonators as substance-of-abuse vapor sensors is described. High-Q SAW resonators configured as vapor/mass detectors are an optimally sensitive SAW geometry. The SAW resonator is able to achieve sensitivities approaching femtogram levels and exhibits a nearly true fourth-order sensitivity vs.
G. Watson, E. Staples
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A review of wireless SAW sensors
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2000Wireless 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 ...
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SAW sensors for harsh environments
IEEE Sensors Journal, 2001Surface acoustic wave (SAW) sensors are rugged components made on highly stable substrate materials. In addition, by their operating principle they lend themselves to wireless readout by radio signals. For these reasons, they are a first choice for sensing in harsh environments. A review is given on SAW device design, instrumentation of sensor systems,
Wolff, Ulrich +4 more
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SAW Sensor with HFM Reflectors
2018 IEEE International Frequency Control Symposium (IFCS), 2018A 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 +4 more
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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 +2 more
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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 +2 more
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Compensated SAW Yarn Tension Sensor
IEEE Transactions on Instrumentation and Measurement, 2014The 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
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Surface Acoustic Wave (SAW) Gas Sensors
1992In 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
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SAW-based radio sensor systems
IEEE Sensors Journal, 2001Surface 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 +3 more
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A Difference SAW Rotation Sensor
2006 IEEE International Conference on Information Acquisition, 2006The 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
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