Surface acoustic waves for the detection of small vibrations

Filipiak, J.; Kopycki, Cezary

doi:10.1016/s0924-4247(99)00211-3

Cited by 14 publications

(13 citation statements)

References 2 publications

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“…Parameter r is for the ratio of the mass at the end of plate to the mass of piezoelectric plate. The correction coefficient deduced by Rayleigh method in [9] is (1 + 3.9689 r) −0.5 .…”

Section: The Analysis Of Saw-vs Parametersmentioning

confidence: 99%

“…Sensors with SAW are used for measurements of many mechanical and physical values [1][2][3][4][5][6][7][8][9][10]. The most often * corresponding author; e-mail: gem@gemsc.com.pl SAW acceleration sensors are used [8][9][10][11].…”

Section: Surface Acoustic Wave Vibration Sensormentioning

confidence: 99%

“…The most often * corresponding author; e-mail: gem@gemsc.com.pl SAW acceleration sensors are used [8][9][10][11]. The SAW acceleration sensors may be used to detect vibrations of the environment.…”

Section: Surface Acoustic Wave Vibration Sensormentioning

confidence: 99%

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Surface Acoustic Wave Vibration Sensors for Linear Electronic Warning Systems

2009

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The topic of the paper is analysis of feasibility of surface acoustic wave vibration sensors for linear electronic warning systems. In linear warning systems localisation of the object is realised by pointing out the sensors which detect vibrations caused by the object. The information sent out by the detector enables identification of the sensor and its state. The sensor contains surface acoustic wave delay line in four-terminal network. The delay line is formed at the surface of piezoelectric plate. The vibrations of the plate are caused by vibrations of the medium surrounding the sensor. The frequency of the input signal is equal to the working frequency of delay line. The phase of the output signal is shifted in comparison with the input signal. The frequency of the phase shift would be equal to the resonance frequency of the sensor plate. The change of the output signal amplitude would be proportional to the amplitude of plate vibrations. The measured amplitude and frequency of the output signal would be registered by simple electronic devices. The measurements give us knowledge which sensor vibrates and the intensity of these vibrations. Such sensors enable construction of the electronic warning system.

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“…Parameter r is for the ratio of the mass at the end of plate to the mass of piezoelectric plate. The correction coefficient deduced by Rayleigh method in [9] is (1 + 3.9689 r) −0.5 .…”

Section: The Analysis Of Saw-vs Parametersmentioning

confidence: 99%

Section: Surface Acoustic Wave Vibration Sensormentioning

confidence: 99%

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Surface Acoustic Wave Vibration Sensors for Linear Electronic Warning Systems

2009

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“…These SAW-based sensors are used to measure a number of physical quantities: gas concentration [5][6][7][8], temperature, pressure [9][10][11][12][13], and mechanical quantities: torque of a rotating shaft [14], stress [15][16][17], acceleration [18][19] and vibrations [20][21]. All these SAW-based sensors work on the basis of measuring changes in the delay of a surface wave due to the impact of a physical quantity being measured on its speed and the propagation path.…”

Section: Figurementioning

confidence: 99%

Seismic Vibration Sensor with Acoustic Surface Wave

Filipiak¹,

Steczko²

2013

Modeling and Measurement Methods for Acoustic Waves and for Acoustic Microdevices

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“…Surface wave availability in SAW filters enables to apply them as sensors of various physical quantities [1][2][3][4][5][6][7]. A change in measured physical quantity causes a change in SAW propagation time.…”

Section: Introductionmentioning

confidence: 99%

Surface Acoustic Wave Vibration Sensor Electronic System

2011

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The paper presents surface acoustic wave vibration sensor electronic system. The system cooperates with surface acoustic wave delay line. The sensor has been designed for electronic warning systems. The sensor is a four-terminal network. In the system, there is a cascade connection of sensors by means of coaxial cable. Test signal and constant supply voltage are jointly sent between sensors. Separating the signals, their summation and amplification of test signal as well as matching the line to impedance 50 Ω are performed by surface acoustic wave vibration sensor electronic system. The electronic system devices and the making of them are discussed. System development of such a sensor is presented and its design is analysed. Experimental examination results of surface acoustic wave vibration sensor are presented. Parasitic effects occurring in vibration sensor electronic system operation connected with electromagnetic coupling and ground current coupling are discussed.

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Surface acoustic waves for the detection of small vibrations

Cited by 14 publications

References 2 publications

Surface Acoustic Wave Vibration Sensors for Linear Electronic Warning Systems

Surface Acoustic Wave Vibration Sensors for Linear Electronic Warning Systems

Seismic Vibration Sensor with Acoustic Surface Wave

Surface Acoustic Wave Vibration Sensor Electronic System

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