Separate Determination of Liquid Properties with Lamb Wave Devices

Chen, Zhijun; Han, Tao; Shi, Wenyu; Ji, Xiaojun; Liang-er, LI

doi:10.1109/freq.2006.275406

Cited by 4 publications

(2 citation statements)

References 10 publications

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“…The phase velocity of the Lamb waves within the evanescent penetration field will be the same with the phase velocity inside the membrane. Taking account of the bending stiffness and the in-plane tension of the plate (B i ) for the A 01 mode and the A 03 mode, the phase velocity will be [31,36]:

c_{P_{i}} = \sqrt{B_{i} / (M + m_{L i})}

where i denotes 1 or 3 for the A 0i mode, B i reflects the influences of the bending stiffness and the in-plane tension of the plate for the A 0i mode, M is the mass per unit area of the plate, the effective mass m Li in the so-called evanescent penetration depth δ Ei equals:

m_{L i} = ρ_{L} δ_{E i}

…”

Section: Working Principlementioning

confidence: 99%

A Multi-Parameter Decoupling Method with a Lamb Wave Sensor for Improving the Selectivity of Label-Free Liquid Detection

Zhou

Xuan

et al. 2012

Sensors

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In this paper, a liquid multi-parameter decoupling method with only one Lamb wave sensor is presented. In a Lamb wave sensor, antisymmetric modes (A01 mode for low frequency, A03 mode for high frequency) and symmetric modes (S0 mode) are used to detect multiple parameters of a liquid, such as its density, sound velocity, and viscosity. We found they can play very different roles in the detections. For example, the A01 mode is very sensitive to the liquid's density but the A03 mode is sensitive to the sound velocity. Here, the A0 mode is used to identify the density of the detected liquid and with this density value we obtained the viscosity by the amplitude shifts of the S0 mode. This could be a way to distinguish an unknown liquid with high sensitivity or to solve the problem of selectivity of label-free detection on biosensors.

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c_{P_{i}} = \sqrt{B_{i} / (M + m_{L i})}

m_{L i} = ρ_{L} δ_{E i}

…”

Section: Working Principlementioning

confidence: 99%

A Multi-Parameter Decoupling Method with a Lamb Wave Sensor for Improving the Selectivity of Label-Free Liquid Detection

Zhou

Xuan

et al. 2012

Sensors

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“…The measurement of liquid viscosity is required in many applications [1] . Compared with traditional measurement methods, SAW (surface acoustic wave) device is especially suitable for harsh environment [2] . Love wave device is one of the typical SAW devices, it only has shear-horizontal displacement, so the attenuation of vibration is small.…”

Section: Introductionmentioning

confidence: 99%

Theory modeling of love wave device loaded with viscous liquid

Wang

Chen

Xia

et al. 2012

2012 IEEE International Frequency Control Symposium Proceedings

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Love wave device is one of the typical SAW(surface acoustic wave) devices. Relative to other acoustic sensors, the Love wave liquid sensor has some obvious advantages. In this paper, the theory model of Love wave is established, the influences of liquid viscosity on propagation velocity and attenuation of Love wave are numerically analyzed. The changes of Love wave sensitivity to liquid viscosity and density with the ratio of the film thickness to the acoustic wavelength are numerically analyzed.

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Propagation of Love Waves in Composite Layered Structures Loaded with Viscous Liquid

Pramanik

Gupta

2016

Procedia Engineering

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Separate Determination of Liquid Properties with Lamb Wave Devices

Cited by 4 publications

References 10 publications

A Multi-Parameter Decoupling Method with a Lamb Wave Sensor for Improving the Selectivity of Label-Free Liquid Detection

A Multi-Parameter Decoupling Method with a Lamb Wave Sensor for Improving the Selectivity of Label-Free Liquid Detection

Theory modeling of love wave device loaded with viscous liquid

Propagation of Love Waves in Composite Layered Structures Loaded with Viscous Liquid

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