A liquid properties sensor utilizing pressure waves

Hannes Antlinger; Roman Beigelbeck; Stefan Clara; Samir Cerimovic; Franz Keplinger; Bernhard Jakoby

A liquid properties sensor utilizing pressure waves

Hannes Antlinger, Roman Beigelbeck, Stefan Clara, Samir Cerimovic, Franz Keplinger, Bernhard Jakoby

Institute of Microelectronics and Microsensors

Research output: Chapter in Book/Report/Conference proceeding › Conference proceedings › peer-review

Abstract

Miniaturized sensors for fluid viscosity often utilize shear vibrations and thus measure a thin film of fluid. To probe the bulk of a sample, pressure waves can be utilized instead. Then, however, the so-called longitudinal viscosity is determined, which can be equally useful for condition monitoring applications. Moreover, this parameter has not yet been investigated in detail such that material data are scarce. In this paper, we report on a prototype setup utilizing standing acoustic pressure waves in a small sample chamber. The impact of these resonances on the impedance of a PZT transducer is modeled and investigated experimentally. It is demonstrated that with this setup sound velocity and the longitudinal viscosity of liquid samples can be investigated.

Original language	English
Title of host publication	Proceedings SPIE Volume 8066: Smart Sensors, Actuators, and MEMS V
Editors	SPIE
Pages	80661Z-1-80661Z-11
Number of pages	11
Volume	8066
Publication status	Published - Apr 2011

Fields of science

203017 Micromechanics
202019 High frequency engineering
202028 Microelectronics
202039 Theoretical electrical engineering
202037 Signal processing
202027 Mechatronics
202036 Sensor systems

JKU Focus areas

Mechatronics and Information Processing

Cite this

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title = "A liquid properties sensor utilizing pressure waves",

abstract = "Miniaturized sensors for fluid viscosity often utilize shear vibrations and thus measure a thin film of fluid. To probe the bulk of a sample, pressure waves can be utilized instead. Then, however, the so-called longitudinal viscosity is determined, which can be equally useful for condition monitoring applications. Moreover, this parameter has not yet been investigated in detail such that material data are scarce. In this paper, we report on a prototype setup utilizing standing acoustic pressure waves in a small sample chamber. The impact of these resonances on the impedance of a PZT transducer is modeled and investigated experimentally. It is demonstrated that with this setup sound velocity and the longitudinal viscosity of liquid samples can be investigated.",

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T1 - A liquid properties sensor utilizing pressure waves

AU - Antlinger, Hannes

AU - Beigelbeck, Roman

AU - Clara, Stefan

AU - Cerimovic, Samir

AU - Keplinger, Franz

AU - Jakoby, Bernhard

PY - 2011/4

Y1 - 2011/4

N2 - Miniaturized sensors for fluid viscosity often utilize shear vibrations and thus measure a thin film of fluid. To probe the bulk of a sample, pressure waves can be utilized instead. Then, however, the so-called longitudinal viscosity is determined, which can be equally useful for condition monitoring applications. Moreover, this parameter has not yet been investigated in detail such that material data are scarce. In this paper, we report on a prototype setup utilizing standing acoustic pressure waves in a small sample chamber. The impact of these resonances on the impedance of a PZT transducer is modeled and investigated experimentally. It is demonstrated that with this setup sound velocity and the longitudinal viscosity of liquid samples can be investigated.

AB - Miniaturized sensors for fluid viscosity often utilize shear vibrations and thus measure a thin film of fluid. To probe the bulk of a sample, pressure waves can be utilized instead. Then, however, the so-called longitudinal viscosity is determined, which can be equally useful for condition monitoring applications. Moreover, this parameter has not yet been investigated in detail such that material data are scarce. In this paper, we report on a prototype setup utilizing standing acoustic pressure waves in a small sample chamber. The impact of these resonances on the impedance of a PZT transducer is modeled and investigated experimentally. It is demonstrated that with this setup sound velocity and the longitudinal viscosity of liquid samples can be investigated.

M3 - Conference proceedings

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SP - 80661Z-1-80661Z-11

BT - Proceedings SPIE Volume 8066: Smart Sensors, Actuators, and MEMS V

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