Application of resonant steel tuning forks with circular and rectangular cross sections for precise mass density and viscosity measurements

Heinisch, Martin; Voglhuber-Brunnmaier, Thomas; Reichel, Erwin K.; Dufour, Isabelle; Jakoby, Bernhard

doi:10.1016/j.sna.2015.02.007

Cited by 45 publications

(26 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Special solutions with the same viscosity but different densities and the same density but different viscosities are prepared for this calibration step similar to the solutions used in recent studies [6,7,[24][25][26]. This step should be conducted for only one time for each sensor geometry.…”

Section: Calibration Of the Sensormentioning

confidence: 99%

Precision density and viscosity measurement using two cantilevers with different widths

Çakmak

Ermek

Kılınç

et al. 2015

Sensors and Actuators A: Physical

View full text Add to dashboard Cite

Section: Calibration Of the Sensormentioning

confidence: 99%

Precision density and viscosity measurement using two cantilevers with different widths

Çakmak

Ermek

Kılınç

et al. 2015

Sensors and Actuators A: Physical

View full text Add to dashboard Cite

“…However, the purpose of this work was a feasibility study of torsional, resonant viscosity and mass density sensors, their modeling and first designs of promising demonstrators. In [28] the advantages and capability of resonant viscosity and mass density sensors using conventional steel tuning forks with circular and rectangular cross sections was demonstrated.…”

Section: Measurement Accuracymentioning

confidence: 99%

Electromagnetically driven torsional resonators for viscosity and mass density sensing applications

Heinisch¹,

Voglhuber-Brunnmaier²,

Reichel³

et al. 2015

Sensors and Actuators A: Physical

Self Cite

View full text Add to dashboard Cite

In this contribution a conceptual study for torsional oscillators, which are electromagnetically driven and read out, is presented. The aim is to experimentally investigate the basic feasibility of a torsional resonator with application to viscosity and mass density sensing in liquids. Such a device is particularly interesting as cylindrical, torsional resonators for fluid sensing applications are hardly reported but unlike many other devices, yield pure shear wave excitation in the liquid. The design of first conceptual demonstrators for measurements in air as well as in liquids and their benefits and disadvantages are discussed in detail. A closed form as well as a reduced order model and measurement results obtained with first demonstrators are presented.

show abstract

“…The complex frequency spectra of driven steady-state oscillations of our sensors are acquired with commercial impedance [7] or network [8] analyzers, lock-in amplifiers [9], [10] and self designed impedance analyzer circuits [11], [12]. The resonance parameter estimation algorithm from Niedermayer et al [13] processes the recorded complex frequency spectrum efficiently.…”

Section: Introductionmentioning

confidence: 99%

“…Fig. 2 (center) shows a steel tuning fork setup using a liquid immersed standard 440Hz tuning fork with electromagnetic excitation and inductive readout, suitable for higher viscosities [10] and simultaneous measurement of density and viscosity. The resonance behavior is recorded using a lock-in amplifier (Stanford Research SR830) in two-port transimpedance configuration.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Modeling-free evaluation of resonant liquid sensors for measuring viscosity and density

Voglhuber-Brunnmaier

Niedermayer

Heinisch

et al. 2015

2015 9th International Conference on Sensing Technology (ICST)

Self Cite

View full text Add to dashboard Cite

A performance estimation method for resonant viscosity and density sensors is described. The ultimate sensor precision and the separability of density and viscosity from measured frequency spectra are estimated. The approach relies on using recently introduced models which are flexible enough to describe a large class of sensors. It is therefore not required to develop a specific sensor model and a parameter extraction method for each newly devised sensor. With the method introduced in this contribution, it is sufficient to adjust and validate a general model using at least three test liquids. Then, the error propagation and the error bounds for viscosity and density can be estimated and consequently the required signal-to-noise ratio (SNR) or the amount of required data points can be determined. This method enables direct comparison of different sensor setups as will be demonstrated for piezoelectric tuning fork sensors, electrodynamic platelet sensors and steel tuning forks.

show abstract

Application of resonant steel tuning forks with circular and rectangular cross sections for precise mass density and viscosity measurements

Cited by 45 publications

References 36 publications

Precision density and viscosity measurement using two cantilevers with different widths

Precision density and viscosity measurement using two cantilevers with different widths

Electromagnetically driven torsional resonators for viscosity and mass density sensing applications

Modeling-free evaluation of resonant liquid sensors for measuring viscosity and density

Contact Info

Product

Resources

About