Downhole viscosity measurement platform using tuning fork oscillators

González, Miguel; Ham, Gregory; Haddad, Al; Bernero, Greg; Deffenbaugh, Max

doi:10.1109/icsens.2015.7370266

Cited by 19 publications

(8 citation statements)

References 3 publications

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“…Frequency-density fitting equation ( 19) is used to compensate the viscosity through the sensor's measurement results and the actual density of the liquid in the above different viscosity and different density range, in order to obtain the density calculation model suitable for liquids with different viscosity. González et al [12] proposed that the relationship between tuning fork resonance frequency and liquid viscosity can be equivalent to…”

Section: Effect Of Viscosity On Measurement Resultsmentioning

confidence: 99%

“…In addition, it can also increase the frequency of the tuning fork by reducing the length of the tuning fork beams and increasing the thickness of the tuning fork beams [10,11]. On this basis, González et al designed a small rectangular crosssection tuning fork density sensor [12]; compared with the traditional tuning fork density sensor, the tuning fork density sensor has a high resonance frequency and high measurement accuracy in low-viscosity liquids. However, the sensor is not suitable for use in high-viscosity liquids, and the measurement error of tuning fork resonance frequency increases due to the influence of liquid viscosity.…”

Section: Introductionmentioning

confidence: 99%

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Research on Tuning Fork Dimension Optimization and Density Calculation Model Based on Viscosity Compensation for Tuning Fork Density Sensor

Yang

Rao

et al. 2020

Mathematical Problems in Engineering

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At present, real-time online measurement of fluid density is of great significance to improve the automation level of petrochemical and food industries. The tuning fork density sensor is widely used because of its characteristics of real-time online measurement, high measurement accuracy, simple structure, and convenient use. The traditional tuning fork density sensor in the market has the disadvantage of low resolution and being susceptible to liquid viscosity, which makes the sensor’s measurement accuracy low and not suitable for the measurement of high-viscosity liquid density. The measurement resolution and antiviscosity interference capability of the tuning fork density sensor are two major indexes to measure the measurement performance of the sensor, among the antiviscosity interference capability refers to the degree to which the measurement results of the sensor are affected by viscosity properties. However, the structural design of the tuning fork density sensor results in the conflict between the measurement resolution and the antiviscosity interference capability of the sensor, and the improvement of one performance is bound to affect the performance of the other. Aiming at the problem of how to balance the measuring performance of the tuning fork sensor, a density calculation model based on viscosity compensation is proposed in this paper. By studying the working principle and structure design of the tuning fork, the vibration characteristics of tuning fork in liquid with different viscosities and densities are modelled and simulated. From the results of simulation analysis, the better set of dimensions with balanced measuring performance is selected. Not only does the structure of the tuning fork have the characteristics of high resonance frequency, but also the measured results are less affected by the viscosity of the liquid. To solve the problem that density measurement is still affected by high-viscosity liquid after tuning fork dimension optimization, in this paper, the partial least square model is used to fit the experimental data of the frequency-density characteristics; then, the density calculation model based on the viscosity compensation is obtained by combining the frequency-viscosity characteristic experiment. Finally, through the performance test experiment comparing with the traditional tuning fork density sensor, the measurement resolution of the improved tuning fork density sensor is as high as 0.0001 g/cm3; within the viscosity range of 180 MPa·s, the accuracy reached ±0.001 g/cm3, and within 480 MPa·s, the measurement accuracy reached ±0.002 g/cm3. When the liquid viscosity reaches more than 10 MPa·s, the improved tuning fork density sensor has better overall measurement performance than the traditional tuning fork density sensor, and both of its measurement resolution and antiviscosity interference capability have been greatly improved.

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Section: Effect Of Viscosity On Measurement Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Research on Tuning Fork Dimension Optimization and Density Calculation Model Based on Viscosity Compensation for Tuning Fork Density Sensor

Yang

Rao

et al. 2020

Mathematical Problems in Engineering

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“…That sensor can resolve the viscosity at a downhole location in the ranges from 0.2 mPas to 300 mPas with uncertainties stated in the range of 10 %. Another device for downhole viscosity measurements which operates autonomously without wire-line connection is proposed by a tuning fork device [23]. Gonzalez et al present two further fluid viscosity and density measurement platforms for downhole applications [24].…”

Section: Introductionmentioning

confidence: 99%

Distributed viscosity and flow velocity measurements using a fiber-optic shear stress sensor

Lipus

Kranz²,

Reinsch³

et al. 2022

Sensors and Actuators A: Physical

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“…Waszczuk et al [17] adopted the low frequency commercial piezoelectric tuning forks (QTFs) to the measurement of physicochemical properties of liquids, and the result showed that the applied measurement technique based on the analysis of the QTF equivalent electric circuit proved its usefulness for determining liquid viscosity in the range up to 16 cP. Gonzalez et al [18] researched a novel sensor system for downhole measurements of viscosity, density, and other fluid properties. Gonzalez et al [19] demonstrated the use of a tuning fork sensor for fast viscosity and density measurements that would enable the characterization of transient fluid properties, such as in multiphase flows of liquids.…”

Section: Introductionmentioning

confidence: 99%

Research on Testing Method of Oil Characteristic Based on Quartz Tuning Fork Sensor

2021

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There is increasing demand for the on-board diagnosis of lubricating oils. In this research, we consider various sensor principles for on-board diagnosis of the thermal aging of engine oils. One of the parameters investigated is the viscosity of the lubricating oil, which can be efficiently measured using a microacoustic sensor. Compared with conventional viscometers, these sensors probe a different rheological domain, which needs to be considered in the interpretation of measurement results. This specific behavior is examined by systematically investigating engine oils, with and without additive packages, that were subjected to a defined artificial aging process. This paper presents design strategies for the algorithm developed and applied for direct on-board diagnosis of engine oil conditions with a fluid property sensor; this enables prediction of remaining oil life and optimization of oil change intervals, thereby minimizing the likelihood of dramatic engine failure and reducing maintenance costs. After a general description of the principles of sensor measurement, different engine oil contaminants, aging phenomena, and associated sensor detection and measurement capabilities are discussed.

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Downhole viscosity measurement platform using tuning fork oscillators

Cited by 19 publications

References 3 publications

Research on Tuning Fork Dimension Optimization and Density Calculation Model Based on Viscosity Compensation for Tuning Fork Density Sensor

Research on Tuning Fork Dimension Optimization and Density Calculation Model Based on Viscosity Compensation for Tuning Fork Density Sensor

Distributed viscosity and flow velocity measurements using a fiber-optic shear stress sensor

Research on Testing Method of Oil Characteristic Based on Quartz Tuning Fork Sensor

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