Development of a multiple-scattering acoustic sensor for process monitoring: Application to monitoring milk coagulation

Sotelo, Rafael; Pérez, Nicolás; Budelli, Eliana; Lema, Patricia; Ing, Ros Kiri; Negreira, Carlos

doi:10.1109/i2mtc.2017.7969965

Cited by 5 publications

(4 citation statements)

References 8 publications

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“…The technique was also used for measuring the concentration of yeasts in suspensions, showing better sensitivity than spectrophotometric techniques [ 32 ]. A multiple-backscattering measurement sensor in the configuration used herein was used to monitor milk coagulation [ 33 ] and to characterize water-in-hydraulic-oil emulsions [ 34 ].…”

Section: Introductionmentioning

confidence: 99%

Water Content Monitoring in Water-in-Crude-Oil Emulsions Using an Ultrasonic Multiple-Backscattering Sensor

Duran

Franco

Reyna

et al. 2021

Sensors

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This work shows the application of an ultrasonic multiple-scattering sensor for monitoring water-in-petroleum emulsions. The sensor consists of a commercial ultrasonic transducer with an array of cylindrical scatterers placed in the near field. The scatterers are thin metal bars arranged in rows in front of the transducer. The backscattering signals were analyzed by calculating the wave energy and by a cross-correlation between signal segments; they were also used to determine the propagation velocity in the emulsions. The tests performed used emulsions with water volume concentrations from 0 to 50%. The results showed that both the signal energy and propagation velocity strongly depended on the concentration of water in the emulsion. Therefore, the ultrasonic multiple-scattering sensor can be used for on-line and real-time monitoring of the water content in water-in-crude-oil emulsions.

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Section: Introductionmentioning

confidence: 99%

Water Content Monitoring in Water-in-Crude-Oil Emulsions Using an Ultrasonic Multiple-Backscattering Sensor

Duran

Franco

Reyna

et al. 2021

Sensors

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“…They note that the use of the correlation method improves the accuracy of flow measurement in turbulent flow media. The authors subjected ultrasonic reflections from steel rods to correlation at specific times to which they were exposed to external heat [5]. The method is used in monitoring temperature characteristics in food production.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Ultrasound Signal on Reflection from a Sharp Corner Surface: Study of Selected Characteristics Deriving from Regression by Transfer Function

2022

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This article deals with the regression analysis of the ultrasonic signal amplitude when the character of the reflection surface has been changed from a planar case to a sharp corner case. The experiment was performed at a measurement distance within the interval from 100 mm to 215 mm. A nonlinear correlation between the amplitude of the ultrasound signal and the measured distance was demonstrated. By analyzing the frequency spectra, a poor nonlinear correlation between the maximum frequency component and the distance vector was found for the sharp corner case versus the planar case, which proved similar nonlinear characteristics as the signal amplitude marker. The strong linear correlation in the distance difference vectors in the amplitude analysis of the ultrasound signal confirmed the hypothesis of a direct relationship between the reflection surface geometric characteristic and the polarity of the difference. The ultrasound signal was identified as a 3rd-order dynamic system. The nonlinear correlation of the steady-state values of the modelled transfer functions versus distance likewise shows the characteristic of the polarity difference or character derivative as a quantification marker of the characteristics of the reflection surface from the geometric point of view.

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“…Due to the great demand for techniques to determine the composition of emulsions in the food industry, (HIGUTI et al, 1999) Finally, water-in-crude oil emulsions have been studied using some ultrasonic techniques (ALSHAAFI, 2017;FRANCO et al, 2022). Furthermore, (DUR ÁN et al, 2021) used a backscattering cell with an arbitrary distribution of scatterers to characterize water-in-crude oil emulsions, which is based in a backscattering device used to characterize milk coagulation processes (BLASINA et al, 2017) and composition of water-in-engine oil emulsions (PEREZ et al, 2019). The most relevant advantages of ultrasonic techniques are their robustness, versatility, low cost and the possibility of online and real-time operation, compared to conventional techniques currently used to quantify the amount of water in water-in-crude oil emulsions, (ASTM D4928-12(2018)) and (SCH ÖFFSKI;STROHM, 2006).…”

Section: Literature Reviewmentioning

confidence: 99%

“…This type of sensor has a couple of rows of scatterers placed in the near field of commercial piezoceramic transducer of 3.5 MHz. Like the prototypes used in (BLASINA et al, 2017;PEREZ et al, 2019), even though the scatterers have a regular distributions, their distribution is arbitrary or unknown (DERODE; TOURIN; FINK, 2001). For determining the propagation velocity and the acoustic energy using this sensor, Durán et.…”

Section: Ultrasonic Backscattering Phenomenonmentioning

confidence: 99%

Determinação de teor de água em emulsões de água em petróleo usando técnicas ultrassônicas.

Burbano Reyna

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Piezoelectric ultrasonic sensors have been developed for the characterization of solid and fluid samples. However, the characterization of fluids with high opacity, such as waterin-crude oil emulsions, has much to be improved. This work develops a set of sensors, capable of being installed in several stages of petrochemical processes. The first one, a pulse-echo-transmission probe working at 3.5 MHz, measures the propagation velocity. The second one, a delay line cell operating at 5 MHz, measures the propagation velocity and the attenuation. The third one, a backscattering ultrasonic cell, was used to study ways of maximizing sensitivity, using a deterministic model to find the best distribution of the passive components. Due to the high acoustic attenuation in water-in-crude oil emulsions, the backscattering cell designed in this work was used in an attempt to quantify the oil content in crude oil-in-water emulsions, which have lower attenuation. Taking into account the temperature effect, the first two prototypes manufactured in this work were able to measure the content of water in water-in-crude oil emulsions up to 40% in volume with a sensitivity up to 1.2 m/s per each degree variation in the concentration. For the delay line cell, this result was achieved even with flowing samples. Even though the third prototype (backscattering cell) was not capable of detecting the crude oil content in a range of the parts per million (ppm) in crude-in-water emulsions, it was developed a design criterion for this sort of technology based on the scattering model. The information provided by the pulse-echo/transmission probe and by the delay line cell can be used to optimize the water separation in the first stages of petrochemical processes. This implies a significant reduction in the emission of pollutants that cause the greenhouse effect during the production of crude oil-based materials.

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Development of a multiple-scattering acoustic sensor for process monitoring: Application to monitoring milk coagulation

Cited by 5 publications

References 8 publications

Water Content Monitoring in Water-in-Crude-Oil Emulsions Using an Ultrasonic Multiple-Backscattering Sensor

Water Content Monitoring in Water-in-Crude-Oil Emulsions Using an Ultrasonic Multiple-Backscattering Sensor

Analysis of Ultrasound Signal on Reflection from a Sharp Corner Surface: Study of Selected Characteristics Deriving from Regression by Transfer Function

Determinação de teor de água em emulsões de água em petróleo usando técnicas ultrassônicas.

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