Ultrasonic particle sizing in aqueous suspensions of solid particles of unknown density

Al-Lashi, Raied S.; Challis, R.E.

doi:10.1121/1.4927694

Cited by 8 publications

(3 citation statements)

References 14 publications

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“…A recent development in ultrasound technology deploying Golay coded sequences to encode the generated acoustic signal offer promise for the future because the coding involves a continually altering frequency which allows much lower output powers due to improved signal to noise [45].…”

Section: Resultsmentioning

confidence: 99%

Applications of ultrasonics in food science - novel control of fat crystallization and structuring

Povey

2017

Current Opinion in Colloid & Interface Science

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Low power (< 10 W m -2 ) ultrasound spectroscopy has been used for many years for the characterisation of food colloids with respect to particle size distribution, adiabatic compressibility, particle solvation and dissolution, crystal nucleation and solid content. Whilst high power (>1 kW m -2 ) ultrasound methods are well-known to impact on fat crystallization and structuring, they have many drawbacks, causing off-flavours through product oxidation and a metallic taste probably associated with sonotrode wear. Furthermore, process development with power ultrasound is hit and miss, applications being largely empirical and poorly understood. We have recently shown that well-controlled and understood crystal nucleation control can be obtained using well-defined low power, quasi-continuous ultrasound and acoustical pressure fields, opening up a new field of application in food processing for ultrasonics.

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Section: Resultsmentioning

confidence: 99%

Applications of ultrasonics in food science - novel control of fat crystallization and structuring

Povey

2017

Current Opinion in Colloid & Interface Science

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“…For instance, catalytic activity and production efficiency are affected by the distribution of catalyst particles (Carpio et al, 2015), drug delivery and cell uptake are closely related to the particle size of the raw drug (Kulkarni and Feng, 2013), the combustion efficiency of coal-water slurry is greatly affected by the particle size distribution (Blaszczuk et al, 2013), and the prediction of water environment development depends largely on an in-depth understanding of sediment parameters, such as particle size distribution, and so forth (Chalov et al, 2014). However, it is very difficult to measure the particle size distribution in solid-liquid two-phase flow due to its inherent complexity and multiple factors (Al-Lashi and Challis, 2015; Buffo and Alopaeus, 2016). Currently, lots of efforts have been made to measure particle size distribution.…”

Section: Introductionmentioning

confidence: 99%

Application of artificial bee colony algorithm for particle size distribution measurement of suspended sediment based on focused ultrasonic sensor

Yeming

Yidan

Xie

et al. 2021

Transactions of the Institute of Measurement and Control

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A new focused ultrasonic sensor is proposed, based on which the measurement system for particle size distribution measurement of suspended sediment is established. Compared with the traditional ultrasonic sensors, the one used in this paper is equipped with piezoelectric transducer (PZT) on an arc-shaped shell, to concentrate ultrasonic beams on one measurement point. The sensor is used to measure the particle size distribution of suspended sediment. The experiments were carried out on water-sediment mixtures with different particle size distribution. Due to multiple parameters and non-linearity of the ultrasonic attenuation model, the artificial bee colony (ABC) inversion algorithm is used to estimate particle size distribution, thus improving measurement accuracy. The particle sizes obtained by sieving method are seen as reference values. The results indicate that whether the suspended particles are subject to a unimodal distribution, uniform distribution or random distribution, the particle size distribution obtained by ABC inversion algorithm is consistent with the result obtained by the sieve method. The results demonstrate that the method has good utility and accuracy within the low concentration range.

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“…Each method has certain advantages over a specific range, but also possesses notable drawbacks. Among these numerous measurement methods, the most commercially promising techniques include ultrasonic [2,3], optical [4,5], electrostatic [6,7], and capacitance [8] approaches, among others. The ultrasonic method is susceptible to temperature and is regarded as difficult to install.…”

Section: Introductionmentioning

confidence: 99%

Detection of Pneumatic Conveying by Acoustic Emissions

Liu

et al. 2019

Applied Sciences

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The acoustic emission (AE) method is used in certain industries for the measurement of pneumatic conveying. Instead of the non-intrusive sensors, the comparison of two different intrusive probes in pneumatic conveying is presented in this work, and the AE signals generated by the flow for different particle flow rates and particle sizes were studied. Comparing the distribution of root mean square (RMS) values indicates that the AE signal acquired by a wire mesh probe was more reliable than that from a T-type probe. Limited intrinsic mode functions (IMFs) were extracted from the raw signals by the ensemble empirical mode decomposition (EEMD) algorithm. The characteristics of these signals were analyzed in both the time and frequency domains, and the energies of different IMFs were used to predict the particle mass flow rates, demonstrating a relative error under 10% achieved by the proposed monitoring system. Additionally, the mean squared error contribution fraction, instead of the energy fraction, can predict the particle size.

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Ultrasonic particle sizing in aqueous suspensions of solid particles of unknown density

Cited by 8 publications

References 14 publications

Applications of ultrasonics in food science - novel control of fat crystallization and structuring

Applications of ultrasonics in food science - novel control of fat crystallization and structuring

Application of artificial bee colony algorithm for particle size distribution measurement of suspended sediment based on focused ultrasonic sensor

Detection of Pneumatic Conveying by Acoustic Emissions

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