Ultrasonic attenuation spectroscopy for multivariate statistical process control in nanomaterial processing

Boonkhao, Bundit; Wang, Xue Z.

doi:10.1016/j.partic.2011.11.009

Cited by 11 publications

(3 citation statements)

References 23 publications

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“…The electrical method requires the measured medium to have certain electrical properties, so its application scope is limited (Meng et al, 2010). With the advantages such as strong penetration, not being affected by concentration, no interference to the flow field, and its capacity for continuous on-line measurement, acoustic methods have attracted extensive attention from researchers and have been applied to two-phase flow measurement (Awad et al, 2012;Boonkhao, Wang, 2012;Gu et al, 2018). There are many ultrasonic mea-surement methods, but in most cases, the ultrasonic attenuation method is selected for measuring two-phase flow (Dong et al, 2020;Tsuji et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Archives of Acoustics

2022

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The two-dimensional distribution of gas-solid flow parameters is a great research significance to reflect the actual situation in industry. The commonly used method is the ultrasonic tomography method, in which multiple probes are arranged at various angles, or the measurement device is rotated as that in medicine, but in most industrial situations, it is impossible to install probes at all angles or rotate the measured pipe. The backscattering method, however, uses only one transducer to both transmit and receive signals, and the twodimensional information is obtained by only rotating the transducer. Ultrasound attenuates greatly in the air, and the attenuation changes with frequency. Therefore, COMSOL is used to study the reflection of particles with different radii in the air to ultrasound with various frequencies. It is found that the backscattering equivalent voltage is the largest when the product of ultrasonic frequency and particle radius is about 27.78 Hz ⋅ m, and the particle concentration of 30% causes the strongest backscattering. The simulated results are in good agreement with the Faran backscattering model, which can provide references for selecting the appropriate frequency and obtaining the concentration when measuring gas-solid two-phase flow with the ultrasonic backscattering method.

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Section: Introductionmentioning

confidence: 99%

Archives of Acoustics

2022

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“…Furthermore, a modification (Liu L., 2009) was presented that in ultrasound particle sizing, factor analysis as a method of dealing with multivariate data can be applied to ultrasound spectra to extract the information of linear dependence of attenuation on concentration and the contribution of frequency to attenuation. On the basis of this work a closed-loop control system was further built to measure and control process parameters (Boonkhao B. and Wang X.Z., 2012).…”

Section: Introductionsmentioning

confidence: 99%

Advances in Nanoparticle Sizing in Suspensions: Dynamic Light Scattering and Ultrasonic Attenuation Spectroscopy

Zhou

Cai

2017

KONA

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Size characterization of nanoparticles has gained wide concerns in the past decades, but it remains a challenge for measurement in suspensions up to now. The extremely small scales of particle size result in great difficulty for traditional static light scattering method and optical imaging. In addition to the electron microscopy techniques, the dynamic light scattering (DLS) method is another widely used technique for laboratory analysis of samples. Moreover, the ultrasonic attenuation spectroscopy (UAS) technique is also being developed rapidly to provide an alternative method for nanoparticle sizing. This paper focuses on the latest development in the above two technologies for nanoparticle size characterization. As for the former, advances about the image-based DLS technology in recent years are reviewed, including three different kinds of data processing methods and corresponding measuring experiments using standard polystyrene particles. Methodology principles, models and experimental setup were also reviewed for the latter UAS technology. Samples of the same nanoscale silver particles were tested by the above two methods, as well as by transmission electron microscopy. A sample of Antimony Tin Oxide (ATO) nanoparticles has also been adopted for measurements and comparisons. Relatively consistent results can be found by comparing the particle sizes or distributions with various methods. The dramatically reduced measurement time in image-based DLS indicates the potential for real-time and in-situ nanoparticle sizing. UAS also provides a suitable way for nanoparticle size characterization at high concentrations.

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“…[1][2][3][4] High resolution ultrasonic spectroscopy is a novel analytical technique with strong potential for analyzing a wide range of samples and molecular processes. This technique is based on precise measurements of the parameters of ultrasonic waves propagating through the samples.…”

Section: ⅰ Introductionmentioning

confidence: 99%

Monitoring Oxidation Behavior of [C₇₀]Fullerene by Ultrasonic Spectroscopy

Ko¹

2014

Elastomers and Composites

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Ultrasonic attenuation spectroscopy for multivariate statistical process control in nanomaterial processing

Cited by 11 publications

References 23 publications

Archives of Acoustics

Archives of Acoustics

Advances in Nanoparticle Sizing in Suspensions: Dynamic Light Scattering and Ultrasonic Attenuation Spectroscopy

Monitoring Oxidation Behavior of [C₇₀]Fullerene by Ultrasonic Spectroscopy

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Ultrasonic attenuation spectroscopy for multivariate statistical process control in nanomaterial processing

Cited by 11 publications

References 23 publications

Archives of Acoustics

Archives of Acoustics

Advances in Nanoparticle Sizing in Suspensions: Dynamic Light Scattering and Ultrasonic Attenuation Spectroscopy

Monitoring Oxidation Behavior of [C70]Fullerene by Ultrasonic Spectroscopy

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Monitoring Oxidation Behavior of [C₇₀]Fullerene by Ultrasonic Spectroscopy