A bubble detection technique based on light intensity and Mie scattering theory for spinning solution

Inversion of particle size distribution based on iterative non-negative Philips-Twomey algorithm

“…Since the inversion accuracy of the iterative algorithm is greatly affected by the initial value, the inversion result of NNPT algorithm can be used as the initial value of the iteration. In this paper, the RMS error (Zhan et al, 2013) is used to evaluate the quality of PSD curve reconstruction. The formula of RMS can be expressed as…”

Simulation of light scattering on a deformed gas bubble

“…Moreover, the smaller the bubbles, the larger the interfacial surface that cleans the liquid from impurities [5], [6], [7], [8]. To study the factors influencing the size of gas bubbles suspended in a liquid, a system for measuring this size is needed, for example, based on the principle of light scattering in a two-phase liquid [9], [10], [11], [12]. Optical examination of a two-phase liquid is the least invasive, since light makes minimal changes to the medium being examined.…”

“…When a large bubble breaks into smaller ones, deformations occur on its surface. For non-invasive measurement of deformations, it is necessary to modify existing methods for measuring the parameters of the dispersed phase in a continuous medium [10,11]. To modify measurement methods, theoretical studies of the scattering of an electromagnetic field on a deformed dispersed inclusion (in this case, a bubble) are necessary, which are described below.…”