A new method to determine conductivity distribution based on wire-mesh sensor by iteration

Zhang, Hengwei; Xiao, Yao; Gu, Hanyang

doi:10.1016/j.anucene.2020.107443

Cited by 10 publications

(2 citation statements)

References 14 publications

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“…In this study, the 10 × 10 wire-mesh sensor is used in a horizontal pipe with an inner diameter of 20 mm, which has a higher spatial resolution of 2 mm. In addition, the axial spacing of the two wire planes are generally less than or equal to the spatial resolution [29]. It can be explained as follows.…”

Section: Wire-mesh Sensor Systemmentioning

confidence: 99%

Measurement of Interfacial Characteristics of Horizontal and Inclined Oil–Water Flows by Using Wire-Mesh Sensor

et al. 2022

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Oil–water flows are widely encountered in petroleum, chemical, nuclear reactors, and other crucial industrial processes. Due to gravity and interaction between phases, horizontal and inclined oil–water two-phase flows are characterized by remarkable multi-scale structure characteristics, such as large-scale stratified interface and small-scale droplets entrainment. Moreover, a slight change in the pipe inclination will lead to significant changes in the local oil–water flow structures, which results in great challenges in the measurement of the interface structures. In this study, we design a 10 × 10 conductance wire-mesh sensor (WMS) to detect the interfacial characteristics of horizontal and inclined oil–water flows. Firstly, we carry out horizontal and inclined oil–water flow experiments. The influence of pipe inclinations on the flow transition boundary is analyzed. The three-dimensional (3D) structures of oil–water flows are visualized based on the WMS measurement response. Then, edge detection is implemented to process the two-dimensional (2D) flow images visualized by the WMS. The influence of complexly distributed droplets is effectively removed by using binary image morphological transformation and watershed algorithm, and thus, oil–water interface structures are accurately extracted. Finally, the influence of the oil–water flow conditions and pipe inclinations on the configuration, height, and length of the stratified interface are investigated.

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Section: Wire-mesh Sensor Systemmentioning

confidence: 99%

Measurement of Interfacial Characteristics of Horizontal and Inclined Oil–Water Flows by Using Wire-Mesh Sensor

et al. 2022

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“…According to them, the assumption of a uniformly sensitive volume is one of the causes of systematic error in the WMS measurement. In another work, Zhang et al [42] presented an iterative method based on potential field simulation to correct the phase fraction. With this algorithm, they could reduce the local conductivity deviation from 30% to 3%.…”

Section: Introductionmentioning

confidence: 99%

Combined Finite Element and Electronic Circuit Model of a Wire-Mesh Sensor

et al. 2021

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A new wire-mesh sensor model based on electric field and circuit simulations is presented. In our approach, the excitation and amplification stages of the capacitance WMS are created as macromodels and coupled to the electrodes of a 3D geometry of the sensor. Thus, the effects caused by nonideal characteristics of the amplifiers are considered (e.g. finite open-loop gain and bandwidth). In order to evaluate the performance of the model, a static validation based on phantom measurement was performed. The phantoms were created with paraffin to emulate typical flow regimes, i.e. annular, slug and bubble flow. A mapping containing the position and the electrical properties of the patterns was obtained by image processing and incorporated to the field simulation. Hence the numerical simulations could be directly compared to the experimental data. The results show that coupling the external circuits to the capacitance WMS model is crucial to provide reliable synthetic data.

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Numerical analysis and structural optimization of a DLC coated capacitance wire-mesh sensor for measuring liquid metal-gas two-phase distribution

Bao,

Liu,

Liu

et al. 2024

Annals of Nuclear Energy

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A new method to determine conductivity distribution based on wire-mesh sensor by iteration

Cited by 10 publications

References 14 publications

Measurement of Interfacial Characteristics of Horizontal and Inclined Oil–Water Flows by Using Wire-Mesh Sensor

Measurement of Interfacial Characteristics of Horizontal and Inclined Oil–Water Flows by Using Wire-Mesh Sensor

Combined Finite Element and Electronic Circuit Model of a Wire-Mesh Sensor

Numerical analysis and structural optimization of a DLC coated capacitance wire-mesh sensor for measuring liquid metal-gas two-phase distribution

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