Rectangular electrode characteristic in electrodynamic solid particle measurement

Ghazali, Mohd Riduwan; Ibrahim, W. I.; Ghani, S.A.; Rahmat, M. F.

doi:10.1109/icedsa.2011.5959051

Cited by 1 publication

(1 citation statement)

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“…Over the past decades, a large number of flow velocity meters have been introduced to meet the needs of industrial production. Generally, the existing flow velocity meters are achieved through three methods: (i) cross correlation method (Wang et al, 2013; Zhang, 2008), which can be realized with capacitive sensors, electrodynamic sensors (Ghazali et al, 2001), acoustic sensor (Gratiot et al, 2000; Thorne and Hanes, 2002), optical sensors (Malara et al, 2017) radiometric sensors (Zubkov and Kuba, 2005) or capacitive sensors (Fuchs and Zang, 2006); (ii) spatial filtering method (Hrachet et al, 2008; Penirschke and Jakoby, 2008; Wu and Zhang, 2007; Xu et al, 2007), which can be realized with capacitive sensors, optical sensors and (iii) laser Doppler method. Among them, the cross correlation method has a poor spatial sensitivity with restricted signal processing, while the spatial filtering method is very complex.…”

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confidence: 99%

Real-time solid flow velocity measurement based on a microwave sensor

Zou

Wang

Liu

et al. 2018

Transactions of the Institute of Measurement and Control

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Measurement and control of bulk solid flows become increasingly important in industries, such as large-scale production, coal transportation and food processing, although rapid and accurate velocity measurement is still a challenging task in these applications. This paper presents a new velocity measurement method based on a microwave sensor operated at 10.525 GHz and investigates the factors that affect velocity of bulk solid flows and the velocity of the solid particles in order to quantify the flow and improve the efficiency of transportation. In this method, a microwave Doppler Signal Analyser is adopted to calculate the average velocity of bulk solid flows and obtain the instantaneous velocity of a single solid flow. The influence of air friction, pipe collision and particle interactions is also analysed with experiments. The measurement results show that the average velocities of bulk solid flows range from 0.6 to 1.6 m/s, and the interaction between solids play a major effect on solid movements. The effect of pipe wall friction should also be considered. Besides, the mass flow rate and the total mass of bulk solid flow can be calculated. The mass flow rate ranges from 0 kg/s to 0.21 kg/s in the entire experiment.

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