electrostatic sensor particle velocity

Optimization of electrostatic sensor electrodes using ...

Jul 14, 2016· Xu C, Tang G, Zhou B, Wang S (2009) The spatial filtering method for solid particle velocity measurement based on an electrostatic sensor. Meas Sci Technol 20(4):045404. Article Google Scholar 8. Krabicka J, Yan Y Finite element modelling of intrusive electrostatic sensors for the measurement of pulverised fuel flows.

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Electrostatic Sensor for Determining the Characteristics ...

Oct 04, 2019· Abstract: The minimum conveying velocity or the lowest point of pressure drop curve can reflect the characteristics of particles moving from deposition to suspension in pneumatic conveying. However, when the mass flow rate is low, the change of particles flow cannot be effectively reflected by the above methods. In this paper, based on a 4arc electrode electrostatic sensor…

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The spatial filtering method of particle velocity ...

Jul 02, 2019· An electrostatic sensor is a powerful tool for measuring flow parameters of gassolid flow. In this study, a linear electrostatic sensor matrix (LESM) is designed to measure local particle average velocity within pipeline. The 3D simulation model of the LESM is built, and its spatial filtering effect is analyzed by the finite element method.

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ATS6 UCSD auroral particles experiment NASA Technical ...

The inside of the plates is serrated to eliminate particles striking the sides. A postanalysis electrostatic lens consisting of two wire grids, one at the potential of the inner plate and one at the potential of ground, focuses particles strongly upon the center of the sensor. A spiraltron particle sensor detects the charged particles.

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FiniteElement Modeling of Electrostatic Sensors for the ...

Apr 24, 2009· Abstract: Electrostatic sensors are used in certain industries for the flow measurement of pneumatically conveyed solids. However, despite various advances that have been made in recent years, relatively little information is known about the exact nature of the electrostatic charge induced onto the sensor electrode due to moving particles, which is dependent on electrode geometry, particle ...

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Spatial Selectivity of Linear Electrostatic Sensor Arrays ...

Sep 04, 2012· Abstract: The signal quality and accuracy of the spatial filtering method for solid particle velocity measurement based on a linear electrostatic sensor array (LESA) are dependent on the spatial filtering characteristics of the LESA and particle distribution in a pneumatic conveying pipeline. In this paper, the charge induced on a circular LESA with different geometric sizes from a single ...

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The spatial filtering method of particle velocity ...

An electrostatic sensor is a powerful tool for measuring flow parameters of gassolid flow. In this study, a linear electrostatic sensor matrix (LESM) is designed to measure local particle average velocity within pipeline. The 3D simulation model of the LESM is built, and its spatial filtering effect is analyzed by the finite element method.

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filter, and the radial position, the axial length of the electrode, particle velocity and particle size have important effects on the temporal frequency characteristics of the measurement system. Comment: Different sizes of particles will induces different charge. 3 Characterization of electrostatic sensors …

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Velocity measurement of pneumatically conveyed solid ...

The paper proposes a method to measure the mean velocity of solid particles based on the spatial filtering effect of the electrostatic sensor. To determine the relationship between the spatial frequency characteristics of the sensor and solid particle velocity, a general formula is derived by analyzing quantitatively the spatial filtering characteristics of the electrostatic sensor along with ...

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OPTIMIZATION OF ELECTROSTATIC SENSOR FOR VELOCITY ...

Electrostatic Sensor 40 Solids Particle Velocity Measurement using Electrostatic Sensor 45 Doppler Method to Measure the Velocity 46 Cross Correlation Method to Measure the Velocity 49 Spatial Filtering Method to Measure the Velocity 53 Optimization of Electrostatic Sensor 54 Particle Swarm Optimization Technique 55

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Velocity Measurement of Pneumatically Conveyed Particles ...

Feb 18, 2010· Abstract: This paper reports recent developments of electrostatic sensors for the continuous velocity measurement of particles in pneumatic conveying pipelines. The optimization of intrusive electrostatic sensors is investigated through finiteelement modeling and experimental evaluation. The effects of electrode dimensions and intrusion depth on sensor signals and correlationbased velocity ...

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Spatial filtering characteristics of electrostatic sensor ...

The accuracy of local particle mean velocity measurement with spatial filtering method based on an electrostatic sensor matrix (ESM) is closely related to its sensitivity and spatial filtering characteristics. In this paper, the threedimensional electrostatic field generated by a point charge in the sensing zone of the ESM is solved by using a finite element method to obtain the spatial ...

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