electrostatic sensor particle velocity

Applications of Electrostatic Sensor for Wear Debris ...

Oct 02, 2013 · Electrostatic monitoring method as an advanced on-line monitoring method is applied to monitor the wear debris. Electrostatic sensor is the key component in the monitoring system. In this paper, (1) The finite element method was employed to analyze the sensitivity distribution and to optimize the structure parameter of the electrostatic sensor. (2)

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The spatial filtering method of particle velocity ...

02-07-2019 · An electrostatic sensor is a powerful tool for measuring flow parameters of gas-solid 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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Numerical study of electrostatic electron cyclotron ...

Nov 30, 2007 ·  · Excitation of electrostatic electron cyclotron harmonic (ECH) waves is studied by performing linear dispersion analysis and particle-in-cell computer simulation. The ECH wave emissions can be excited by a positive slope in a velocity distribution function perpendicular to the ambient magnetic field, such as that due to a loss cone or ring velocity distribution.

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The spatial filtering method of particle velocity ...

02-07-2019 · An electrostatic sensor is a powerful tool for measuring flow parameters of gas-solid 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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The spatial filtering method of particle velocity ...

An electrostatic sensor is a powerful tool for measuring flow parameters of gas-solid 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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Electrostatic sensors – Their principles and applications ...

Feb 01, 2021 · Electrostatic sensor based dust monitors have been successfully deployed to detect low particulate emissions (in the order of 1 mg/m 3) after dust filtration systems in some industrial sectors . Since the velocity of particulates is also a key factor that adversely affects the mass concentration measurement, the dust monitors are optimised to minimise the influence of the velocity of particulates …

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Микроволновые системы SINEO

Датчик контроля температуры внутри сосуда - гибкий, прочный датчик, измеряющий температуру до 250 °С и полностью инертный по отношению ко всем агрессивным реагентам.

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The spatial filtering method of particle velocity ...

An electrostatic sensor is a powerful tool for measuring flow parameters of gas-solid 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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Particle velocity measurement method of dense-phase gas ...

Feb 08, 2019 · Therefore, the sensitivity distribution of the electrostatic sensor has a great effect on velocity measurement. According to equation , k and g 0 must be determined to obtain particle velocity. k can be determined by the calibration tests, and g 0 is closely related to the sensitivity distribution of the electrostatic sensor. In order to improve the feasibility and applicability of the spatial filtering method, a velocity …

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Electrostatic Sensor for Determining the Characteristics ...

04-10-2019 · 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 4-arc electrode electrostatic sensor, with localised ...

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(DOC) particle flow monitor using electrostatic sensors ...

And then using the velocity values, the mass emission from the stacks can be mathematically calculated using the following equation [6]: q m=3.6 A v β m (eq 1) Where, qm = mass emission (g/hour) Page | 4 A = cross-sectional area of the duct ( m2 ) V = velocity of the particles (m/s) βm = mass concentration of the particles ( mg/m3 ) The technique of using electrostatic sensor to monitor the ...

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Effects of Pressure, Temperature, and Gas Velocity on ...

Sep 17, 2008 · The maximum static charges were found at approximately two-thirds of the bed height and near the axis. As the pressure increased, particle−particle and particle−wall collisions near the distributor and wall contributed heavily to static charge generation. At higher temperatures (up to 75 °C), the bed exhibited smoother fluidization.

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SWEAP Instruments – The Solar Wind Electrons Alphas and ...

SWEAP consists of four separate sensors that measure the ions and electrons that make up the plasma in the solar wind and solar corona. The Solar Probe ANalyzer (SPAN) instruments are electrostatic analyzers (ESAs) that use curved plates to measure the 3-D particle distribution from within the shadow cast by the spacecraft thermal shield. Two of the sensors are co-located on the ram side of ...

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A Numerical Investigation of the Effect of Dust Layer on ...

Jan 01, 2020 · Deutsch efficiency equation can be used to calculate particle average migration velocity, and particle collection efficiency η can be converted to the following equation: Particle average migration velocity w p can be calculated as follows: where A is the area of the collection plate in ESP [m 2], and Q is the gas flow in ESP [m 3 s –1].

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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 gas-solid 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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Particle velocity measurement of binary mixtures in the ...

20-04-2020 · Electrostatic sensing. Charges are induced on the electrostatic electrodes when charged particles pass the nearby region. Because of the virtual earth on the signal conditioning circuit, there is an induced current on the electrodes (Zhang et al. 2013).The current signal from the sensor is transformed, filtered and amplified by using a signal conditioning circuit, as details given in reference ...

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