Abstract
This paper is concerned with a newly developed measurement technique of particle flow-rate in gas-solids pipe flow based on the static electrification of particles. The method is found to be feasible to detect the flow-rate as small as 0.5 g/s for large alumina particles of 0.3mm in mass median diameter. Here we investigated the effect of sensor vibration on the detection sensitivity to get fundamental data for practical applications of the sensor in various particulate processes such as sand blasting. Jet tests with alumina particles were carried out using a vibration exciter under various frequencies and amplitudes. According to the experiments, it was found that the detection sensitivity was increased by the vibration and the sensor could be applied even if the vibration was as large as 30G. It was also found that the resonance of the sensor vibration had no serious effect on the measurement of particle flow-rate.
