Dust particle size distribution change measurement - using triboelectric sensor in measuring duct, pref. wind tunnel

摘要

In a pref. arrangement, two triboelectric sensors are arranged in a pattern to suit the spatial particle size differentiation of the powder moving through the wind tunnel. To differentiate between certain fractions, a dust separating cyclone can be inserted and the size distribution measured by triboelectric sensors upstream and downstream of it. This system can be used under industrial conditions and yields results of adequate accuracy. No additional signal transmitter is required.