METHOD AND DEVICE FOR MEASURING ATMOSPHERE CONCENTRATION OF WIND - DUSTED SUSPENSION DUST FROM TASTING PULVERULENT MATERIALS.

摘要

P This device comprises a sampling chain equipped with a measuring means (1) of the speed (v) of the wind, a sensor (2) of a sample volume of the air disposed in the immediate vicinity of the means for measuring wind speed, a suction unit (5) connected to the sensor (2) and provided with means (9, 12) for controlling the capture flow rate at the wind speed measured by said measuring means (1), the sensor (2) comprising a sampling member (3) of the air and a filter (4) for filtering and storing the dust of the sampled air sample volume. / P