CHARGE QUANTITY MEASURING APPARATUS AND CHARGE QUANTITY MEASURING METHOD USING THE SAME

摘要

PROBLEM TO BE SOLVED: To accurately measure a charge quantity of mixed powder and that of two types of powder mixed as the mixed powder.SOLUTION: A charge quantity measuring apparatus 1 measures a charge quantity of powder received on a powder receiving plate 3 by a second measurement device 6. The powder received on the powder receiving plate 3 can be sucked by a Faraday cage 14 and a filter 4 is arranged between the powder receiving plate 3 and the Faraday cage 14. The filter 4 is coupled with a coupling member 21 of a filter elevation member 7. The coupling member 21 is grounded and insulated from the filter 4.