(1)It can detect the actual filling rate indicators at real-time during the whole powder feeding process. Automatic detection and powder-feeding measuring relative error precision≤±2.9%, absolute error≤±0.4 (When filling rate is 15%, general value ≤±0.3, when filling rate is 48%, general value ≤±1.39).

(2)Filling rate detection precision adjusting scope: any data less than 50%, precision: a±a×2.9%,98% detection point in the range.