| 摘要 |
<p>It is provided a powder flow-rate measuring apparatus wherein a conveying fluid is blown into the inlet (8) of a detecting pipe line (1) with a nozzle (3). a powder in fluidized state is introduced into said inlet (8), and the generated pressure difference due to acceleration of powder in the detecting pipe line (1) is detected by means of a differential pressure gauge (26) which communicates with an inlet side pressure detecting port (6) arranged upstream the outlet of said nozzle (3) and an outlet side pressure detecting port arranged at the outlet (9) of detecting pipe line (1). The apparatus has characteristics stable for long period of time and is operable in a wide measuring range.</p> |
