| 摘要 |
A flow meter (100) for determining the flow rate or mass of a moving stream of fine particles (P) comprises a guide (102) for guiding the material along a predetermined path having an entry end (106) and an exit end (108). A transducer (200) is operatively associated with one end of the guide and includes a mechanical column connected between a load cell and the exit end of the guide. The load cell produces an electrical output signal proportional to the flowe rate of the material on the guide. A vibrator for vibrating the guide is provided and serves to keep the flow stream moving and wherein the plane of vibration is perpendicular to the plane of measurement, thus eliminating measurement error due to the vibrational forces.
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