| 摘要 |
In a system for feeding cut rag tobacco the cut rag is fed by a variable-speed conveyor past a mass rate detector such as a dielectric detector or a nucleonic detector, onto a constant speed conveyor. The detector controls the speed of the variable conveyor in a manner calculated to keep the average mass rate constant. The constant speed conveyor delivers over a lip which is angled to the direction of movement by an angle theta , defined by Tan theta =W/D where W is the width of the stream of cut rag and D is the length of the stream over which the average mass rate equals the desired constant mass rate.
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