Flow rate meter for powdery material - uses impact plate monitored by strain gauges

摘要

Measurement of the flow rate of a prulverulant or granular material is performed by electronic monitoring of the force acting upon an impact plate in the output conduit of a dispenser. A hopper (1) dispenses the material along an output route (V). The output route comprises a right bend in the corner of which is disposed an impact plate (6) defining the outside force of the bend. Horizontal and vertical forces (Fh) and (Fv) acting on the plate are monitored by strain gauges from which a result force (R) is derived for direct commutations into a flow rate parameter.