a k u00f6rnerstromsensoranordnung for a combine harvester (10), a erntegutbearbeitungseinrichtung includes, in erntebetrieb a free flying stream of grain issue is a prallfl u00e4che (66)a schwingungssensor (74) for the detection of the prallfl u00e4che (66) aufprallender grains and to divert of granules on the prallfl u00e4che (66) arranged ablenkelement (64) oversight. the ablenkelement (64) is arranged within the flow of grains and the grains on the prallfl u00e4che has one (66) reflecting and concentrating concave shape.
