Flow measurement

摘要

The invention discloses an undershot gate system to control flow of liquid through an open channel or pipe (14). The system includes a gate leaf (16) adapted to be raised and lowered by a control means to allow flow of liquid along the open channel or pipe (14). The gate leaf (16) has a flow diverter (36) at an end of gate leaf (16) to guide liquid under the gate leaf (16) and through an opening (10) when the gate leaf (16) is in an open position.