Water quantity measurement device, e.g. for rain monitoring in rain overflow and retention tanks and water power systems

摘要

The device has at least one movable overflow threshold (3) instead of a stationary overflow device or mounted in a stationary one (2). Several movable overflow thresholds can be used, pref. sequentially or even in parallel. The movable threshold consists of one or more geometrically defined parts with a channel shape favourable for measurement purposes, e.g. rectangular, triangular or with a curved upper edge. It is adjusted with one or more suitable elements, e.g. chains, belts or toothed rods.