Flow monitoring.

Abstract

The objects of the invention are accomplished by the steps of, first, physically embodying a known relationship, between depth of liquid in the pipe and liquid flow through the pipe, in a system for converting an input value of such depth to the corresponding value of such flow; next, sensing the depth of liquid in the pipe, in the absence of a weir, flume, or other flow-rating device, then inputting the sensed depth value to the conversion system and obtaining the corresponding output flow value, and providing a physical indication of such output flow value. -from Selected Water Resources Abstracts