System and method for meter substitution for co-located flowmeters

摘要

A system and method for ultrasonic flow metering. In one embodiment, an ultrasonic flow metering system includes a plurality of ultrasonic flowmeters. Each of the ultrasonic flowmeters includes a flow processor. The flow processor is configured to maintain a plurality of velocity bins, each of the bins corresponding to a flow velocity range for the flowmeters. The flow processor is also configured to maintain, within each of the bins, a value indicative of past average velocity of fluid flow through a given one of the flowmeters associated with a given one of the bins. The flow processor is further configured to determine, responsive to one of the flowmeters having failed, an estimated average fluid flow velocity through the system based on the values maintained within the bins.