On-balance volume (OBV), a momentum indicator that measures positive and negative volume flow, was developed by Joseph Granville and introduced in 1963 to the technical community inside the pages ...

Liquid flow meters are used to measure the volumetric flow rate or amount of a moving liquid ... Video credit: FlowLineOptions / CC BY 3.0 As a rule, a liquid flow meter's technology determines its ...

Sonar Sonar is used to measure the volumetric flow rate of a process fluid. The measurement principle involves characterizing the speed at which coherent vortical structures flow past an array of ...