SMALL VOLUME PROVER APPARATUS AND METHOD FOR MEASURING FLOW RATE

摘要

A small volume prover apparatus and method for precisely measuring the flow rate of a fluid via a cylindrical component such as a flow tube. A precision bore cylinder and a piston can be configured with a valve arrangement in order to permit fluid to pass through an annular passage when the piston travels from one position to an opposite position. An accelerometer sensor can be mounted to the piston for continuously detecting the velocity of the piston traveling in the pipe by integrating acceleration data with respect to time data. The volumetric flow rate can be automatically calculated by multiplying the velocity with respect to the area of the flow tube.