Barometrically compensated pressure index continuous integrator for measuring throughput fluid flow of meters

摘要

A barometrically compensated pressure index continuous integrator assembly for measuring the throughput fluid flow of a meter comprising a pressure sensing means mounted within a chamber and adapted to expand or contract in a straight line responsive to changes in the pressure of the fluid flow. The chamber or pressure sensing means communicates with the fluid flow of the meter to communicate line pressure therefrom and the other is evacuated to substantially zero absolute pressure. A link transfer assembly interconnects the pressure sensing means with a pressure index continuous integrator for regulating the output thereof in accordance with variations in the absolute pressure being measured.