Overall measurement accuracy of positive displacement meters

摘要

The phase "overall measurement accuracy" hints at the complexities associated with measuring and analyzing a compressible fluid such as natural gas. Today's utilities are becoming more concerned with purchasing, transporting, and selling a quantity of "energy," not just a volume of some unknown gaseous material. Gravitometers. calorimeters, and chromatographs are joining the measurement tech's bag of tools right along with meters, regulators, and correcting instruments.