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Title: Fundamental Principles Of Displacembnt Meters
Author: Budd Spitler
Source: 1974 Gulf Coast Measurement Short Course (Now called ASGMT)
Year Published: 1974
Abstract: There are a variety of meters used in the measurement of gas today. We will consider in this paper only the meters that measure gas volume directly without regard to its temperature, pressure or density. These meters are generally referred to as positive displacement meters. There are three basic types of meters that fall in to this category-wet meters, dry-type diaphragm meters and rotary meters. The firstpractical displacement meter was the revolving drum, water sealed, wet meter, developed in England around I8I5 by Samuel Glegg. This meter was first used to measure manufactured gas as it left the plaint. Most of these meters were very large, however a few small ones were used to measure domestic customers. Although the wet meter is a very accurate device, it is not very practical for use as a field distribution meter because of the difficulty in maintaining a proper water level and in preventing freezing in the winter months. For gas distribution measurement, the wet meter was discarded in favor of a dry type meter.

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