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Title: Diaphragm Meter Design And Operation
Author: Jim Thomson
Source: 2000 Appalachian Gas Measurement Short Course
Year Published: 2000
Abstract: A diaphragm meter is a positive displacement instrument which is used to measure the volume of gas that passes through it. This is accomplished through the known volume that is displaced for each stroke of the diaphragm. The diaphragm also provides the seal between the measuring chambers of the device. As such the diaphragm meter has proven to be an accurate and reliable means of measurement of gas for many years. This is especially true at low flow rates because of its positive displacement characteristics. This paper includes a basic review of the function and design of the positive displacement meter as well as an explanation of the operation of the diaphragm meter.

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