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Title: Application Of Densitometers To Orifice Meter Installations
Author: Edgar E. Buxton
Source: 1970 American School of Gas Measurement Technology
Year Published: 1970
Abstract: Measurement of flowing density is, therefore, attractive for telemetering and online computer systems as a means of reducing the number of data variables measured and transmitted. The weight equations apply equally well for liquids although the above presentation includes terms which are specific to gases. Density can be measured by several techniques. Common methods include weight of a known volume of sample, buoyancy of a body of known volume or constant volume (Archimedes Principle) and centrifugal momentum. The methods of interest lo flow measurement involve specific hardware to make the density measurement. Therefore, this presntation involves the use of manufacturers information, pictures, diagrams, slides, etc., which were generously made available for this class and paper. Each will be discued briefly to describe its principle of operation and how an indication or signal proportional to density is obtained. General considerations for the application of densitometers to an orifice meter and how the desired flowing density may be obtained by measurement and compensation are included.

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