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Title: New Generation Vibrating Tube Sensor for Density Measurement under Process Conditions
Author: Alfred Rieder Paul Ceglia
Source: 2017 North Sea Flow Measurement Workshop
Year Published: 2017
Abstract: Density is one of the most prominent means to classify the physical properties of crude oil and refined products and as such, accurate density measurement has significant importance and value to the hydrocarbon processing industry. Continuous density measurement is used in the determination of quantities for custody transfer and allocation measurements, inventory control, product quality control, blending applications as well as interface detection. The most stringent density performance requirements for accuracy, repeatability, linearity and reproducibility are normally found in custody transfer applications and those applications impacting financial reporting or taxation. Custody transfer systems require both a density and a volume or mass component of sufficient accuracy to determine fiscal quantities. Furthermore, determination of quantities by inferred mass, where metering is done on a volumetric basis but reporting is in mass terms, require the lowest density uncertainties due to the direct first order effect of the density measurement uncertainty to the overall uncertainty of the reported quantity.

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