Impellers are used for oil and gas applications in centrifugal compressors to compress the gas or liquid across the flow path. There are various types of impellers with diameters ranging from 200-2000 mm. Distinguishing impeller features are the number of blades, right/left handed, or extruded (constant thickness) or twisted, highly curved. A new, quantitative method is described to measure features in pipeline impellers using computed radiography (CR). This capability, with an accuracy approaching 5 mils, is required to optimize the impeller design for high efficiency. The large area coverage, simplicity, and high spatial resolution of CR are ideal for this application. A novel phantom and image processing algorithm chain was used to demonstrate measurement repeatability of 99.9 % (1 mil) using CR.
Impeller Metrology for pipeline compressors using computed radiography
Schaufelradmesstechnik für Pipelineverdichter mittels Computer-Radiographie
2006
8 Seiten, 9 Bilder, 2 Tabellen, 5 Quellen
Aufsatz (Konferenz)
Datenträger
Englisch
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