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Title: Doppler Global Velocimetry Dgv() For Flow Metrology At Ptb
Author: Harald Mller, Thomas Lehmacher, Volker Strunck, Dietrich Dopheide
Source: 2002 International Symposium on Fluid Flow Measurement
Year Published: 2002
Abstract: DGV is presented as an optical whole filed acquisition technique for the measurement of three dimensional velocity vector fields in pipes. The aim is to show that DGV, which has originally been used as whole field technique for high flow velocities in wind tunnels, is also a promising technique for lower flow velocities up to 30 m/s for flow metrology in pipe configurations. The described facility at PTB can be used for the investigation of installation effects on flow meters to reduce the error shift of gas meters as well as for first flow rate measurements based upon the definition of the volume flow rate independently on velocity field perturbations.

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