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Velocity measurements at high temperatures by ultrasound Doppler velocimetry using an acoustic wave guide

Eckert, S.; Gerbeth, G.; Melnikov, V. I.

The ultrasound Doppler velocimetry (UDV) has been used to measure flow velocities at temperatures up to 620°C. To overcome the thermal restriction of the ultrasonic transducers an acoustic wave guide has been used. The acoustic wave guide and the piezoelectric element are combined in form of an integrated sensor. This approach allowed the first successful application of the ultrasound Doppler technique in liquid metals at temperatures above 200°C. The feasibility of this integrated sensor concept was demonstrated in experiments with metallic melts. Measurements were performed in a PbBi bubbly flow and in CuSn.

Keywords: flow measurement technique; ultrasound Doppler technique; fluid velocity; opaque fluids; liquid metal

  • Experiments in Fluids, Vol.35/5 (2003), 381-388

Permalink: https://www.hzdr.de/publications/Publ-4469
Publ.-Id: 4469