Velocity measurements at high temperatures by ultrasound Doppler velocimetry using an acoustic wave guide
Velocity measurements at high temperatures by ultrasound Doppler velocimetry using an acoustic wave guide
复制标题
使用声波导通过超声多普勒测速仪进行高温速度测量
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
V. Melnikov
中科院分区：
文献类型：
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作者：
S. Eckert;G. Gerbeth;V. Melnikov
超声多普勒测速仪（UDV）用于测量温度高达620°C时的流速。为了克服超声波换能器的热限制，使用了声波导管。声波波导和压电元件以集成传感器的形式组合。这种方法允许超声多普勒技术在温度高于200°C的液态金属中首次成功应用。在金属熔体的实验中证明了这种集成传感器概念的可行性。在PbBi气泡流和CuSn中进行测量。
Ultrasound Doppler velocimetry (UDV) was used to measure flow velocities at temperatures up to 620°C. To overcome the thermal restriction of the ultrasonic transducers an acoustic wave guide was used. The acoustic wave guide and the piezoelectric element are combined in the 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.