The development of an ultrasonic Doppler bed-load velocimeter
Master Thesis
1989
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University of Cape Town
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Abstract
A instrument has been developed for measuring the velocity of solid particles adjacent to the pipe wall in a solids-liquid pipeline. It has been based on the Doppler shift principle and employs ultrasonic methods for detecting the bed-load particle velocity. Its application is in the mining industry for measuring the bed-load velocity of high concentration slurries such as in tailings and backfill hydraulic pipelines. Analyses have been conducted to investigate methods for increasing the accuracy of detecting the bed-load particle velocity. These methods have been implemented in the design of the transducer and the electronic circuitry. The system was tested using a simulation test-rig, hydraulic test-loops and at two industrial mining locations.
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Includes bibliography.
Reference:
Lazarus, M. 1989. The development of an ultrasonic Doppler bed-load velocimeter. University of Cape Town.