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Title: Electromagnetic flowmeters in multiphase flows
Author: Krafft, Rainer
Awarding Body: Cranfield University
Current Institution: Cranfield University
Date of Award: 1993
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The response of an Electromagnetic Flowmeter to a secondary, nonconducting phase in a continuous conducting phase is investigated. Experiments are carried out on a commercial 2' Foxboro flowmeter with sinusoidal mains field excitation and point electrodes. The main aspects which are looked for are the change in flow signal and transformer signal. A mathematical model is developed to simulate the effect of the nonconducting phase in. the form of single spherical particles. The model also allows one to alter the electrode geometry. A second flowmeter is designed to incorporate an improved electrode and coil geometry as well as a newly designed signal processing unit. In a series of experiments, the predictions of the theoretical model have been mostly verified.
Supervisor: Sanderson, M. L. ; Hemp, J. Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Electrometry & electronic test equipment Electric measurements Electronic measurements