Abstract
We present a novel design of a contactless flowmeter using a single cylindrical permanent magnet magnetised perpendicularly to its axis, about which it can freely rotate, and placed close to a duct with a liquid metal flow. The electromagetic torque on the magnet caused by the liquid metal flow sets the magnet into rotation. The equilibrium rotation rate, which is attained at a vanishing net electromagnetic torque on the magnet, depends only on the flowrate and the geometry of the system, while it is independent of the electromagnetic torque itself. A laboratory model of such a flowmeter has been built and tested on a liquid metal flow.
| Original language | English |
|---|---|
| Pages (from-to) | 451-458 |
| Number of pages | 8 |
| Journal | Magnetohydrodynamics |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2009 |
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Electrical and Electronic Engineering
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Cite this
Priede, J., Buchenau, D., & Gerbeth, G. (2009). Force-free and contactless sensor for electromagnetic flowrate measurements. Magnetohydrodynamics, (3), 451-458. https://doi.org/10.22364/mhd