184 citations · 825 across the 16 of their papers we have counts for
16 papers
The magnetic properties of the hollow cylindrical ideal remanence magnet
R. Bjørk
We consider the magnetic properties of the hollow cylindrical ideal remanence magnet. This magnet is the cylindrical permanent magnet that generates a uniform field in the cylinder…
Metamaterial anisotropic flux concentrators and magnetic arrays
R. Bjørk, A. Smith, C. R. H. Bahl
A metamaterial magnetic flux concentrator is investigated in detail in combination with a Halbach cylinder of infinite length. A general analytical solution to the field is determi…
Determining the minimum mass and cost of a magnetic refrigerator
R. Bjørk, A. Smith, C. R. H. Bahl +1
An expression is determined for the mass of the magnet and magnetocaloric material needed for a magnetic refrigerator and these are determined using numerical modeling for both par…
The influence of the magnetic field on the performance of an active magnetic regenerator (AMR)
R. Bjørk, K. Engelbrecht
The influence of the time variation of the magnetic field, termed the magnetic field profile, on the performance of a magnetocaloric refrigeration device using the active magnetic…
Comparison of adjustable permanent magnetic field sources
R. Bjørk, C. R. H. Bahl, A. Smith +1
A permanent magnet assembly in which the flux density can be altered by a mechanical operation is often significantly smaller than comparable electromagnets and also requires no el…
Improving magnet designs with high and low field regions
R. Bjørk, C. R. H. Bahl, A. Smith +1
A general scheme for increasing the difference in magnetic flux density between a high and a low magnetic field region by removing unnecessary magnet material is presented. This is…