Mr involving a non-standard magnetic field b0

Official title: {MR involving a non-standard magnetic field B0, e.g. of low magnitude as in the earth's magnetic field or in nanoTesla spectroscopy, comprising a polarizing magnetic field for pre-polarisation, B0 with a temporal variation of its magnitude or direction such as field cycling of B0 or rotation of the direction of B0, or spatially inhomogeneous B0 like in fringe-field MR or in stray-field imaging}

G01R33/445 (Mr involving a non-standard magnetic field b0) appears on 442 US grants and 521 published applications in this corpus.