US 12,379,438 B2
Pole piece
Neal Gallagher, Calgary (CA); Garett M. Leskowitz, Calgary (CA); Adam Paulson, Calgary (CA); and Colten Wright, Calgary (CA)
Assigned to NANALYSIS CORP., Calgary (CA)
Appl. No. 18/256,470
Filed by NANALYSIS CORP., Calgary (CA)
PCT Filed Dec. 13, 2021, PCT No. PCT/CA2021/051793
§ 371(c)(1), (2) Date Jun. 8, 2023,
PCT Pub. No. WO2022/120502, PCT Pub. Date Jun. 16, 2022.
Claims priority of provisional application 63/124,612, filed on Dec. 11, 2020.
Prior Publication US 2024/0027552 A1, Jan. 25, 2024
Int. Cl. G01R 33/383 (2006.01); G01R 33/3873 (2006.01); H01F 3/10 (2006.01)
CPC G01R 33/383 (2013.01) [G01R 33/3873 (2013.01); H01F 3/10 (2013.01); H01F 2003/106 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A pole piece for use in a Halbach-type magnet configuration, the pole piece having an elongated body adapted for insertion into the Halbach-type magnet configuration and comprising at least two parts operably and removably connected to each other,
wherein the at least two parts comprise:
a top iron having a front face and a rear face;
a bottom iron having a front face and a rear face, the bottom iron being adapted to receive and/or be received by the top iron to form an assembled pole piece such that the front face of the top iron faces the rear face of the bottom iron when in an assembled position;
a depression formed in at least one of: the front face of the top iron and the rear face of the bottom iron, such that an interstitial shim cavity is formed by the depression when the top iron and the bottom iron are in an assembled position;
an interstitial shim layer provided in the interstitial shim cavity.