US 12,326,486 B2
Method and device for determining a magnetic flux density and method for producing such a device
Jan Berend Meijer, Leipzig (DE); and Johannes Heitmann, Freiberg (DE)
Assigned to Quantum Technologies GmbH, Leipzig (DE)
Appl. No. 18/268,994
Filed by Quantum Technologies GmbH, Leipzig (DE)
PCT Filed Dec. 17, 2021, PCT No. PCT/EP2021/086563
§ 371(c)(1), (2) Date Jun. 22, 2023,
PCT Pub. No. WO2022/136175, PCT Pub. Date Jun. 30, 2022.
Claims priority of application No. 10 2020 134 883.5 (DE), filed on Dec. 23, 2020.
Prior Publication US 2024/0302456 A1, Sep. 12, 2024
Int. Cl. G01R 33/032 (2006.01)
CPC G01R 33/032 (2013.01) 13 Claims
OG exemplary drawing
 
1. A device (10; 50; 100; 150; 200; 250; 300; 350) for determining a magnetic flux density, comprising:
a first material (18; 358), which generates a luminescence and/or a photocurrent upon physical excitation, wherein the luminescence or photocurrent is dependent on the magnetic flux density;
means (14, 20; 60, 20; 108, 20; 156, 20; 204, 20; 254, 20; 304, 308; 354; 358) for generating the physical excitation; and
means (24; 54; 104; 160; 212; 262; 312; 362) for measuring the luminescence or photocurrent with a detection signal representing a strength of the detected luminescence or photocurrent,
wherein the first material (18; 358) and the means (14, 20; 60, 20; 108, 20; 156, 20; 204, 20; 254, 20; 304, 308; 354; 358) for generating the physical excitation are formed in one piece and/or the first material (18; 358) and the means (24; 54; 104; 160; 212; 262; 312; 362) for measuring the luminescence or the photocurrent are formed in one piece,
wherein the means (14, 20; 60, 20; 108, 20; 156, 20; 204, 20; 254, 20; 304, 308; 354; 358) for generating the physical excitation have a source (14; 60; 108; 156; 204; 254; 304; 354) and a conversion means (20; 308; 356),
wherein the source (14; 60; 108; 156; 204; 254; 304; 354) generates a first physical excitation in a light spectrum 200 nm to 500 nm, and
wherein the conversion means (20; 308; 356) absorbs the first physical excitation and emits a second physical excitation in the light spectrum 500 nm to 600 nm.