US 12,072,320 B2
Non-contact system for monitoring a metallic magnetic structure under dynamic load
Peter Christiaan Meijers, Delft (NL); Apostolos Tsouvalas, Delft (NL); and Andrey Vladimirovich Metrikine, Delft (NL)
Assigned to TECHNISCHE UNIVERSITEIT DELFT, Delft (NL)
Appl. No. 17/622,381
Filed by TECHNISCHE UNIVERSITEIT DELFT, Delft (NL)
PCT Filed Jun. 5, 2020, PCT No. PCT/NL2020/050366
§ 371(c)(1), (2) Date Dec. 23, 2021,
PCT Pub. No. WO2020/263077, PCT Pub. Date Dec. 30, 2020.
Claims priority of application No. 2023374 (NL), filed on Jun. 25, 2019.
Prior Publication US 2022/0196526 A1, Jun. 23, 2022
Int. Cl. G01L 1/12 (2006.01); G01B 7/24 (2006.01); G01N 3/06 (2006.01)
CPC G01N 3/06 (2013.01) [G01B 7/24 (2013.01); G01L 1/125 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A non-contact system to monitor a metallic magnetic structure, comprising a load providing portion to exert a dynamic load to the structure so as to induce in said structure a propagating stress wave, and further comprising
at least one array of magnetic field sensors, including at least one magneto-resistive sensor the sensors being substantially at a same first height, wherein the sensors are operated at a sampling rate of >10 kHz, the array of sensors is spaced around the structure, and the sensors are configured to measure the propagating stress wave and a rigid body motion of the structure.