US 11,719,766 B2
Magnetic distribution detection method
Yi-Chun Chen, Tainan (TW); Yi-De Liou, Changhua County (TW); and Guo-Wei Huang, Taipei (TW)
Filed by National Cheng Kung University, Tainan (TW)
Filed on Jan. 27, 2022, as Appl. No. 17/585,570.
Claims priority of application No. 110134456 (TW), filed on Sep. 15, 2021.
Prior Publication US 2023/0078584 A1, Mar. 16, 2023
Int. Cl. G01R 33/385 (2006.01); G01R 33/038 (2006.01); G01Q 60/08 (2010.01); G06N 20/00 (2019.01)
CPC G01R 33/0385 (2013.01) [G01Q 60/08 (2013.01); G06N 20/00 (2019.01)] 18 Claims
OG exemplary drawing
 
1. A magnetic distribution detection method, for detecting the magnetic distribution of a sample, and the method comprising the steps of:
(a) providing a magnetic sensor, and precisely aligning a probe of the magnetic sensor with the sample;
(b) selecting a plurality of measuring points on the sample;
(c) sensing the measuring points by the magnetic sensor, and obtaining a plurality of sense data;
(d) converting the sense data into a plurality of data groups by a signal decomposition algorithm; and
(e) selecting one of the data groups as the magnetic distribution data of the sample;
wherein in the step (c), a plurality of heights from the measuring points are sensed, and the sense datum corresponding to each height is obtained.