US 12,460,926 B2
Detection method, surface density device, detection means, and storage medium
Qiangjun Wang, Ningde (CN); Jingdong Zhang, Ningde (CN); Bingyang Zhan, Ningde (CN); Zhihui Zhen, Ningde (CN); and Weigang Chen, Ningde (CN)
Assigned to CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed by CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed on Oct. 23, 2023, as Appl. No. 18/382,862.
Application 18/382,862 is a continuation of application No. PCT/CN2023/091278, filed on Apr. 27, 2023.
Claims priority of application No. 202211394373.2 (CN), filed on Nov. 8, 2022.
Prior Publication US 2024/0151521 A1, May 9, 2024
Int. Cl. G01B 15/02 (2006.01); G01N 23/223 (2006.01)
CPC G01B 15/02 (2013.01) [G01N 23/223 (2013.01); G01N 2223/303 (2013.01); G01N 2223/304 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A detection method of a surface density device comprising a radiation source and an ionization chamber spaced from the radiation source, the detection method comprising:
obtaining, during operation of the surface density device, a first current pose of the radiation source and a second current pose of the ionization chamber;
ascertaining a first pose deviation of the radiation source based on the first current pose;
ascertaining a second pose deviation of the ionization chamber based on the second current pose; and
determining whether the radiation source has undergone a pose change with respect to the ionization chamber based on the first pose deviation and the second pose deviation.