公开(公告)号：US20230057398A1

公开(公告)日：2023-02-23

申请号：US17790390

申请日：2019-12-31

Applicant: AGENCY FOR SCIENCE TECHNOLOGY AND RESEARCH ,  SEMBCORP INDUSTRIES LTD.

Inventor： Jianzhong HAO ,  Wenyu JIANG ,  Yixin WANG ,  Aayush MADAN ,  Shili XIANG ,  Jun Long LIM ,  Ouyang LIU ,  Yongwei ZHU ,  Kai WU ,  Jiliang Eugene PHUA ,  Rebecca Yen-Ni WONG ,  MURALIDHARAN S/O PARAMSOTHY ,  Hui DONG ,  Chuen Yuen Henry WONG ,  Wen CHEN ,  Haiyan SHU

IPC: G01B11/06 ,  G01D5/353 ,  F17C13/02

Abstract: The present disclosure relates to at least one method for ascertaining at least one attribute of pressure vessel wall. A method comprises: while a pressure vessel, which comprises a wall having an outer surface and an inner surface, is operating: ascertaining a current wavelength shift of a first fiber Bragg grating (FBG) sensor disposed at a first outer surface location on the pressure vessel; and ascertaining a current thickness of the wall at the first outer surface location by: computing a vector based on a time series of the current wavelength shift, or a derivative of the time series, or a derivative of the current wavelength shift; providing the vector to a predetermined regression model; and using the regression model, ascertaining the current thickness of the wall.