TY - JOUR
T1 - Fabrication and characterization of a magnetized metal-encapsulated FBG sensor for structural health monitoring
AU - Jinachandran, Sagar
AU - Li, Huijun
AU - Xi, Jiangtao
AU - Prusty, B. Gangadhara
AU - Semenova, Yuliya
AU - Farrell, Gerald
AU - Rajan, Ginu
N1 - Publisher Copyright:
© 2001-2012 IEEE.
PY - 2018/11/1
Y1 - 2018/11/1
N2 - A novel means of metal packaging of a fiber Bragg grating (FBG) sensor using stainless steel and tin, together with high temperature resistant samarium cobalt (SmCo) magnet is proposed in this paper. The inclusion of high temperature-capable SmCo magnets enable the metal packaging of the FBG sensor with magnetic capabilities. This packaged sensor can be placed in direct contact with the substrate structures such as iron pipelines and other ferromagnetic components without any adhesives, making them easily detachable and reusable. This is a significant improvement compared with other commercial fiber optic sensors which are, surface attached using epoxies or welded to the substrate. The design parameters and characteristic properties such as load, temperature, and vibration sensitivity of the magnetic metal-packaged FBG sensor are studied numerically and validated experimentally to demonstrate the feasibility of using the encapsulated reusable FBGs for structural health monitoring of compatible structures.
AB - A novel means of metal packaging of a fiber Bragg grating (FBG) sensor using stainless steel and tin, together with high temperature resistant samarium cobalt (SmCo) magnet is proposed in this paper. The inclusion of high temperature-capable SmCo magnets enable the metal packaging of the FBG sensor with magnetic capabilities. This packaged sensor can be placed in direct contact with the substrate structures such as iron pipelines and other ferromagnetic components without any adhesives, making them easily detachable and reusable. This is a significant improvement compared with other commercial fiber optic sensors which are, surface attached using epoxies or welded to the substrate. The design parameters and characteristic properties such as load, temperature, and vibration sensitivity of the magnetic metal-packaged FBG sensor are studied numerically and validated experimentally to demonstrate the feasibility of using the encapsulated reusable FBGs for structural health monitoring of compatible structures.
KW - Acoustic emission sensors
KW - fiber Bragg gratings
KW - strain
KW - temperature
KW - welding
UR - http://www.scopus.com/inward/record.url?scp=85052712563&partnerID=8YFLogxK
U2 - 10.1109/JSEN.2018.2866803
DO - 10.1109/JSEN.2018.2866803
M3 - Article
AN - SCOPUS:85052712563
SN - 1530-437X
VL - 18
SP - 8739
EP - 8746
JO - IEEE Sensors Journal
JF - IEEE Sensors Journal
IS - 21
M1 - 8444738
ER -