非破壊検査・評価における高感度磁界センサの活用事例

抄録

Recently, magnetic field sensors such as hall sensor, magnetoresisitive sensor, fluxgate sensor and magnetoimpedance sensor advance their sensitivity and their miniaturization; this contributes to enhance of electromagnetic nondestructive testing and evaluation (NDT & E) techniques, eddy current testing (ECT) and magnetic flux leakage (MFL), for social foundations. This paper reviews the case studies in applications of higher sensitive and miniaturized magnetic field sensor for NDT & E techniques.