DEVICE AND METHOD FOR DETECTING MAGNETIC FIELD GENERATION SOURCE

• Main Author: YOSHII YOSHIHARU
• Format: Patent
• Language: English; Japanese
• Published: 30.04.2020
• Subjects: MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; TESTING

To provide a magnetic field generation source detecting device and a magnetic field generation source detecting method, with which a position in the depth direction of a magnetic field generation source inside an inspection object body can be estimated at a relatively low cost.SOLUTION: A magnetic sensor part 10 detects intensity and a direction of a measured magnetic field on a surface or above a surface of an inspection object body. A position estimating part 22 estimates a position in the depth direction of a magnetic field generation source existing at an unspecified position inside the inspection object body, on the basis of the intensity and the direction of the measured magnetic field detected at at least two positions in the two-dimensional directions of the surface by the magnetic sensor part 10.SELECTED DRAWING: Figure 1 【課題】 比較的低コストで、検査対象物体内部の磁場発生源の深さ方向の位置を推定可能である磁場発生源検出装置および磁場発生源検出方法を得る。【解決手段】 磁気センサ部１０は、検査対象物体の表面上または表面上方において被測定磁場の強度および向きを検出する。位置推定部２２は、磁気センサ部１０によって上述の表面の２次元方向における少なくとも２つの位置で検出された被測定磁場の強度および向きに基づいて、検査対象物体内部の不特定の位置に存在している磁場発生源の深さ方向の位置を推定する。【選択図】 図１