| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic field sensor capable of measuring the flux density accurately for each slot in a stator or rotor of a dynamo-electric machine.SOLUTION: There is provided a magnetic field sensor 3 arranged directly above each slot into which the winding in the stator or rotor of a dynamo-electric machine is inserted, and measuring the flux density for each slot. A magnetic field detector 31 of the magnetic field sensor 3 is provided with guide pieces 34, 34 that are fitted removably in the groove formed in the slot upper surface in the inserting direction of winding. The magnetic field sensor 3 is provided with a stopper piece 35 for positioning the magnetic field detector 31 at a predetermined position of the slot in the longitudinal direction, by abutting against the edge of the slot.SELECTED DRAWING: Figure 1 |
