Permanent magnet in-situ magnetic flux testing device

The utility model discloses an in-situ magnetic flux testing device for a permanent magnet, which is characterized in that a circular plastic part is erected on the top of a base through a plurality of fixed brackets which are uniformly wound and vertically arranged, and Helmholtz coils are wound in the base and the circular plastic part; the two supporting frames are symmetrically arranged on the base, and a sample table is rotationally arranged between the two supporting frames and comprises a heater located below the center position of the annular plastic part; the driving device drives the heater to rotate; and a conductive support rod. The electric brush is erected on one side of the base, the tail end of the supporting rod extends into the electric brush, and two telescopic contact rods at the tail end of the supporting rod abut against the electric brush; the microcomputer is arranged on one side of the base and connected with the Helmholtz coil, the driving device and the electric brush through wires.