Testing device for peak value of surface field of magnetic bar

The utility model discloses a testing device for a peak value of a surface field of a magnetic bar. The testing device comprises a base, the magnetic bar and two supporting blocks, wherein the two supporting blocks are fixed on the base; a U-shaped groove is arranged on each of the supporting blocks; the two ends of the magnetic bar are respectively arranged in the U-shaped grooves of the two supporting blocks; a screw rod supporting frame is arranged on the base; a screw rod is arranged on the screw rod supporting frame; a sliding block that is controlled by a handle wheel to slide on the screw rod is arranged on the screw rod; and a teslameter fixture is arranged on the sliding block. With the adoption of the structure, the testing device has the following advantages that: 1, the surface field intensity can be accurately tested along the axial direction of the magnetic bar; 2, the testing speed is fast, and the working efficiency is improved; and 3, the structure is simple, the use is convenient, and the ef