Apparatus and method for non-destructive testing of the magnetic material testing in the case of para - or diamagnetic materials

摘要

Device for non-destructive magnetic material testing in the case of para - and diamagnetic materials (5) is closed on all sides with a housing (3) consisting of a non-magnetizable material to be put on the material to be tested (5), a magnet (1) by means of an on the housing (3) attached to the spring element (2) movable in the housing (3) is held, and a sensor (4, 7), which is implemented as a result of a magnetic interaction between the magnet (1) and the material to be examined (5) resulting deviation of the magnet (1) from a resting position, in which the magnet (1) the housing (3) not touch, to be detected, wherein an electronic evaluation unit (9) is provided, comprising a of the sensor (4, 7) detected deflection of the magnet (1) in the magnetic permeability of the test material (5) converts.