Bridge suspender damage and wire breakage detection device based on magnetostriction method

The invention discloses a bridge suspender damage and wire breakage detection device based on a magnetostriction method, and the device comprises: a coil assembly mechanism which comprises more than two arc-shaped substrates, wherein all arc-shaped substrates surround the outer side of a suspender to form a fixed substrate structure; a coil unit which comprises an exciting coil and a receiving coil, wherein the exciting coil and the receiving coil are wound on the outer side of the base body structure; a magnetic circuit permanent magnet structure which comprises a yoke, wherein more than onegroup of permanent magnet units are arranged on the yoke, each group of permanent magnet units comprises a saddle piece, a permanent magnet and a clamping piece, and the permanent magnet is connectedwith the yoke and used for generating a uniform magnetic field, the saddle piece is used for connecting the permanent magnet and the clamping piece, and the clamping piece is used for being connectedwith a coil assembling mech