C1 combined magnetic measuring sensor

The utility model provides a C1 combined magnetic measuring sensor comprising a magnetic yoke, a primary winding, a secondary winding and an insulated medium forming a closed-loop magnetic circuit. The closed-loop magnetic circuit comprises a C-shaped fitting, an I-shaped fitting, an I-shaped fitting insulated frame (5) and an I-shaped secondary winding (6) wound on the I-shaped fitting insulated frame (5); the C-shaped fitting comprises a C-shaped magnetic yoke (3) with uniformly distributed C-shaped primary windings (1); the insulated medium (2) is arranged between the magnetic yoke (3) and the primary winding (1); baffles (4) are respectively arranged at both ends of the primary winding (1); a sample (7) to be tested is inserted in the I-shaped fitting insulated frame (5); both ends of the sample (7) to be tested are tightly attached to both end surfaces of the C-shaped magnetic yoke (3) which forms a magnetic closed circuit with the sample (7) to be tested; and the I-shaped secondary winding (6) of the I-shaped fitting is used as a tested coil.