Current measurement sensor of the Rogowski coil type comprising a carrier made of non-magnetic material and at least one secondary winding wound on the said carrier in order to supply an electrical signal representative of a current flowing in a conductor passing through the inside of the coil, wherein the said secondary winding comprises at least two layers (6, 7) the electrical terminations of whose windings are situated on one and the same first end of the winding, the said winding comprising: - at least one internal layer with a high turn density close to the carrier and wound in a first direction of winding from the first end towards a second opposite end of the winding, and - at least one external layer with a low turn density comprising at least three portions (12, 13, 14) and wound in a second direction of winding from the second opposite end of the winding towards the first end, characterized in that the said external layer with a low turn density comprises: - a first compensation portion with a high turn density and of small length close to the first end of the winding, - a central portion with a low turn density and of large length, and - a second compensation portion with a high turn density and of small length close to the second end of the winding, - the said large length of the central portion being greater than ten times the sum of the small lengths (L1, L3) of the high-density portions (12, 14), and the said high turn density having a spacing between turns less than the diameter of the winding wire on the inside of the said coil, the low turn density having a spacing between turns greater than the diameter of the wire of the winding. - at least one internal layer with a high turn density close to the carrier and wound in a first direction of winding from the first end towards a second opposite end of the winding, and - at least one external layer with a low turn density comprising at least three portions (12, 13, 14) and wound in a second direction of winding from the second opposite end of the winding towards the first end, characterized in that the said external layer with a low turn density comprises: - a first compensation portion with a high turn density and of small length close to the first end of the winding, - a central portion with a low turn density and of large length, and - a second compensation portion with a high turn density and of small length close to the second end of the winding, - the said large length of the central portion being greater than ten times the sum of the small lengths (L1, L3) of the high-density portions (12, 14), and the said high turn density having a spacing between turns less than the diameter of the winding wire on the inside of the said coil, the low turn density having a spacing between turns greater than the diameter of the wire of the winding. - a first compensation portion with a high turn density and of small length close to the first end of the winding, - a central portion with a low turn density and of large length, and - a second compensation portion with a high turn density and of small length close to the second end of the winding, - the said large length of the central portion being greater than ten times the sum of the small lengths (L1, L3) of the high-density portions (12, 14), and the said high turn density having a spacing between turns less than the diameter of the winding wire on the inside of the said coil, the low turn density having a spacing between turns greater than the diameter of the wire of the winding.