FIELD: electrical equipment.
SUBSTANCE: invention relates to the electrical equipment. Coil main body for manufacture of the eddy current sensor has head (2) for winding determining the longitudinal axis (X), in the outer surface of which there are two circumferential slots (3, 4), each of which extends around the perimeter of head (2) around core (5) windings. Circular grooves (3, 4) intersect on upper side and lower side of winding head (2) relative to longitudinal axis position and serve for placement of coil wire (6) winded around core (5) of winding in form of cross winding. Circumferential slots (3, 4), if viewed in circumferential direction, are confined by retaining ribs (8, 9, 10, 11), which extend in direction of longitudinal axis and protrude beyond winding (5) of winding in direction of two axial end areas of main housing (1) of coil, as well as in radial direction. At that, in core (5) of winding, in particular in area of intersection of two circumferential grooves (3, 5), seat (16) for ball from ferromagnetic material is made.
EFFECT: technical result is improved efficiency.
15 cl, 11 dwg
