Abstract: The contactless angular position detection device includes a main casing (1) having a through opening (2) formed about a geometric axis (E) and a rotary element (3) to which a permanent magnet (4) is fixed. The rotary element (3) is mounted inside the main casing (1) to rotate with respect thereto about the geometric axis (E) Further, an electronic circuit 5 is mounted inside the main casing (1) and which includes a sensor (7) capable of detecting variations in the magnetic field produced by the permanent magnet (4) when rotating with respect to the main casing (1), a secondary casing (9) coupled to the main casing (1), and plug connection housed in or supported by the secondary casing (9) for connecting said electronic circuit 5 to the outside. The main casing (1) and secondary casing (9) are permanently and tightly attached.

Abstract: The angular position sensor is for assembly on a rotating shaft rotationally guided in a support structure, and includes an annular member having an inner surface socketed on the rotating shaft without relative rotation therebetween, and a housing in which a permanent magnet is inserted. A support is provided having a through hole through which the rotating shaft and the annular member extend, the through hole having an inner surface opposite and close to the annular member with a radial allowance, a cavity housing a sensor device capable of detecting variations in the magnetic field caused by the permanent magnet upon rotating with respect to the support together with the annular member, and an anchoring configuration by which the support is secured to a fixed structure.