Inductive proximity sensor and method for fitting said sensor

An inductive sensor comprising:

• a casing including:
• a U-shaped ferromagnetic core including two outer branches extending in a longitudinal direction and a transverse branch connecting the two branches;
• two detection coils, arranged one on each of the outer branches of the core and configured to be connected to processing means;
• calibration means positioned between the two outer branches of the magnetic core, a longitudinal positioning of the calibration means relative to the end of the outer branches being adjustable;
• and
• an intermediate fixing part for fixing the calibration means on the ferromagnetic core,
• wherein the calibration means includes a threaded zone configured to screw into a smooth hole formed in the intermediate fixing part so as to be displaced between the outer branches, and
• wherein the intermediate fixing part is placed forcibly in an opening formed in the transverse branch and includes:
• a first cylindrical zone passing through the ferromagnetic core and including a soft end, which is deformable and truncated to be positioned inside the outer branches and to ensure a jamming of the part after the driving of the calibration means into the smooth hole, and
• a second cylindrical zone positioned outside the outer branches.