Patent ID: 11967437
Assignee: FRAMATOME GMBH
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC G  Y | IPC G

Claim 0:
1. A nuclear reactor comprising:
a reactor core;
at least one control rod which is movable along a linear path of movement for controlling the reactivity of the reactor core; and
a control rod position indication system comprising:
a permanent magnet mounted on the control rod or a corresponding drive rod; and
a number of reed switches arranged around the path of movement in order to be switched by a magnetic field generated by the permanent magnet when passing by,
the permanent magnet having a north-south axis whose orientation is constant during movement, and the respective reed switch having a number of reed contacts which are aligned along a longitudinal axis,
the longitudinal axis of at least one of the reed switches being inclined relative to the north-south axis of the permanent magnet, and the angle of inclination having an absolute value within a range from 15 to 65 degrees.