Device for the detection of movements and/or positions of an object

An apparatus for the detection of movements and/or positions of an object, in which a voltage pulse is in each case produced as a function of the movements and/or positions of the object in at least one coil, by means of at least one magnetic field which carries out a relative movement with respect to the coil and acts on it, with the coil at least partially surrounding a spring which is composed of magnetically permeable material and carries out a reciprocating movement under the influence of the magnetic field, on the basis of the reluctance effect, characterized in that the magnetic field is produced by a magnet pair comprising two adjacent magnets (6, 7) of opposite polarity, which are arranged one behind the other in the direction of movement of the object (1, 24, 32) and whose longitudinal axes, in the same way as the longitudinal axes of the coil (4), are oriented essentially at right angles to the movement direction of the object, and in that the reciprocating movement of the spring (5) causes a polarity change, which produces the respective voltage pulse, in the magnetic field with respect to the coil (4).