Patent ID: 8803512

Claim:
A method for using a band sensor ( 1 ) according to the measuring band principle with a measuring band ( 4 ) to be wound up on a winding drum in a radial plane ( 11 ) for defining a position of a component in an interior of a housing and with a preloading unit preloading a winding drum ( 2 ) in windup direction, whereby the component is coupled with the free end of the measuring band, comprising: at least one magnet ( 3 a . . . ) is rotationally coupled with the winding drum ( 2 ) of the band with sensor ( 1 ), so that the magnet is drivable by the winding drum ( 2 ) in rotation about a magnet rotation axis, wherein a pole axis of the magnet is disposed transversal to a magnet rotation axis; the band sensor ( 1 ) is disposed together with the magnet ( 3 a . . . ) inside of a magnetically permeable wall portion ( 50 a ) of the housing; a magnetic field sensitive sensor ( 20 ) detecting a rotation position of a magnet ( 3 a ) is disposed on an outside of the housing opposite to the magnet ( 3 a ); and numerically compensating for the measuring band length varying with the percentage of windup by processing electronics.