Patent ID: 7171330
Filing Date: 2007-01-30
Classification: B60G,G01D

Abstract:
1. A rotation and/or tilt angle detection device for a ball and socket joint with a ball pivot, which is mounted rotatably and pivotably in a ball socket and has a joint ball and a pivot, the detection device comprising: a magnet arranged in the joint ball; a display device based on the magneto-optic effect comprising a magneto-optic plate, said display device displaying the magnetic field of said magnet, said magneto-optic plate being exposed to a magnetic field of said magnet; an illuminating means for reflecting light off said magneto-optic plate such that the light is reflected from said display device as a function of the magnetic field; an image detection means for receiving the light reflected from said magneto-optic plate and detecting the information displayed by the display device; and a data processing unit for calculating the position of the ball pivot in relation to the ball socket on the basis of the information detected.