A wheel alignment system measures true camber and true pitch. Camber and pitch angles are measured using a head unit coupled to the wheel of the automotive vehicle. True camber and true pitch are calculated based upon measured camber and measured pitch, a camber crosstalk value, and a pitch crosstalk...http://www.google.fr/patents/US5329452?utm_source=gb-gplus-shareBrevet US5329452 - Crosstalk compensation in wheel alignment system
