Inventor
NORMAN CHRIS
US2 patents
Patents
2 patentsUS7403296B2Jul 22, 2008
Method and apparatus for noncontact relative rail displacement, track modulus and stiffness measurement by a moving rail vehicle
UNIV NEBRASKA65 citations95
US7755774B2Jul 13, 2010
Method and apparatus for noncontact relative rail displacement, track modulus and stiffness measurement by a moving rail vehicle
UNIV NEBRASKA45 citations94