Richard C Arnold
Engineers in Omaha, NE
License number
Utah 271121-2202
Issued Date
Apr 20, 1994
Expiration Date
Dec 31, 2000
Category
Engineer/Land Surveyor
Type
Professional Engineer
Address
Address
Omaha, NE
Professional information
See more information about Richard C Arnold at trustoria.com
Method And Apparatus For Noncontact Relative Rail Displacement, Track Modulus And Stiffness Measurement By A Moving Rail Vehicle
Method And Apparatus For Noncontact Relative Rail Displacement, Track Modulus And Stiffness Measurement By A Moving Rail Vehicle
US Patent:
7755774, Jul 13, 2010
Filed:
Jun 12, 2008
Appl. No.:
12/138046
Inventors:
Shane Farritor - Lincoln NE, US
Richard Arnold - Elkhorn NE, US
Chris Norman - Littleton CO, US
Richard Arnold - Elkhorn NE, US
Chris Norman - Littleton CO, US
Assignee:
Board of Regents of University of Nebraska - Lincoln NE
International Classification:
G01B 11/14
US Classification:
356614, 356622
Abstract:
An on-board, noncontact measurement system and method is disclosed for measuring track quality, vertical track stiffness and vertical track modulus for a portion of track underlying the rail vehicle. The system comprises first and second optical emitters mounted to the vehicle and configured to emit beams of light that are detectable on the underlying surface; a camera mounted to the vehicle for recording the distance between the beams of light as the vehicle travels along the surface, a mechanism for measuring the distance between the beams of light for a particular portion of the surface; and a mechanism for determining the vertical track stiffness or vertical track modulus for a particular portion of the track.
Method And Apparatus For Noncontact Relative Rail Displacement, Track Modulus And Stiffness Measurement By A Moving Rail Vehicle
Method And Apparatus For Noncontact Relative Rail Displacement, Track Modulus And Stiffness Measurement By A Moving Rail Vehicle
US Patent:
7403296, Jul 22, 2008
Filed:
Nov 4, 2005
Appl. No.:
11/267713
Inventors:
Shane Farritor - Lincoln NE, US
Richard Arnold - Elkhorn NE, US
Chris Norman - Littleton CO, US
Richard Arnold - Elkhorn NE, US
Chris Norman - Littleton CO, US
Assignee:
Board of Regents of University of Nebraska - Lincoln NE
International Classification:
G01B 11/14
US Classification:
356614, 356622
Abstract:
An on-board, noncontact measurement system and method is disclosed for measuring track quality, vertical track stiffness and vertical track modulus for a portion of track underlying the rail vehicle. The system comprises first and second optical emitters mounted to the vehicle and configured to emit beams of light that are detectable on the underlying surface; a camera mounted to the vehicle for recording the distance between the beams of light as the vehicle travels along the surface, a mechanism for measuring the distance between the beams of light for a particular portion of the surface; and a mechanism for determining the vertical track stiffness or vertical track modulus for a particular portion of the track.