RICHARD C ARNOLD
Engineers in Omaha, NE
License number
Pennsylvania PE045595R
Category
Engineers
Type
Professional Engineer
Address
Address
2
Omaha, NE 68114
Pennsylvania
Pennsylvania
Professional information
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
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.