Wheel wear measurement system

• US 4,432,229 A
• Filed: 06/04/1982
• Issued: 02/21/1984
• Est. Priority Date: 06/04/1982
• Status: Expired due to Fees

• Current Assignee: RCA Corporation (General Electric Company)
• Original Assignee: RCA Corporation (General Electric Company)
• Inventors: Nowogrodzki, Markus
• Primary Examiner(s): Woodiel, Donald O.
• Application Number:
  US06/385,055
• Time in Patent Office: 627 Days
• Field of Search: 73/146, 73/510, 73/511, 73/2
• US Class Current: 73/146
• CPC Class Codes: G01M 17/10 Suspensions, axles or wheels
• CPC Class Codes: G01P 3/56 for comparing two speeds

Abstract

A system for measuring wheel wear of a railroad vehicle includes a first speed measuring device, such as a microwave doppler speed sensor for measuring speed of the vehicle independent of wheel rotation rate, a second speed measuring device for measuring vehicle speed in terms of wheel rotation rate and a comparison device for measuring the difference of the two speed signals over time to therefore provide a signal indicative of wheel wear.

Claims

1. A system for measuring wear of a wheel on a moving vehicle comprising in combination:

first means for providing a signal V₁ indicative of the measurement of the actual velocity of said vehicle independent of wheel motion;

second means of providing a signal V₂ indicative of revolutions per unit time of said wheel; and

means responsive to signals V₁ and V₂ for determining the difference between V₁ and V₂ at time spaced points at at least one value of V₁ to determine therefrom wear of said wheel.

2. Combination as set forth in claim 1 wherein said first means comprises a microwave doppler speed sensor.

3. Combination as set forth in claim 1 or claim 2 wherein said first means is mounted on said vehicle.

4. Combination as set forth in claim 1 or claim 2 wherein said vehicle is a railroad type vehicle.