AUTOMATIC TREAD GAGING MACHINE

An automatic tread gaging machine has been developed. It consists of three component systems: (1) a laser gaging head, (2) a tire handling device, and (3) a computer that controls the movement of the tire handling machine, processes the data, and computes the least-squares straight line from which a wear rate may be estimated. Experimental tests show that the machine has good repeatability. In comparisons with measurements obtained by a hand gage, the automatic machine gives smaller average groove depths. The difference before and after a period of wear for both methods of measurement are the same. Wear rates estimated from the slopes of straight lines fitted to both sets of data are not significantly different.

• Corporate Authors:

  American Society for Testing and Materials (ASTM)

  100 Barr Harbor Drive, P.O. Box C700
  West Conshohocken, PA  United States  19428-2957
• Authors:
  • Ludwig, G S
  • Brenner, F C
• Publication Date: 1979-1

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 31-39
• Serial:
  • Tire Science and Technology
  • Volume: 7
  • Issue Number: 1-2

Subject/Index Terms

• TRT Terms: Depth; Lasers; Measuring instruments; Pavement grooving; Tire treads; Tires; Wear
• Old TRIS Terms: Grooves; Laser applications
• Subject Areas: Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00349818
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: HS-032 315
• Files: HSL, USDOT
• Created Date: May 28 1982 12:00AM