Accession Number : AD0719692

Title :   An Infrared Diagnostic Technique for Evaluation of Automotive Tires.

Descriptive Note : Final rept.,

Corporate Author : ARMY TANK-AUTOMOTIVE COMMAND WARREN MICH

Personal Author(s) : Wilburn,David K.

Report Date : DEC 1970

Pagination or Media Count : 61

Abstract : A real time infrared tire diagnostic procedure is described which utilizes a method of pattern recognition to predict and classify real and developing failures in pneumatic automotive tires. The instrumentation developed for this inspection method comprises a dual mode AC-DC high speed indium antimonide detector radiometer capable of measuring both absolute high resolution tire temperature in the AC mode and thermal profile in the DC condition. Tire defects as small as 0.5-inch square can be discriminated at speeds of 60 MPH. Pattern recognition of standard tire defects was 'learned' by examination of specially prepared tires having built-in or known type defects. The report classifies ten types of defects and describes the instrumentation and diagnostic techniques developed during the course of the program.

Descriptors :   (*TIRES, NONDESTRUCTIVE TESTING), (*NONDESTRUCTIVE TESTING, INFRARED SCANNING), (*INFRARED SCANNING, TIRES), DEFECTS(MATERIALS), VELOCITY, OSCILLOSCOPES, THERMAL PROPERTIES, PATTERN RECOGNITION, RADIOMETERS, INSTRUMENTATION

Subject Categories : Surface Transportation and Equipment
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE