Accession Number : AD0696629

Title :   LOCATING LUMBER DEFECTS BY ULTRASONICS.

Descriptive Note : Forest Service research paper,

Corporate Author : FOREST PRODUCTS LAB MADISON WIS

Personal Author(s) : McDonald,Kent A. ; Cox,Roger G. ; Bulgrin,Erwin H.

Report Date : OCT 1969

Pagination or Media Count : 14

Abstract : An ultrasonic scanning technique showed promise in locating lumber defects so they can be recorded precisely, as a step toward automated processing of lumber. As applied, the technique worked especially well with knots and steep grain. (Author)

Descriptors :   (*WOOD, *NONDESTRUCTIVE TESTING), DEFECTS(MATERIALS), ULTRASONIC PROPERTIES, DEGRADATION, PROCESSING, EFFICIENCY, AUTOMATION, TRANSDUCERS, COMPUTER PROGRAMMING, CONTROL, STANDARDS, ULTRASONIC RADIATION, DETECTORS, ATTENUATION

Subject Categories : Wood, Paper and Related Forestry Products
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE