Accession Number : AD0651125

Title :   MEASURING SURFACE IRREGULARITIES IN PANEL PRODUCTS.

Descriptive Note : Research note,

Corporate Author : FOREST PRODUCTS LAB MADISON WIS

Personal Author(s) : Heebink,B. G.

Report Date : APR 1967

Pagination or Media Count : 4

Abstract : A method was developed which permits an approximate measurement of vertical deformations in wood panel surfaces. A narrow slit of bright light directed at a tightly stretched wire so as to cast a shadow on an inclined test surface. A photograph, taken from directly above, reveals any irregularities by the form of the shadow so cast.

Descriptors :   (*PANELS, TEST METHODS), (*WOOD, TEST METHODS), SURFACE PROPERTIES, DEFORMATION, PHOTOGRAPHIC ANALYSIS, TEST EQUIPMENT

Subject Categories : Wood, Paper and Related Forestry Products
      Structural Engineering and Building Technology

Distribution Statement : APPROVED FOR PUBLIC RELEASE