MEASURING SURFACE IRREGULARITIES IN PANEL PRODUCTS.
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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1967
- Accession Number
- AD0651125
Entities
People
- B. G. Heebink
Organizations
- Forest Products Laboratory