Accession Number:

AD0672039

Title:

PORTABLE APPARATUS FOR MEASURING SURFACE IRREGULARITIES IN PANEL PRODUCTS.

Descriptive Note:

Forest Service research note,

Corporate Author:

FOREST PRODUCTS LAB MADISON WIS

Personal Author(s):

• Hefty,F. V.
• Brooks,J. K.

Report Date:

1968-05-01

Pagination or Media Count:

16.0

Abstract:

Portable apparatus developed at the Forest Products Laboratory makes possible approximate measurement of vertical deformations on wood surfaces. Fixed-focus camera unit provides photographs of surface under study, using a shadow-casting technique. Author

Descriptors:

• (*WOOD
• ROUGHNESS)
• QUALITY CONTROL
• PHOTOGRAPHIC EQUIPMENT
• DEFORMATION
• TEST EQUIPMENT
• TEST METHODS
• FLOW VISUALIZATION

Subject Categories:

• Wood, Paper and Related Forestry Products

Distribution Statement:

APPROVED FOR PUBLIC RELEASE