Accession Number:

AD0785241

Title:

Development of Instrumentation to Monitor the Radial Deformation of the Medium around an Underground Opening. Part 2. Laser System

Descriptive Note:

Final technical rept. 29 Sep 1972-15 Nov 1973

Corporate Author:

PACIFIC NORTHWEST LABS RICHLAND WA

Personal Author(s):

Report Date:

1973-11-15

Pagination or Media Count:

68.0

Abstract:

The instrumentation developed provides unique tools for the study of stability of underground openings particularly where deformation measurements are required very close to a drilled or blasted opening and where extended periods of automatic data recording are needed. The Laser System employs a coarse and fine raster scanning concept to measure relative motion of passive targets. The course scan locates a target within a 1-in. square approximate field of view the fine scan locates the targets position within the 1-in. square. The concept, in theory, should have very good accuracy and repeatability but depends upon the capabilities of the instrument components. Details of the concept are contained in Appendix B.

Subject Categories:

  • Mining Engineering
  • Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE