Development of Instrumentation to Monitor the Radial Deformation of the Medium around an Underground Opening. Part 2. Laser System
Final technical rept. 29 Sep 1972-15 Nov 1973
PACIFIC NORTHWEST LABS RICHLAND WA
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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.
- Mining Engineering
- Test Facilities, Equipment and Methods