Transducer Preparation and Gage Assembly of the Bureau of Mines Three-component Borehole Deformation Gage.
NTIS: PB 278 575 :19 pages
Instructions and descriptions are presented in two parts to assist an individual to make the borehole deformation gage transducer, and to assemble and test the three-component borehole deformation gage. This Bureau of Mines three-component borehole deformation gage fits in a 1-1/2-in-diameter borehole that is drilled in rock and then overcored to determine rock stress.
IH; Information Circular;
NTIS Accession No.
NTIS: PB 278 575