Magnetostrictive Load Sensor for Roof Bolts.
NTIS: PB/243-897 Available for Reference At Bureau Libraries :108 pages
The report describes a low-cost, moderately accurate rock bolt load sensing unit and the research leading up to its development. The performance of the unit is based on the change in magnetic permeability of materials with stress and includes the novel use of nickel plating as the permeable material.
CP; Final Contract Report;
NTIS Accession No.
NTIS: PB/243-897 Available for Reference At Bureau Libraries
Mechanical Technology, Inc.