Results 1 - 3 of 3

• Bolt Load Changes During Initial Face Advance and Cross-Cut Breakthrough
  8/1/2004 - Conference papers
  The San Juan Mine and the National Institute for Occupational Safety and Health conducted a study to measure how development mining affected bolt loads.
• A Miniature Data Acquisition System with LED Warning Lights
  9/1/2003 - Conference papers
  Researchers have developed a miniature data acquisition system (MIDAS) that can measure resistance changes and temperature, store data for later retrieval, and illuminate LED lights. This instrument can be used with strain-gaged bolts, cable bolts, CSIR...
• New Tools for Roof Support Evaluation and Design
  8/1/2003 - Conference papers
  This paper describes two tools NIOSH developed. The miniature data acquisition system (MIDAS) could make geotechnical instruments in underground mines more feasible. The rock strain strip, together with MIDAS, more accurately measures rock movement.