SELF-CONTAINED INSTRUMENT FOR MEASURING SUBTERRANEAN TUNNEL WALL DEFLECTION

The invention relates generally to apparatus for measuring the amount of deflection of a subterranean tunnel, and more particularly to a completely self-contained rod-like instrument including a deflection measuring transducer, a data storage means, and a visual indicator to an operator.

• Supplemental Notes:
  • Supersedes PB-245 369. This Government-owned invention available for U.S. licensing and, possibly, for foreign licensing. Copy of patent available Commissioner of Patents, Washington, D.C. 20231 $0.50.
• Corporate Authors:

  Department of the Interior

  1849 C Street, NW
  Washington, DC  United States  20240
• Authors:
  • Rasmussen, D E
  • Hof, PJJ
• Publication Date: 1976-10

Media Info

• Pagination: 32 p.

Subject/Index Terms

• TRT Terms: Boreholes; Deflection; Instrumentation; Measuring instruments; Patents; Photodetectors; Recording instruments; Transducers; Tunnels
• Subject Areas: Bridges and other structures; Data and Information Technology; Design;

Filing Info

• Accession Number: 00154120
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: PAT-APPL-585-223 Patent
• Files: TRIS
• Created Date: May 31 1977 12:00AM