Tiltmeter Instrumentation for Deep Hole Operation

Abstract

Extensive field tests with the first deep-hole tiltmeter system (DBT- 1) have been completed and a second system (DBT-2) is being made ready for tests at the shallow test borehole at Bedford, Massachusetts. Problems encountered with cable generated noise and drift have been resolved by using a chain-type cable decoupler and a four-point contact holelock modification. Several improvements have been made on the DBT-2 control electronics and the downhole electronics of the DBT-1 was rebuilt to become identical with the improved downhole electronics of the DBT-2 system.

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Document Details

Document Type
Technical Report
Publication Date
Jun 14, 1972
Accession Number
AD0748262

Entities

People

  • Ivan Simon

Organizations

  • Arthur D. Little

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Air Force
  • Army
  • Army Corps Of Engineers
  • Boreholes
  • Circuit Boards
  • Classification
  • Control Panels
  • Control Systems
  • Electronics
  • Engineers
  • Field Tests
  • Instrumentation
  • Materials
  • Scientific Research
  • Security
  • Tilt
  • Tiltmeters

Readers

  • Geotechnical Engineering.
  • Optical Fiber Sensing and Electromagnetic Propagation.
  • Seismology

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems