FIBER OPTIC PORE PRESSURE SENSOR DEVELOPMENT

Low-cost fiber optic sensors capable of measuring loads and pressures, including pore water pressures, have been developed. These sensors employ microbend fiber optic technology and are capable of measuring pressures from 0 to 700 kPa (100 psi). They are relatively inexpensive and give reliable and repeatable results. A calibration setup was developed to ensure reliable data acquisition during load or pressure testing of microbend sensors. Sensor development and operation, along with their sensitivities, are described. The preferred configuration could be placed in the soil and used for the in situ monitoring of pore water pressures and total stresses once the development is completed.

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 76-85
  • Monograph Title: Innovations in instrumentation and data acquisition systems
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00668948
  • Record Type: Publication
  • ISBN: 0309055148
  • Files: TRIS, TRB
  • Created Date: Nov 8 1994 12:00AM