Fiber optic geophysical sensors

Patent Application · Mon Dec 31 00:00:00 EST 1990

OSTI ID:10104864

Homuth, E F

This invention is comprised of a fiber optic geophysical sensor in which laser light is passed through a sensor interferometer in contact with a geophysical event, and a reference interferometer not in contact with the geophysical event but in the same general environment as the sensor interferometer. In one embodiment, a single tunable laser provides the laser light. In another embodiment, separate tunable lasers are used for the sensor and reference interferometers. The invention can find such uses as monitoring for earthquakes, and the weighing of objects. 2 figs.

• Research Organization: Los Alamos National Lab., NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• Assignee: Dept. of Energy
• Patent Number(s): PATENTS-US-A7506741
• Application Number: ON: DE92003875; PAN: 7-506,741
• OSTI ID: 10104864
• Resource Relation: Other Information: PBD: 1990
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
58 GEOSCIENCES
MONITORS
DESIGN
GROUND MOTION
MONITORING
WEIGHT INDICATORS
INVENTIONS
EARTHQUAKES
FIBER OPTICS
LASERS
440800
440600
580000
MISCELLANEOUS INSTRUMENTATION
OPTICAL INSTRUMENTATION
GEOSCIENCES