Intrinsically Self Deforming Fiber Optic Microbend Pressure and Strain Sensor.

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Abstract:

The present invention relates to a sensor for measuring pressure and strain. The sensor is formed by an optical fiber having at least one section where in the fiber is twisted about itself. The at least one twisted section acts as an intrinsically self deforming microbend deformer. The sensor further includes a source of light attached to a first end of the fiber and a power meter for measuring the amount of light lost in the at least one section. The optical fiber may have multiple twisted sections with different twist pitches and thus different sensitivities. In an alternative embodiment, the sensor may have two optical fibers twisted about each other.

Author(s):
Sansone, Louis E.
Author Organization(s):
DEPARTMENT OF THE NAVY WASHINGTON DC
Descriptive Note:
Patent Application, Filed 19 Jun 95,
Pagination:
0014

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
PAT-APPL-491 692
Monitor Series:
SEC/NAV
 Subject Terms
Joint Capability Areas:
JCA_4.6.1_General Engineering; JCA_4.6_Engineering
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*FIBER OPTICS, *PATENT APPLICATIONS, *STRAIN GAGES, MEASUREMENT, PRESSURE, MICROMECHANICS, POWER METERS
Field(s)/Group(s):
Fiber Optics and Integrated Optics
Report Date:
1995 Jun 19
Creation Date:
1996 Jul 25