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Sensor system that uses embedded optical fibers

United States Patent

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December 25, 2018
View the Complete Patent at the US Patent & Trademark Office
Embedded Fiber Optic Sensors (EFOS)
Sensor systems including an interferometer system are disclosed herein. In a general embodiment, the sensor system includes an optical fiber that is embedded into a sample, where the optical fiber has a reflective tip. The optical fiber is optically coupled to a sensor and a detector of the laser interferometer system. The sensor system further includes a computing device or circuit that is configured to receive electrical signals generated by the detector. The laser source is configured to emit light, which is coupled into the optical fiber. The light travels through the optical fiber until the light reaches the reflective tip, where it is reflected back through the optical fiber. The detector is impacted by the reflected light, and generates an electrical signal based upon the reflected light. The computing device generates a value that is indicative of a behavior of the sample based upon the electrical signal.
January 19, 2015
G01N 21/01 (20060101); G01N 33/22 (20060101); G01D 5/26 (20060101); G01N 21/17 (20060101); G01N 21/45 (20060101); G01P 3/36 (20060101);
;422/82.05,82.06,82.09,82.11 ;436/43,164 ;356/450,477
STATEMENT OF GOVERNMENTAL INTEREST This invention was developed under Contract DE-AC04-94AL85000 between Sandia Corporation and the U.S. Department of Energy. The U.S. Government has certain rights in this invention.