Patent ID: 9606021
Date: 2017-03-28
CPC Classifications: G01D,G01K,G01M

Claim:
1. A method comprising the steps of: a—placing an optical fiber into an initial configuration; b—determining an initial optical frequency domain reflectometry (OFDR) data set including phase information for the optical fiber in the initial configuration; c—placing a first segment of the optical fiber into a predetermined configuration; d—determining a first segment OFDR data set including phase information for the first segment of the optical fiber in the predetermined configuration; e—placing a next segment of the optical fiber into the predetermined configuration, the next segment overlapping a portion of the first segment in the predetermined configuration; f—determining a next segment OFDR data set including phase information for the next segment of the optical fiber in the predetermined configuration; g—matching the first segment OFDR data set with a corresponding first portion of the initial OFDR data set; h—matching the next segment OFDR data set with a corresponding next portion of the initial OFDR data set; i—comparing phase information from matching OFDR data sets for the first and next segments in the overlapping portion of the first segment and the overlapping portion of the next segment to determine a phase difference for the overlapping portions; j—using the phase difference to correct the next segment phase information; k—extending the first segment phase information using the corrected next segment phase information to generate segment correction data, where at least some of the corrected next segment phase information is for a portion of the next segment that does not overlap the first segment; and l—storing the segment correction data.