Abstract: Systems and methods for extending the range of a fiber optic DTS system are provided. In one respect, a method may provide steps for transmitting, in a first time period, an optical signal at a first energy level through an optical fiber, collecting backscatter signals as a result of the first transmission, adjusting the first energy level to a second energy level, transmitting, in an additional time period, the adjusted optical signal through the optical fiber, collecting backscatter signals as a result of the adjusted transmissions, and using a portion of the collected backscatter as a result of the first transmission and a portion of the collected backscatter as a result of the additional transmissions, determining one or more parameter profiles, such as a temperature profile.
Type:
Grant
Filed:
January 17, 2009
Date of Patent:
December 18, 2012
Assignee:
SensorTran, Inc.
Inventors:
Chung Lee, Kent Kalar, Mahesh Ajgaonkar, Michael Sanders
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