Fiber Optic Sensor Linearity
Linearity refers to an important performance characteristic in sensors that measures how well the sensor's output corresponds to its input across a specified range. Hydrocarbon fluids such as oil and natural gas are obtained from a subterranean geologic formation, re-ferred to as a reservoir, by drilling a well that penetrates the hydrocarbon-bearing formation. Once a wellbore is drilled, various forms of well completion components may be installed in. Optical Fiber Displacement Sensors (OFDSs) provide several advantages over conventional sensors, including their compact size, flexibility, and immunity to electromagnetic interference. A fiber optic sensor system includes an optical source to output a first optical signal to launch into an optical fiber, and a coherent detector to mix a coherent Rayleigh backscatter signal generated by the optical fiber in response to the first optical signal with a second optical signal output.
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