Formulation of the calibration problems for combined pressure and temperature sensors

It is justified the application of the combined task of fiber Bragg temperature and pressure sensors in complex systems of downhole telemetry based on nonlinear reflectometric effects, as well as in the distribution acoustic sensory systems and pressure measuring points to compensate the temperature changes. The structure of a typical interrogator of fiber Bragg sensors is presented and oppor-tunities to prevent their multiplicative measurement of temperature and pressure are discussed. The task of calibration for the combined sensor is formulated and directions for its solution are defined.

 

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