Wading building health perception distributed fiber calibration system and method

Abstract

The invention discloses a wading building health perception distributed fiber calibration system and method; the wading building health perception distributed fiber calibration system comprises a heat insulation barrel, and a plurality of calibration modules positioned around an axis in the heat insulation barrel; the calibration module comprises a through shaft, a first electronic thermometer and a second electronic thermometer; the through shaft is winded by a calibrated cable connected with a fiber temperature demodulator outside the heat insulation barrel; the first and second electronic thermometers are respectively connected with a first temperature control meter and a second temperature control meter outside the heat insulation barrel; a temperature source heater used for heating the water in the heat insulation barrel is arranged in a barrel wall of the heat insulation barrel, and connected with a power temperature control meter outside the heat insulation barrel; the first temperature control meter is simultaneously connected with a cooling heating device through a first temperature control meter line. The wading building health perception distributed fiber calibration system uses the cooling heating device to flexibly control temperature changes in the heat insulation barrel, thus realizing high precision calibration for the long distance cable in a single time.

Description

technical field

[0001] The health-aware distributed optical fiber calibration system and method for water-related buildings according to the invention belong to the field of water conservancy and hydropower engineering safety. Background technique

[0002] For dams, dikes, sluices, aqueducts, culverts, channels and other water-related structures, rapid and reliable monitoring of structural health is of great significance for timely detection of safety hazards and ensuring their safe service. With the development of distributed optical fiber sensing technology, it has become an important research direction in the fields of water conservancy, civil engineering and other engineering safety by using it to obtain structural behavior information and perceive structural health. Valuable practical experience. However, in the actual application of wading buildings, due to the particularity of the working environment and structural characteristics, many technical problems such as opt...

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