Health-monitoring system of distributed sensing fiber tunnel
A technology of health monitoring system and sensing optical fiber, which is applied in the direction of measuring device, adopting optical device, and measuring the change force of optical properties of the material when it is stressed, can solve the problem of short time
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[0032] The distributed sensing optical fiber tunnel health monitoring system of the present invention includes sensing optical fibers arranged in the tunnel and a processing system for collecting and processing sensing optical fiber data.
[0033] Treatment systems include:
[0034] a) The data acquisition system has the function of real-time acquisition of strain and temperature;
[0035] b) BOTDA fiber analyzer (DITEST STA-R type BOTDA of Omnisens Company), which is used to emit laser signals, acquire optical signals and obtain structural strain and temperature information.
[0036] c) Data processing and health diagnosis system for real-time analysis and storage of strain data and diagnosis of tunnel health;
[0037] According to the geological survey report, the length of the V-level surrounding rock of the tunnel in this embodiment is about 150m. In order to realize the comprehensive monitoring of the overall deformation of the tunnel, the longitudinal sensing fiber and t...
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