Study on leakage monitoring based on FBG temperature-sensing technology joint with resistivity method

This paper develops the Fiber Bragg Grating temperature monitoring instrument according to the principle of Fiber Grating sensor, and also develops the resistivity monitoring instrument according to the principle of charging method; Introduced the Fiber Bragg Grating temperature-sensing technology into the groundwater leakage monitoring, and use the Fiber Bragg Grating temperature monitoring instrument joint with resistivity monitoring instrument in groundwater leakage monitoring simulation test. The result indicates that the instruments which independent research and development stable and reliable, and they can clearly and accurately reflect the process of groundwater leakage. Finally, this paper presents a field leakage monitoring experiment with the two monitoring instruments, and simple analysis of the monitoring results.