Fig. 1. Distributed fiber Raman temperature measurement schematic diagram

Fig. 2. Acid self-sensing special cable structure

Fig. 3. Sheath material tensile strength

Fig. 4. A distributed optical fiber temperature measuring system for detecting the leakage of acid solution pipeline

Fig. 5. Simulation test equipment for acid solution leakage detection

Fig. 6. Time curve of temperature change at the leakage point