Expansion of measuring range for a fiber-optic distributedtemperature sensor and applications to commercial plants

摘要

To expand the range of applications for fiber-optic distributedtemperature sensors based on Raman scattering, an optical fiber andmeasuring device capable of measuring temperatures in high temperatureenvironments were produced, making it possible to measure temperaturedistributions at temperatures of up to 500° C. This sensor is used ina steel works to measure the temperature of the steel shell of a hotstove and to detect potential molten steel leaks in the continuouscasting tundish