Radiation low-temperature measurement with optical fiber sensor

摘要

Abstract: In this paper the radiation low temperature measurement with the special optical quartz fiber bundle is researched. An end of the optical fiber bundle is circular, another end of the optical fiber bundle is rectangular, for the coupling efficiency between the optical fiber bundle and the target and between the optical fiber bundle and the detector is enhanced. The theory research demonstrates that the radiation power received and guided by the optical fiber bundle does not depend on the directly coupled distances, which makes this thermometer very convenient for using and calibrating. The temperature measurement range 150 degrees Celsius to 600 degrees Celsius is realized at present. !6