Development of the Noncontact Temperature Sensor Using the Infrared Optical Fiber Coated with Antifog Solution

الملخص EN

This study developed a noncontact fiber-optic temperature sensor that can be installed in a spent nuclear fuel pool.

This fiber-optic temperature sensor was fabricated using an infrared optical fiber to transmit the infrared light emitted from water at a certain temperature.

To minimize the decrease in the detection efficiency of the fiber-optic temperature sensor due to vapor generation, its surface was coated by spraying an antifog solution and drying several times.

The measurement data of the fiber-optic temperature sensor was almost linear in the range of 30~70°C.

This sensor could be used as an auxiliary temperature monitoring system in a spent nuclear fuel pool.