Fiber Optical Sensor for High Temperatures
Frantisek Hanacek, Jan Latal, Petr Koudelka, Jan Skapa, Petr Siska, Vladimir Vasinek, Jan Hurta
DOI:
Abstract
The fiber optic sensors are used in various industries. Advantages of optical sensors are based on the benefits of fiber and partially profit at their technological advances. The fiber optic temperature sensors are based on more than one way of scanning, all reach the upper scanning limit of about 600 °C. This article aims to introduce the principle of the sensor based on black body radiation. This type of sensor is difficult to specify precisely, it can not be easily classified into groups of intensity sensors or radiation sensors. At lower temperatures, it could be classified into intensity sensors, but at higher temperatures occurs to its own radiation of photons inside the fiber.