Światło białe jako medium w pomiarze temperatury

W artykule opisano szczególną aplikację termometru światłowodowego w warunkach produkcyjnych. Weryfikację dokładności i czasu reakcji sondy na wymuszenie poprzedzają podstawy termometrii tego rodzaju. Wnioski dotyczą możliwości stosowania tej rzadko spotykanej metody wraz z komentarzem parametrów technicznych urządzeń i wskazaniem potencjalnych aplikacji.

Visible light, considered as an electromagnetic wave of 400 - 700 nm length, is becoming a useful medium in measuring techniques dominated by contact and non-contact systems based on infrared radiation emission. The first part of this paper describes the method (Fig. 1) and its basics [1, 2, 8] as well as the system classification [6, 7]. There are presented some fiber-optic thermometers [3, 4, 5] and available sensors (Fig. 2) as well as the possibility of signal capture from many sources. The measurement accuracy was verified (Figs. 3, 4, 5), then the method usefulness was characterized when considering hard industry conditions, in which specific points are hard to reach and electromagnetic fields may occur. Finally, a laboratory experiment was carried out and its results were compared with those obtained from a real industry application (6), located in a factory of the Polish inductive plates producer. The project assumed temperature measurement in situ during heating and this postulate was achieved thanks to the producer kindness. The next part refers to other possibilities that measuring instruments based on fiber optic technique can offer [9]. Efforts were con-centrated on those fields In which other devices cannot be used, just to show the unique character of the process based on visible light. The conclusion presents some plans for the future research on fiber optic measuring technique. Its weaknesses are described as points for elimination. There is also emphasized the useful character of those system. The possible field of application is shown.