| 摘要 |
PURPOSE:To allow one detector to take a centralized multiple-object measurement of temperature by providing plural input/output optical fibers circularly, rotating and coupling a flection optical fiber with said optical fibers, and facing the other terminal to an output optical fiber. CONSTITUTION:When the multiple-object measurement of temperature is taken, respective tips of input optical fibers 1 are confronted to respective objects of temperature measurements and the other-side terminals are provided circularly to a plate 2 for attachment at equal intervals. The flection optical fiber 4 has an output-side straight part 6 rotated around an axis L of rotation. The input-side straight part 5 of the fiber 4 is flexed through a slanting part 4. The tip of the straight part 5 while coupling optically with the optical fibers 1 rotates over the end surface 3 of the disk 2 at an interval which causes no loss. Therefore, a rotation driving device is stopped at every specific angle for a specific time and at this time, the input optical fiber 1 arrayed on the disk for attachment faces the tip of the optical fiber 4 optically without any coupling loss; and the detector 8 coupled with the output optical fiber 7 reads data and outputs its value 9. |
