Overview of Fiber Optic Sensors phần 3 ppsx

... Distributed Sensing Many of the intrinsic and extrinsic sensors may be multiplexed [45] offering the possibility of large numbers of sensors being supported by a single fiber optic line. The techniques that ... the optical fiber. Glass Fiber Primary Coating Secondary Compliant Coating Pressure Figure 38 . Coatings can be used to optimize the sensitivity of fiber sensor...

Ngày tải lên: 06/08/2014, 00:21

... index of refraction of the core and cladding of the optical fiber. The amount of light captured by the second optical fiber depends on its acceptance angle and the distance d between the optical fibers. ... the next section a series of spectrally based fiber sensors that have this characteristic are discussed. Spectrally Based Fiber Optic Sensors Spectrally based fiber...

Ngày tải lên: 06/08/2014, 00:21

... instrument packages [34 ]. Interferometeric Fiber Optic Sensors One of the areas of greatest interest has been in the development of high performance interferometeric fiber optic sensors. Substantial ... index respectively. Pressure Temperature Refractive Index of Liquids Multimode Fibers Figure 25. Hybrid etalon based fiber optic sensors often consist of micromachi...

Ngày tải lên: 06/08/2014, 00:21

... 2085, 19 93. 47. A. Katzir, Editor, Optical Fibers in Medicine VIII, Proceedings of SPIE, Vol. 18 93, 19 93. 48. F. P. Milanovich, Editor, Fiber Optic Sensors in Medical Diagnostics, Proceedings of SPIE, ... Udd, editor, Fiber Optic Sensors, Proceedings of SPIE, CR-44, 1992. 7. S. K. Yao and C. K. Asawa, Fiber Optical Intensity Sensors, IEEE J. of Sel. Areas in Commun...

Ngày tải lên: 06/08/2014, 00:21

... 1547.72 1 93. 7 1 530 .33 195.9 1548.51 1 93. 6 1 531 .12 195.8 1549 .32 1 93. 5 1 531 .90 195.7 1550.12 1 93. 4 1 532 .68 195.6 1550.92 1 93. 3 1 533 .47 195.5 1551.72 1 93. 2 1 534 .25 195.4 1552.52 1 93. 1 1 535 .04 ... 1 535 .04 195 .3 15 53. 33 1 93. 0 1 535 .82 195.2 1554. 13 192.9 1 536 .61 195.1 1554. 93 192.8 1 537 .40 195.0 1555.75 192.7 1 538 .19 194.9 1556.55 192.6...

Ngày tải lên: 06/08/2014, 00:21

... Devices are available at both the 131 0-nm and 1550-nm wavelengths. F UNDAMENTALS OF P HOTONICS 33 2 © 2000 University of Connecticut Figure 8 -32 Fiber optic loss budget B. Bandwidth and ... –5 = (1 mW) × 10 = 3. 16 × 10 mW = 31 .6 nanowatts P for a probability of error of 1 in 10 9 . F IBER O PTIC T ELECOMMUNICATION © 2000 University of Connecticut 32...

Ngày tải lên: 06/08/2014, 00:21

... approximately 3& quot; of the fiber jacket in the middle of the fiber (see Figure 8- 43) . F UNDAMENTALS OF P HOTONICS 34 2 © 2000 University of Connecticut Problem Exercises/Questions 1. A fiber of ... the fibers are matched to the proper fibers in the mated connector (Figure 8 -33 a). (a) (b) Courtesy of Siecor, Inc. Figure 8 -33 (a) SC connector (b) ST...

Ngày tải lên: 06/08/2014, 00:21

... S 1 S 2 C 1 C 2 S 4 C 4 C 3 S 3 S 1 S 2 C 1 C 2 S 4 C 4 C 3 S 3 S 1 S 2 C 1 C 2 S 4 C 4 C 3 S 3 S 1 S 2 C 1 C 2 S 4 C 4 C 3 S 3 (a) S 1 S 2 C 1 C 2 S 4 C 4 C 3 S 3 S 1 S 2 C 1 C 2 S 4 C 4 C 3 S 3 S 1 S 2 C 1 C 2 S 4 C 4 C 3 S 3 S 1 S 2 C 1 C 2 S 4 C 4 C 3 S 3 S 1 S 2 C 1 C 2 S 4 C 4 C 3 S 3 S 1 S 2 C 1 C 2 S 4 C 4 C 3 S 3 ... vol. 2, pp. 33 7 -33...

Ngày tải lên: 06/08/2014, 00:21

... 802 .32 (Gigabit Ethernet) ix 285 287 292 291 2 93 31 0 32 0 33 2 33 3 33 3 33 5 33 8 33 9 33 9 34 1 34 2 34 4 34 6 34 8 34 8 35 2 35 3 35 6 36 1 36 3 36 3 36 7 36 7 36 9 37 0 37 0 37 4 ... 699 699 699 70 1 7 03 715 730 732 735 737 738 740 74 1 744 754 759 778 8 03 2. Optical Sources: Light-Emitting Diodes and Laser Technol...

Ngày tải lên: 18/04/2014, 10:57

... types of fiber optic sensors being developed are briefly reviewed followed by a discussion of how these sensors are and will be applied. 1.2 BASIC CONCEPTS AND INTENSITY-BASED FIBER OPTIC SENSORS Fiber ... SPECTRALLY BASED FIBER OPTIC SENSORS Spectrally based fiber optic sensors depend on a light beam modulated in wavelength by an environmental effect. Examples of th...

Ngày tải lên: 27/05/2014, 02:44