| 摘要 |
FIELD: finding of points of preliminary damage in structures. ^ SUBSTANCE: structures are loaded with growing weight and passage of optical signals in points of structures are measured by using light guides, light-emitting diode, optical radiation receiver, V-shaped fiber light guide, photoelectric signal processing unit and measuring device or computer. Structure is tightly fixed by three and more V-shaped fiber light guides in areas of possible arise of cracks. Light guides are disposed at distance of approximately 3 m one from other. Speed of crack's propagation is found from time of break of separate optical fibers and precise point of damage of light guide is found after fact of damage is testified. ^ EFFECT: improved precision of measurement. ^ 2 dwg |
