SYSTEM AND METHOD FOR INSPECTING A STRUCTURE WITH CODA ACOUSTIC WAVES

摘要

The present invention relates to a kind of systems, it is intended to inspection structure (1) coda wave sound wave, by given surface S, can from structural outer, the system comprises. That means that (4) are arranged at acoustically excitation above structure (1) and are formed in the given surface (S) of at least one set of excitation point (Pe1) with the set of ultrasonic pulse; Device (6,7,8) is set as measurement vibration at least three measurement points (plane of clamp PMi is arranged) to given surface S, about ultrasonic pulse during time window; Electronic device (9) is arranged to convey using vibration measurement through the measuring device (6,7,8), in order to define the point (plane of clamp PMi that at least one possible defect (2) of instruction (palladium) described structure uses each measured value of coda wave acoustic signals, the system is characterized in thatIt is arranged to execute in measurement air in measuring device (6,7,8), without contacting (1) with structure. The invention further relates to the systems that corresponding method is realized.