FIELD: non-destruction flaw detection, namely evaluation of damages of single-axis constructions with use of free elastic oscillations.
SUBSTANCE: apparatus includes unit for fixing local zones of constructions in the form of bracket that may move along construction and that may be rigidly secured to ends of local zone; elastic oscillation detector. Elastic ferromagnetic plate is placed between bracket and construction. Lengthwise axis of said plate is normal relative to axis of construction. One end of plate is fastened by cantilever fashion on bracket; its other end being in free elastic contact with construction may be moved relative to it. Elastic oscillation detector is in the form of cylindrical reel secured to bracket and embracing concentrically said ferromagnetic plate.
EFFECT: enhanced responsibility and efficiency of testing, lowered risk of construction damage during testing process.
2 dwg
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