FIELD: testing engineering.
SUBSTANCE: device comprises units of top and bottom clamps, drive for precision control of rotation of the top clamp with respect to the vertical axis, and indicator of breaking down of fiber light guide. The unit of the bottom clamp provides free movement of the bottom clamp in vertical direction and prevents it against rotation with respect to the vertical axis. The units with top and bottom clams are interconnected via the specimen to be tested, and their normal operation is independent of the vertical distance between them. The top clamp is mounted for permitting vertical movement between two equilibrium positions in the unit of the top clamp. The top clamp is in a single equilibrium position until the specimen to be tested is not broken down and moves to the other position of equilibrium when the specimen is broken down.
EFFECT: expanded functional capability.
1 cl, 7 dwg
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