The utility model relates to a nondestructive inspection instrument designed to measure the strength properties of solid materials by application of mechanical forces, in particular by measuring the nature of the striker rebound from the surface of the measured products. Using the claimed utility model enables measurements with an arbitrary spatial position sensor.; The claimed Hardness Leeb comprises a housing with an opening in which a movable striker is mounted in the housing of the striker speed sensor connected with the electronic unit, and is characterized in that the main body hardness is set accelerometer associated with the electronic unit. Accelerometer to determine the spatial position and hardness compensate errors associated with non-verticality of the device by calculation.
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