Hardness meter and hardness measuring method

摘要

Problem to be solved: to provide a hardness meter for estimating the hardness stably regardless of the compressive strength.Movable part pressed continuously to the object to be measured and movable part in the object to be measuredA sensor which outputs an output signal which reflects the reaction force at the contact part with a moving part and piston movingBased on the alternating current component of the output signal generated by the piston motion of the moving partA hardness meter characterized by providing a hardness estimating part for estimating the hardness of the object to be measured.Diagram