HARDNESS TESTER AND METHOD FOR CORRECTING MACHINE BODY DISTORTION IN HARDNESS TESTER

摘要

PROBLEM TO BE SOLVED: To provide a hardness tester capable of eliminating the influence by the distortion of a machine body even if eliminating a contactor to keep the measurement precision and a method for correcting the machine body distortion in this hardness tester. ;SOLUTION: This hardness tester is provided with a force generation part 2 for generating a force; a force transmission part 3 for transmitting the force generated in the force generation part 2 to an indenter 41; and a push-in quantity measuring means (6: push-in quantity measurement part) for measuring the push-in quantity when pushing the indenter with the transmitted force into a sample placed on a sample table 20a on the basis of the displacement of the indenter 61 and having a fixed measurement origin. This tester comprises a push-in quantity correcting means (10: push-in quantity correction part) for correcting the distortion of a machine body 20 including the sample table 20a caused according to the force transmitted through the indenter 61 in the measurement of push-in quantity from the push-in quantity measured by the push-in quantity measuring means 6.;COPYRIGHT: (C)2001,JPO