Patent ID: 7424822
Filing Date: 2008-09-16
Classification: G01N

Abstract:
1. A micro-hardness measurement method for calculating the hardness by pushing an indenter in a test sample and forming an indentation, comprising: extracting load data showing the a relationship between load L applied to the indenter and a depth δ, to which the indenter is pushed in from a surface of the test sample, to a maximum load L extracting unloading data showing a relationship between the load L applied to the indenter after the load is unloaded and the depth δ; judging, by comparing the unloading data with the load data, whether or not a load fluctuation amount from the maximum depth δ judging, when it is judged that the load fluctuation amount is within the first permissible range, whether or not the load at the depth δ calculating a virtual depth δ calculating the hardness based on the virtual depth δ