Hardness tester
AssigneeMitutoyo Corporation
InventorsTakeshi Sawa, Fumihiko Koshimizu
Life of this patent
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Abstract
A hardness tester forms an indentation on a surface of a sample by loading a predetermined test force with an indenter and measures a hardness of the sample using the indentation. The hardness tester includes a light source emitting light on the surface of the sample and forming an illumination pattern having a spot; and a controller forming the indentation by bringing the indenter into contact with the sample in a state where a perpendicular line of a vertex of the indenter overlaps a test point when the position of the spot of the illumination pattern formed by the light source on the surface of the sample is used as the test point.
Claims12
A hardness tester for forming an indentation on a surface of a sample by loading a predetermined test force with an indenter, and measuring a hardness of the sample using the indentation, the hardness tester comprising:
- an illuminator configured to emit light on the surface of the sample and form an illumination pattern having a spot;
- and
- a controller configured to form the indentation by bringing the indenter into contact with the sample in a state where a perpendicular line of a vertex of the indenter overlaps a test point when the position of the spot of the illumination pattern formed by the illuminator on the surface of the sample is used as the test point.
Dependencies are inferred from the claim text.