Hardness tester and program
AssigneeMitutoyo Corporation
InventorsKoji Shinza, Fumihiko Koshimizu
Life of this patent
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Abstract
A hardness tester includes an image acquirer (controller) acquiring an image of a surface (surface image) of a sample captured by an image capturer, an identifier (controller) identifying, based on the surface image of the sample, a non-conformity region inside the image that is unsuitable for the hardness test using predetermined conditions, and a test position definer (controller) defining a test position in an area outside the non-conformity region identified by the identifier.
Claims14
A hardness tester that measures hardness of a sample by loading a predetermined test force on a surface of the sample with an indenter to form an indentation in the surface of the sample, and measuring dimensions of the indentation, the hardness tester comprising:
- a processor and a memory that stores a set of executable instructions, wherein upon execution of the executable instructions by the processor, the hardness tester operates as:
- an image acquirer that acquires an image of surface of the sample captured by an image capturer;
- an identifier that identifies, based on the image of the surface of the sample, a non-conformity region inside the image that is unsuitable for the hardness test, using predetermined conditions;
- and
- a test position definer that defines a test position in an area outside the non-conformity region identified by the identifier.
At least one tangible, non-transitory computer-readable medium storing an executable set of instructions for measuring hardness of a sample by loading a predetermined test force on a surface of the sample with an indenter to form an indentation in the surface of the sample and measuring dimensions of the indentation, wherein the set of instructions, when executed by a computer processor, causes the computer processor to execute operations comprising:
- acquiring, via an image acquirer, an image of the surface of the sample captured by an image capturer;
- identifying, via an identifier and based on the image of the surface of the sample, a non-conformity region inside the image that is unsuitable for the hardness test using predetermined conditions;
- and
- defining, via a test position definer, a test position in an area outside the non-conformity region identified by the identifier.
A method for measuring hardness of a sample by loading a predetermined test force on a surface of the sample with an indenter to form an indentation in the surface of the sample and measuring dimensions of the indentation, the method comprising:
- acquiring, via an image acquirer, an image of the surface of the sample captured by an image capturer;
- identifying, via an identifier and based on the image of the surface of the sample, a non-conformity region inside the image that is unsuitable for the hardness test using predetermined conditions;
- and
- defining, via a test position definer, a test position in an area outside the non-conformity region identified by the identifier.
Dependencies are inferred from the claim text.