| 摘要 |
<p>A hardness tester 100 and a hardness testing method including a focuser 4, 5, an image capturer 12, a test position setter 61, a focus position memory 61, an indentation creator 61, an image capture controller 61, and a measurer 61. The focuser 4, 5 focuses on the surface of the specimen S. The image capturer 12 captures an image of the surface of the specimen S through one of a first field lens 15a and a second field lens 15b. The test position setter 61 sets a test position at which the indentation is formed based on image information captured through the second field lens 15b. The focus position memory 61 measures a focus position through the first field lens 15a at a predetermined test position among the set test positions, then associates the focus position with a test position within a predetermined range and stores the information in a memory 63. The indentation creator 61 forms the indentation at the test position with the indenter 14a. The image capture controller 61 displaces the specimen S based on the test position and the focus position, then captures an image of the formed indentation through the first field lens 15a. The measurer 61 measures the hardness of the specimen S based on the indentation whose image has been captured.</p> |
