公开(公告)号：US4147052A

公开(公告)日：1979-04-03

申请号：US825398

申请日：1977-08-17

申请人： Junpei Tsujiuchi ,  Toshio Honda ,  Hiroshi Okuda

发明人： Junpei Tsujiuchi ,  Toshio Honda ,  Hiroshi Okuda

IPC分类号： G01N3/00 ,  G01N3/06 ,  G01N3/42

CPC分类号： G01N3/42 ,  G01N2203/0098 ,  G01N2203/0647

摘要： A hardness tester has an image sensor and a detecting system. The image sensor has aligned plurality photoelectric sensor elements on an image plane on which a bright and dark image of an indentation is formed through an optical system. The detecting system detects the diagonal length of the indentation by using the differences in amplitude of the output signals developed by the sensor elements in the vicinity of the ends of the indentation image.

摘要翻译： 硬度计具有图像传感器和检测系统。 图像传感器在通过光学系统形成凹陷的明暗图像的图像平面上对准多个光电传感器元件。 检测系统通过使用传感器元件在压痕图像的端部附近产生的输出信号的幅度差来检测压痕的对角线长度。