Indentation hardness tester

Details Indentation hardness tester Indentation hardness tester

1992-04-08

1994-02-08

Raevis, Robert

Measuring and testing

Hardness

By penetrator or indentor

G01N 342

Patent

active

052840492

ABSTRACT:
In an indentation hardness tester a specimen placed on a specimen table is brought to a position just under an indenter mounted on one free end of a balance having its fulcrum received by a fulcrum bearing member, the balance is turned about the fulcrum by a test load to make an indentation in the specimen by the indenter and then the size of the indentation is measured through a microscope including an objective lens. The fulcrum bearing member for receiving the fulcrum of the balance is vertically movably mounted on a stationary part so that the indenter mounted on the balance is brought up from or down to a position right above the specimen table in close proximity thereto, and the microscope or at least its objective lens is pivotally mounted on the stationary part so that the objective lens turns to or turns away from a position right above the specimen table.

REFERENCES:
patent: 2357856 (1944-09-01), Tate
patent: 3365937 (1968-01-01), Miserocchi

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