Hardness tester including a force gage for measuring the force e

Details Hardness tester including a force gage for measuring the force e Hardness tester including a force gage for measuring the force e

1990-12-07

1994-04-26

Williams, Hezron E.

Measuring and testing

Hardness

By penetrator or indentor

G01N 342

Patent

active

053056337

ABSTRACT:
A hardness tester includes an indentor which is mounted to a linearly guided carrier movably supported in a frame, with a linkage mechanism being attached to the carrier for transmitting the load onto the indentor. Interposed within the linkage mechanism is a force gage which converts the force exerted thereupon into an electric variable and is operatively connected to a comparator circuit by which the electric variable generated in the force gage is compared with a preset, selectable desired value. The comparator circuit includes an output which controls a drive unit which in turn is connected to the linkage mechanism by which the load upon the indentor is exerted.

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