G - Physics
01
N
73/91
G01N 3/40 (2006.01) G01N 3/42 (2006.01) G01N 3/00 (2006.01) G01N 3/06 (2006.01)
Patent
CA 2031662
ABSTRACT OF THE DISCLOSURE 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 lever 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.
Brutmann Karl
Weissenbacher Herbert
Emco Maier Gesellschaft M.b.h.
Gowling Lafleur Henderson Llp
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