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Introduction
HardnessTM v2.1 can be used with any hardness tester to acquire
static hardness measurements automatically. Once acquired, these data can be
displayed in tabular or graphical form, printed, statistically analyzed, and
converted to various hardness scales.
System Features
The software is compatible with any hardness tester
equipped with an RS232 communications port. The default software configuration
will work with most testers, but custom settings can be adjusted as required.
ASTM E 140 Scale Conversion
The measured data can be converted automatically to any
scales provided in ASTM E 140. Figure 1 shows Rockwell C (HRC) measurements
being converted to Vickers hardness (HV) as the Rockwell C data are acquired.
The mean, standard deviation, and min/max data are updated as the measurements
are made. In addition, the software can be used to convert previously
measured or published data.
Figure 1 - Acquire: Data Collection Tab
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GRaphical
Display
Both the base and conversion scales can be displayed
graphically (Figure 2). The user controls the upper and lower sigma bands (ex.,
2 sigma or 3 sigma level) that are displayed on the graph.
Figure 2 - Graphical Display of the Base and
Conversion Scales |
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