Buehler Wilson VH3100, Руководство по настройке

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Imagine installing a spare indenter or
switching between Vickers and Knoop
without any alignment effort. This is
achievable with the optional Snap-grip
on the Wilson VH3100 as each indenter
is prealigned in its own snap-grip holder.
Changing indenters is simplified as it
can be changed in seconds without
the need for tools, set-up or alignment
verification. Fast, precise, and reliable testing with
a sophisticated closed-loop electronic
force measuring system and high
precision “in-line” load application
mechanics. With all critical parts on
one axis and a minimization of moving
parts, this closed loop control prevents
load overshoot from happening, while
compensating for friction and wear over
time.
Snap Grip Closed Loop Load Control Overshoot protection
√ √ √ VH3100
√ √ VH3300
Unintentional external influences during
the indent process result in a shock,
which often is too major for the closed
loop system to compensate for. These
occurances would result inaccurate
hardenss readings.
The built-in overshoot protection
detects load overshoots and aborts
the indent process when the maximum
test load is exceeded. By doing so, soft
readings caused by load overshoots are
a thing of the past.
For
ce
Time
Nominal Load Level
Precise Loading-Closed Loop
Load Error - Deadweight