Multicomponent Force Plate for Biomechanics Type 9287C…
5. Operation
5.1 Range Selection
Below are range recommendations for different appli-
cations.
It is important that for every application the smallest possi-
ble range is chosen. This will take full advantage of the
maximum output voltage thus keeping noise and other er-
rors the smallest possible.
Range F
x
, F
y
Range F
z
Balance, Microvibrations 1 1 ... 2
Gait 1 ... 2 1 ... 2
Running 2 ... 3 2 ... 4
Impact 1 ... 4 3 ... 4
Table 4: Guidelines for range selection
5.2 Operate/Reset
A charge amplifier has to be switched from RESET to
OPERATE before applying any force and starting the
measurement. All forces are tared (set to zero) at this
moment).
Reason
A charge amplifier is an integrator which needs resetting
before every measurement. It integrates the charge sup-
plied by the sensor into an output-voltage which is propor-
tional to the applied force.
Exception
Microvibrations can be measured, using the smallest range
of the charge amplifier and taring away the weight of the
subject by switching form RESET to OPERATE after the
subject stands still on the force plate.
Pag
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