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4.5.5 Room temperature measurement
4.5.5.1 Normal force
Analog Input 0
→
high temperature normal force
Due to the different geometries with the room temperature force module installed, the strain gauges
measuring bridge has another characteristic curve for the normal force.
The corresponding load of the output voltages (carrier frequency amplifier) are measured with the
already calibrated room temperature force module and calculated with its characteristic linear function.
Carrier frequency amplifiers channel 3 settings for calibration:
•
Set the basic parameter of the measuring range to 0.5 mV/V
characteristic curve Fn room temperature
200.00
180.00
160.00
140.00
Fn [N]
120.00
100.00
80.00
60.00
40.00
20.00
-1.000
0.00
0.000
1.000
2.000
3.000
4.000
5.000
U [V]
measured normal force
calculated normal force(Fn = 36.80005 * U + 3.99248)
Ill. 36: Characteristic curve high temperature normal force, with room temperature force module
Damian Frey
Simon Wüest
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High-Temperature Tribometer