Operating Manual V8.2/03.2017
Non Invasive Road Sensor
G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany
35
15.1 Measurement Range / Accuracy
15.1.1 Road Surface Temperature
Measurement process:
Pyrometer
Measuring range:
-40°C ... +70°C
Resolution:
0.1°C
Accuracy:
+/- 0.8°C
Sampling rate:
1 minute
Units:
°C; °F
15.1.2 Water Film Height
Measurement process:
Spectroscopic
Measuring range:
0 ... 2000 µm
Resolution:
0.01 µm
Accuracy:
+/- 0.1 mm +/- 20% of measurement
Sampling rate:
<1 minute
Units:
µm, mil
15.1.3 Ice Layer Thickness
Measurement process:
Spectroscopic
Measuring range:
0 ... 2000 µm
Resolution:
0.01 µm
Sampling rate:
<1 minute
Units:
µm, mil
15.1.4 Freezing Temperature
Measurement process:
Spectroscopic
Measuring range:
-40°C ... 0°C
Resolution:
0.1°C
Sampling rate:
<1 minute
Units:
°C; °F
15.1.5 Ice Percentage
Measurement process:
Spectroscopic
Measuring range:
0% ... 100%
Resolution:
0.1%
Sampling rate:
<1 minute
Units:
%
15.1.6 Saline Concentration
Measurement process:
Spectroscopic
Measuring range:
0% ... 100%
Resolution:
0.1%
Sampling rate:
<1 minute
Units:
%
15.1.7 Snow Height
Measurement process:
Spectroscopic
Measuring range:
0 ... 10mm
Resolution:
0.01mm
Sampling rate:
<1 minute
Units:
mm
15.1.8 Friction
Measurement process:
Spectroscopic
Measuring range:
0 ... 1
Resolution:
0.01
Sampling rate:
<1 minute
