Datasheet

SCA100T Series
VTI Technologies Oy Subject to changes 7/18
www.vti.fi Doc. nr. 8261800 Rev.A
Temperature dependency of SCA100T offset
-1
-0.8
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0.8
1
-40 -20 0 20 40 60 80 100 120
Temp [°C]
offset error [degrees]
Average
+3 sigma
-3 sigma
specification limit
specification limit
Temperature dependency of SCA100T sensitivity
-2.50
-2.00
-1.50
-1.00
-0.50
0.00
0.50
1.00
-40 -20 0 20 40 60 80 100 120
Temp [°C]
sensitivity error [%]
Average
+3 sigma
-3 sigma
specification limit
specification limit
OffcorrOffsetOFFSETcomp −=
0522.0*0039.0*0001.0*0000006.0
23
−−+−= TTTOffcorr
Figure 4. Typical temperature dependency of SCA100T offset
Figure 5. Typical temperature dependency of SCA100T sensitivity
1.8.1 Additional External Compensation
To achieve the best possible accuracy, the temperature measurement information and typical
temperature dependency curves can be used for SCA100T offset and sensitivity temperature
dependency compensation. The equation of fitted 3
rd
order polynome curve for offset
compensation is:
Where:
Offcorr: 3
rd
order polynome fitted to average offset temperature dependency curve
T temperature in °C (Refer to paragraph 2.7 Temperature Measurement)
The calculated compensation curve can be used to compensate the temperature dependency of
the SCA100T offset by using following equation:
Where:
OFFSETcomp temperature compensated offset in degrees
Offset Nominal offset in degrees