Datasheet

SCA100T Series
VTI Technologies Oy Subject to changes 8/18
www.vti.fi Doc. nr. 8261800 Rev.A
)100/1(* ScorrSENSSENScomp +
=
0408.0*0022.0*00011.0
2
++−= TTScorr
Temperature dependency of externally compensated
SCA100T sensitivity
-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]
sensitivity error [%]
Average
+3 sigma
-3 sigma
Temperature dependency of externally compensated
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
The equation of fitted 2
nd
order polynome curve for sensitivity compensation is:
Where:
Scorr: 2
nd
order polynome fitted to average sensitivity temperature dependency curve
T temperature in °C
The calculated compensation curve can be used to compensate the temperature dependency of
the SCA100T sensitivity by using following equation:
Where:
SENScomp temperature compensated sensitivity
SENS Nominal sensitivity (4V/g SCA100T-D01, 2V/g SCA100T-D02)
The typical offset and sensitivity temperature dependency after external compensation is shown in
the pictures below.
Figure 6. The temperature dependency of an externally compensated SCA100T offset
Figure 7. The temperature dependency of an externally compensated SCA100T sensitivity