SCA100T 查看數據表（PDF） - Murata Manufacturing
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SCA100T Datasheet PDF : 17 Pages
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SCA100T Series
Temperature dependency of SCA100T offset
1
specification limit
0.8
0.6
0.4
0.2
Average
0
+3 sigma
-0.2
-3 sigma
-0.4
-0.6
-0.8
specification limit
-1
-40 -20
0
20
40 60 80 100 120
Temp [°C]
Figure 4. Typical temperature dependency of SCA100T offset
Temperature dependency of SCA100T sensitivity
1.00
specification limit
0.50
0.00
-0.50
-1.00
-1.50
Average
+3 sigma
-3 sigma
-2.00
-2.50
specification limit
-40 -20
0
20 40 60 80 100 120
Temp [°C]
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 3rd order polynome curve for offset
compensation is:
Offcorr 0.0000006*T 3 0.0001*T 2 0.0039*T 0.0522
Where:
Offcorr:
T
3rd order polynome fitted to average offset temperature dependency curve
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:
OFFSETcomp Offset Offcorr
Where:
OFFSETcomp
Offset
temperature compensated offset in degrees
Nominal offset in degrees
Murata Electronics Oy
www.muratamems.fi
Subject to changes
Doc. nr. 8261800
7/17
Rev.B2
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