6. Operation
Projekt Elektronik
MESS - UND REGELUNGSTECHNIK GMBH
Page 70
temperatures. These three curves serve to determine the deviation of the
measuring instrument for specific field strength and temperature readings so
as to correct the field values displayed. So a measurement accuracy of
0.1% is achievable.
Each AS-active-probe have its own individual linearity curve. If an AS-probe
is replaced, the linearity curve have to be renewed too.
Examples of typical linearity curves can be found at our application note
PE003 – zero chamber.
The linearity curve serves as a test record.
The following illustration shows an exemplary set of linearity curves:
Figure 57 Typical linearity curves
-25
-20
-15
-10
-5
0
5
10
15
20
25
2
1
0
-1
-2
∆
B
[ mT ]
B
[ T ]
0,2 %
±0,2 mT
0°C
20°C
40°C