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Industrial Gaussmeter IGM11 Operating Instructions
Chapter 5 Operation
The frequency response factor and shape factor are multiplied with the basic accuracy
in dependence of the respective measuring parameters, and then added to the basic
accuracy.
Example:
Measuring B
The basic accuracy is 0.5 %. The frequency response factor is 0.9. The shape factor is
1.02.
The error from these factors is 0.95 · 1.02 = 0.97 ≙ −3 %
For the measurement you have to calculate a total error of −3 % ± 0.5 %.
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Error DC Field Measurement
B ≤ 1.5 T
B ≥ 1.5 T
Frequency Response Factor (Sinusoidal Field Pattern)
Frequency
2 kHz
5 kHz
7 kHz
10 kHz
Shape Factor (Sinusoidal Field Pattern)
Field Strength B
700 mT
1000 mT
1500 mT
2000 mT
= 1000 mT at a frequency of 5 kHz.
eff
(1σ)
≤ ±0.5 %
≤ ±1.0 %
Factor
1.00
0.98
0.95
0.90
Factor
eff
1.00
1.01
1.02
1.03
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