Gaussmeter IGM11 Operating Instructions
Chapter 5 Operation
Page 32 / 106
MAGSYS
magne t
systeme
Version 01/2013
© 2013 MAGSYS magnet syste
me GmbH - All Rights Reserved.
The error of the fast peak value measurement consists of the error of the DC field
measurement and of a frequency factor that depends on the measuring range.
Error DC Field Measurement
(1
σ
)
B ≤ 1.5 T
≤ ±0.5 %
B ≥ 1.5 T
≤ ±1.0 %
Range-Depending Frequency Response Factor (Sinusoidal Field Pattern)
Frequency
Measuring Range
4500 mT
1000 mT
100 mT
10 mT
50 Hz
1.00
1.00
1.00
0.99
70 Hz
1.00
1.00
0.99
0.98
100 Hz
1.00
1.00
0.98
0.93
200 Hz
1.00
1.00
—
—
500 Hz
0.99
0.99
—
—
700 Hz
0.99
0.98
—
—
1000 Hz
0.98
0.98
—
—
2000 Hz
0.92
—
—
—
The range-depending frequency response factor is multiplied by the basic accuracy,
depending on the respective signal frequencies and then added to the basic
accuracy.
Example:
Measurement in the range of 1000mT with a frequency of 1kHz.
The basic accuracy lies at 0.5%. The frequency response factor is 0.98 = -2%.
During this measurement, you have to calculate a total error of -2%±0.5%.
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