Chapter 12 EMF (EMI) Operation
EMF measurements
9102 Handheld Spectrum Analyzer Software version 5.31
183
time period or integrating the broadband signal power over a given
frequency range, are available. You can compare the recorded
measurement values with the relevant threshold values.
Results can be displayed in logarithmic or linear format, the displayed
range quickly and easily being adapted to the measured signal. The
measured signals can be displayed both graphically and numerically in
logarithmic or linear terms as shown in the following example.
EMF measurements
Electromagnetic fields are usually measured over a defined frequency
range to determine the amount of radiation emitted by certain sources,
such as broadcast stations or mobile phone base stations. Thus,
measurements should be performed on a frequency where radiation is
expected, e.g. on a broadcast or cellular radio frequency. For precise
measurements a frequency-selective receiver with high sensitivity, a
large dynamic range and precise measurements of the field strength is
required. These are the prerequisites for accurate and reproducible
measurement results.
Basically, there are two different measurement approaches in EMF veri-
fication:
– Radiation emission and
– radiation immission
Figure 54 EMF (EMI) measurement
To Next Page
Loading...
