Measurement methods
The SMP3 + any of the selective field probe (WP400, WP400-3, WP10M or
WPH-DC) combination allows you to choose any of 3 measurement methods.
1. Broadband measurement
Broadband measurements may be made of the electric field (E) and the
magnetic field (H). In this case, the device takes the full spectrum into
account, measuring all the energy present within the 1 Hz to 400 kHz
frequency range range (up to 40 kHz for the WPH-DC probe or up to 10 MHz
for the W10M probe). The result is a single value in
units of electric field intensity or magnetic flux density, for aggregate exposure
across the full range.
The “MEASUREMENT OPTIONS” menu is used to select the measurement time, the
log interval, the average interval and the average type, as shown in the figure below
(screenshot 1A). Please note that in low frequency, the Quick Setup is not available
and the average interval is not important as limits are based on instant values.
Spatial averages may also be made using the “Spatial average” option.
Screenshot 1A Screenshot 1B Screenshot 1C
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