Rohde & Schwarz R&S UPP, Руководство пользователя

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Instrument Functions
R&S
®
UPP
361 User Manual 1411.1055.32 ─ 10
5.21.2 RMS Measurement, Broadband
Method used to measure the RMS of an AC voltage, either taking account of or disre-
garding a superimposed DC voltage. Any given signal shape can be measured.
Analog operation:
Depending on the selected coupling, a superimposed DC component is measured (DC
coupling) or suppressed (AC coupling).
For more settings, see Chapter 5.21, "Level Measurements" , on page 359.
Digital operation:
The true RMS value of the signal content is displayed as a full-scale value from 0.0 to
1.0. Depending on whether "DC Suppress" is activated or deactivated, a superimposed
DC component is measured (deactivated) or suppressed (activated).
Function (RMS, broadband)
Selection of RMS measurement, broadband.
Remote command:
SENSe[1]:FUNCtion RMS
Meas Time
This is used for choosing the measurement time for the purpose of adapting the mea-
surement speed to the waveform or, in the case of single tone signals, to the signal fre-
quency.
The priority can be set to a short measurement time or high accuracy depending on
specific measurement requirements.
In automatic measurement modes the measurement time is adapted to the measured
signal frequency, provided an AC signal that is sufficiently strong and not too low in fre-
quency is present (f
≥ 10 Hz).
Note: With severely noise-corrupted or distorted signals and multi-tone signals, the
automatic measurement modes (especially "Auto Fast") may no longer be able to
clearly detect the signal period. To prevent measurement errors, such signals should
therefore be measured using "Gen Track" or (if an external generator is used) using
the "Value" measurement mode.
Level Measurements