Agilent Technologies 53220A, Руководство пользователя

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53220A/53230A User’s Guide 105
53220A/53230A Measurements 3
Notes
1. If the phase format is
CENTered
, a typical phase measurement for signals
270
°
out of phase for example, could be
-9.10799485001
. If the
format was
POSitive
, the phase difference measured might typically be
+2.68904450002
.
2. Phase measurements represent the signal phase of the first channel relative
to the second channel in the pair . For example, if the phase format is
CENTered
and the signal on channel 2 is delayed for a period equivalent to
90
°
, the measurement will be 90
°
for the channel pair
(@1),(@2)
. If under
the same signal conditions the channel pair were specified as
(@2),(@1)
, the
measurement would be -90 degrees.
Single-Period
A form of time interval measurement - the single-period measurement, is
based on a single waveform cycle. Single-period measurements provide mea-
surement of “single-shot” or one cycle events; and allow analysis of signal
characteristics (e.g. jitter) that would otherwise be averaged out with standard
(averaging) period measurements.
The commands used to make single-period measurements are: