Tektronix 2337, Инструкция по эксплуатации

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C H A N N E L 1 C H A N N E L 2
(R E F E R E N C E ) / (L A G G IN G )
• • • •
j
'
(IT)
-
/
■ /
I T
i I
V
• • •
1 1
1 1
8 D IV IS IO N S
( 3 6 0 ° )
M E A S U R E
T IM E F R O M
® T O ®
H O R IZ O N T A L
D IF F E R E N C E
411921
C H A N N E L 1 (R E F E R E N C E )
C H A N N E L 2
M E A S U R E
T IM E F R O M
® TO ®
4119-22
Figure 20. Phase difference. Figure 21. High-resolution phase difference.
Figure 21 shows the same signals illustrated in Figure 20,
but magnifying the displays results in a horizontal
difference o f
6
divisions between the tw o signals.
Substituting the given values in the phase difference
formula:
Phase Difference =
6
div x 4 .5 °/div = 27°
Amplitude Comparison
In some applications it may be necessary to establish
a set o f deflection factors other than those indicated by
the VO LTS/DIV switch settings. This is useful fo r com­
paring unknown signals to a reference signal of known
amplitude. To accomplish this, a reference signal o f known
amplitude is first set to an exact number o f vertical divisions
by adjusting the VO LTS/DIV switch and VAR control.
53
@
2237 Operators