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Tektronix 464 - Frequency Measurements (Basic 466;464)

Tektronix 464
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HORIZONTAL
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DISTANCE
1737·11
Fig.
28.
Time duration.
The
DELAY
TIME
POSITION
dial
setting
at
Point
A
(Fig. 28) is 1.20.
The
DELAY
TIME
POSITION
dial
at
Point
B (Fig. 28) is 9.53.
To
find
the
time
duration
use
the
formula:
Time
Time
Difference
Duration
[second
first
l
delay
time
dial
dial
x
(A
TIME/DIV
setting
setting
setting)
Substituting the given values:
Time
Duration=
(9.53 - 1.20) X 2
ms
=16.66
ms
FREQUENCY MEASUREMENTS
(BASIC 466/464)
The
frequency
of
a
recurrent
signal can be
calculated
by
taking the reciprocal
of
the
time
duration
of
one
event.
EXAMPLE: The
time
duration
of
one
event
(Point
A
to
Point
B,
Fig. 28)
is
16.66
milliseconds.
Using the formula:
1
Frequency
= . .
time
duration
Substituting
the given values:
Frequency
=
16
.
66
ms
60 hertz
@
466/464 DM44 Operators
53

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