Tektronix 466 User Manual

RISETIME (DM44}
Set controls as follows:
FUNCTION
HORIZ DISPLAY
B SOURCE
B
TIME/DIV
!:::.. TIME
I I I_
w
..Jo
<( :J
z!::
(!)..J
- 0..
en::!:
<(
L
I NT ENS I Fl ED
I
ZONES -...:..;.;,..
v
~"'
,J,
~@"
,J"
.. "
0
LI
I
o-
I
TIME
AINTEN
ST ARTS AFTER DELAY
3
or 4 positions more
cw than A TIME/DIV
To move the time-
measurement
point to
the right of the ref-
erence point
I
~®·~
~
. ~
......
,J'7
....
MEASURE
TIME FROM
ATOB
----
_ H~~~~~~:L -
(1737-13)2037-34
Fig. 34. Risetime.
Set the A TIME/DIV switch to a setting that displays
several events. Set the VOL TS/DIV and VAR VOL TS/DIV
so the amplitude of the display is exactly 5 divisions.
Vertically
position the display so the bottom touches the
0% graticule line and the top touches the 100% graticule
line.
Adjust the DELAY TIME POSITION control to move the
reference
point to the 10% graticule line (see Fig. 34 Point
A). Adjust the!:::.. TIME control to move the time measure-
ment point to the 90% graticule line (see Fig. 34, Point B).
The Readout and Scale Factor Lamps indicate the
risetime.
MIX (DM44)
For the MIX mode of operation, the same general
procedures can be used. With the first part of the display at
a sweep rate set by
the A TIME/DIV switch, and the second
part of the display at a sweep rate set by the B TIME/DIV
switch, it is not necessary to switch display modes to
ensure location of the correct pulse.
However, inaccuracies are
introduced into the
measurement by
the transition from A to B sweeps. The B
DL Y'D
mode is the most accurate and therefore the
recommended
mode of making differential time
measurements.
64
466/464 DM44 Operators
@
I
I
I
I
I
I
I

Tektronix 466 Specifications

General

Brand	Tektronix
Model	466
Category	Test Equipment
Language	English