Section VI
Model 166D, MX-2962/USM-l05A
Table 6-4
I Table 6-4. Delaying Sweep Linearity
I
I
I
MODEL 1660:
I TEKTRON I X I80A
@I609 OR qI70A SWEEP SELECTOR TO
TIME -MARK
I GENERATOR osclLLosc PE DELAYING SWEEP
DELAY FUNCTION TO
I
000000000 TRIGGER MAIN SWEEP
DELAYING SWEEP
I
TIME I M~LLISECOND
I7 0
000000000 TRIGGER SOURCE TO INT.
I
SWEEP TIME TO IO
MICROSECONDS/CM
TRIGGER SOURCE TO IN1
"O TRIGGER SLOPE TO+
SWEEP MODE TO PRESET
Read
Performance Standard
Preliminary Action Indication On
Zonnect TimeMark Generator ( 1 millisecond markers) DELAY
I to Oscilloscope vert INPUT. Adjust TRIGGER LEVEL LENGTH
controls for stable sweep. Align markers withgraticule. dial
Adjust DELAY LENGTH to put brightened part of trace
under secondmarker. Set SWEEP SELECTOR toMAIN
SWEEP DELAYED and adjust DELAY LENGTH to
put leading edge of marker at start of trace. Record
DELAY LENGTH.
DELAY
Repeat for remaining markers (third through eleventh)
LENGTH
dial
DELAY No point may deviate verti-
I Plot deviation from integral number on DELAY LENGTH
cally from the line by more
dial versus marker as shown below. Draw a straight LENGTH
dial than two minor dial
line through the points with minimum deviation of
divisions.
points from the line.
DELAY No point may deviate from
Repeat steps 1, 2, and 3 with DELAYING SWEEP TIME
at 5 microseconds, Oscilloscope SWEEP TIME at .1 LENGTH the line by more than five
dial divisions.
microsecond/cm, and 5 microsecond markers.
Example:
Deviation
Marker DELAY Minor
Number LENGTH Divisions
2 0.98 -2
3 1.985 -1.5
4 2.99 -1
5 3.995 -.5
6 5.00 0
7 6.005 + .5
8 7.01 +1
MARKER NUMBER no
9 8.01 +I
10 9.00 0
11 9.99 -1
6-3
01227-1
1 |
ACEC
