Tektronix 475A - Time Duration Measurements; (Basic 475 A)

DIFFERENCE
(A) A DISPLAY
(B) B DLY'D DISPLAY
Fig. 25. Time difference between repetitive pulses.
Substituting the given values:
Time Difference = (8.81 1.31) X 0.2 us.
The time difference is 1.5 microseconds,
TIME DURATION MEASUREMENTS
(BASIC 475A)
Obtain a Delayed Sweep Dispiay. Set the A TIME/DIV
switch to display a single event. Be sure the VAR
TIME/DIV control is in the calibrated detent. For the most
accurate measurement, set the B TIME/DIV switch to the
fastest sweep speed that gives a usable (visible) inten-
sified zone. Vertically position the display to place the time
measurement points to the center horizontal graticule line
(see Fig. 26).
Use the DELAV TIME POSITION dial to move the start
(left-hand edge) of the intensified zone to just touch the
intersection of the signal and the center horizontal
graticule line (see Fig. 26, Point A}. Note the DELAY TIME
POSITION dial setting.
Use the DELAY TIME POSITION dial to move the start
of the intensified zone to the second time measurement
point (see Fig. 26, Point B}. Note the DELAY TIME
POSITION dial setting.
@
475A/DM44
Operators
49