Automatic measurement of time parameters
UTD2000/3000 series oscillograph can measure
signal frequency, cycle, ascending time,
descending time, positive pulse width, negative
pulse width, delay (of 9 combinations), positive duty
cycle, negative duty cycle and 10 time parameters
automatically. Definitions of such time parameters
are as follows:
RiseTime: It refers to period when waveform
amplitude increases from 10% to 90%;
FallTime: It refers to period when waveform
amplitude decreases from 90% to 10%;
Positive pulse width (+Width): It refers to pulse
width of positive pulse under 50% of amplitude;
Negative pulse width (-Width): It refers to pulse
width of negative pulse under 50% of amplitude;
Delay (ascending edge): It refers to delay from
ascending edge to ascending edge;
Delay (descending edge): It refers to delay from
descending edge to descending edge;
Positive duty cycle (+Duty): It refers to ratio of
positive pulse width and cycle;
Negative duty cycle (-Duty): It refers to ratio of
negative pulse width and cycle;
Operation Description: Please press MEASURE
key so that the screen can display 5 measurement
values. As shown in Form 2-25, user can press any
key of F1 to F5 so that the screen enters into
measurement selection menu.
Measurement menu
Operating Manual for UTD2000/3000
63
