Tektronix MDO4000C Series, Руководство пользователя

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Selecting automatic measurements in the time domain
The following tables list each automatic measurement by category: time or
amplitude. See
Taking automatic measurements in the time domain on page 77.
Table 3: Time measurements
Measurement Description
Frequency The first cycle in a waveform or gated region. Frequency is the
reciprocal of the period; it is measured in hertz (Hz) where one
Hz is one cycle per second.
Period The time required to complete the first cycle in a waveform or
gated region. Period is the reciprocal of frequency and is
measured in seconds.
Rise Time The time required for the leading edge of the first pulse in the
waveform or gated region to rise from the low reference value
(default = 10%) to the high reference value (default = 90%) of the
final value.
Fall Time The time required for the falling edge of the first pulse in the
waveform or gated region to fall from the high reference value
(default = 90%) to the low reference value (default = 10%) of the
final value.
Delay The time between the mid reference (default 50%) amplitude
point of two different waveforms. See also Phase.
Phase The amount of time that one waveform leads or lags another
waveform, expressed in degrees where 360° makes up one
waveform cycle. See also Delay.
Positive Pulse
Width The distance (time) between the mid reference (default 50%)
amplitude points of a positive pulse. The measurement is made
on the first pulse in the waveform or gated region.
Negative Pulse
Width The distance (time) between the mid reference (default 50%)
amplitude points of a negative pulse. The measurement is made
on the first pulse in the waveform or gated region.
Positive Duty
Cycle The ratio of the positive pulse width to the signal period
expressed as a percentage. The duty cycle is measured on the
first cycle in the waveform or gated region.
Negative Duty
Cycle The ratio of the negative pulse width to the signal period
expressed as a percentage. The duty cycle is measured on the
first cycle in the waveform or gated region.
Burst Width The duration of a burst (a series of transient events) and is
measured over the entire waveform or gated region.
Analyze waveform or trace data
78 MDO4000C Series Oscilloscope User Manual
Preliminary