Tektronix DPO4000 Manuel d'utilisateur télécharger pdf (Page 222)

Commands Listed in Alphabetical Order

MAXimum ﬁnds th

e maximum amplitude. This v alue is the most positive peak

voltage found. It is measured over the entire waveform or gated region. This

measurement is applicable only to the analog channels.

MEAN amplitude measurement ﬁnds the arithmetic mean over the entire waveform

or gated region. This measurement is applicable only to the analog channels.

MINImum ﬁnds the minimum amplitude. This value is typically the most negative

peak voltage. It is measured over the entire waveform or gated region. This

measurement is applicable only to the analog channels.

NDUty (negative duty cycle) is the ratio of the negative pulse width to the signal

period, express ed as a percentage. The duty cycle is measured on the ﬁrst cycle in

the waveform or gated region.

Negative Duty Cycle = ((Negative Width) / Period) × 100%

NEDGECount is the c ount of falling edges.

NOVershoot (negative overshoot) ﬁnds the negative overshoot value over the

entire waveform or gated region. This measurement is applicable only to the

analog channels.

Negative Overshoot = ((Low - Minimum) / Amplitude) × 100%)

NPULSECount is the count of negative pulses.

NWIdth (negative width) measurement is the distance (time) between the middle

reference (default = 50%) amplitude points of a negative pulse. The measurement

is made on the ﬁrst pulse in the waveform or gated region.

PDUty (positive duty cycle) is the ratio of the positive pulse width to the signal

period, expressed as a percentage. It is measured on the ﬁrst cycle in the

waveform or gated region.

Positive Duty Cycle = ((Positive Width)/Period) × 100%

PEDGECount is the count of rising edges.

PERIod is 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.

PHAse measures the phase difference (amount o f time a waveform leads or lags

the reference waveform) between two wa ve forms. The measurement is made

between the middle reference points of the two waveforms and is expressed in

degrees, where 360° represents one waveform cycle.

PK2Pk (peak-to-peak) ﬁnds the absolute difference between the maximum and

minimum amplitude in the entire waveform or gated region. This measurement is

applicable only to the analog channels.

POVershoot is the positive overshoot value over the entire waveform or gated

region. This measurement is applicable only to the analog channels.

Positive Overshoot = ((Maximum - High) / Amplitude) ×100%

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Tektronix DPO4000 Manuel d'utilisateur Page 222