Acquisition
Waveform Record
The instrumen
t builds the waveform record
through use of the following parameters:
Sample interval: The time between
sample points.
Record length: The number of samples
required to fil
l a waveform record.
Trigger point
: The zero time reference in
a w aveform record.
Horizontal position: When horizontal
delay is off, the horizontal position is
a percentage
of the waveform record
between 0 and 99.9 percent. The trigger
point and the horizontal reference a re at
thesametim
einthewaveformrecord.
For example, if the horizontal position is
50 percent, then the trigger point is in the
middle of th
e w aveform record. When
horizontal delay is on, the time from the
trigger point to the horizontal reference
is the hori
zontal delay.
Interpolation
Your instrument can interpolate between the samples it acquires when it does not have all of the actual samples it needs to fill
the w aveform record. Linear interpolation computes record points between actual acquired samples by using a straight line fit.
Sin(x)/x interpolation computes record points using a curve fit between the actual values acquired. Sin(x)/x interpolation
is the default interpolation mode because it requires fewer actual sample points than linear interpolation to accurately
represent the waveform.
Quick Tip
Use the display style Intensified Samples to intensify the real samples and dim the interpolated samples. (See page 36,
Setting the Display Style.)
20 TDS6000B & TDS6000C Series Quick Start User Manual
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