TDS 620 & TDS 640 User Manual
GĆ1
Glossary
AC coupling
A type of signal transmission that blocks the DC component of a
signal but uses the dynamic (AC) component. Useful for observing an
AC signal that is normally riding on a DC signal.
Accuracy
The closeness of the indicated value to the true value.
Acquisition
The process of sampling signals from input channels, digitizing the
samples into data points, and assembling the data points into a
waveform record. The waveform record is stored in memory. The
trigger marks time zero in that process.
Acquisition interval
The time duration of the waveform record divided by the record
length. The oscilloscope displays one data point for every acquisition
interval.
Active cursor
The cursor that moves when you turn the general purpose knob. It is
represented in the display by a solid line. The @ readout on the
display shows the absolute value of the active cursor.
Aliasing
A false representation of a signal due to insufficient sampling of high
frequencies or fast transitions. A condition that occurs when an
oscilloscope digitizes at an effective sampling rate that is too slow to
reproduce the input signal. The waveform displayed on the oscillo-
scope may have a lower frequency than the actual input signal.
Amplitude
The High waveform value less the Low waveform value.
AND
A logic (Boolean) function in which the output is true when and only
when all the inputs are true. On the oscilloscope, that is a trigger logic
pattern and state function.
Area
Measurement of the waveform area taken over the entire waveform
or the gated region. Expressed in volt-seconds. Area above ground is
positive; area below ground is negative.
Attenuation
The degree the amplitude of a signal is reduced when it passes
through an attenuating device such as a probe or attenuator. That is,
the ratio of the input measure to the output measure. For example, a
10X probe will attenuate, or reduce, the input voltage of a signal by a
factor of 10.
Содержание TDS 620
Страница 10: ...Product Description Product Description vi...
Страница 17: ...Tutorial Replace this page with the tab divider of the same name...
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Страница 37: ...Concepts Replace this page with the tab divider of the same name...
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Страница 55: ...In Detail Replace this page with the tab divider of the same name...
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Страница 166: ...Signal Path Compensation In Detail 3 110 Figure 3 53 Performing a Signal Path Compensation...
Страница 180: ...Zoom In Detail 3 124 See Acquisition on page 2 7 See Display Modes on page 3 30 For More Information...
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Страница 206: ...Appendix B Specification Appendices A 24...
Страница 222: ...Appendix E Packaging for Shipment Appendices A 40...
Страница 227: ...Glossary Index Replace this page with the tab divider of the same name...
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Страница 238: ...Glossary Glossary G 10...
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