WR6K-OM-E Rev A
ISSUED: October 2003
73
3.
Touch one of the channel buttons under
Select Waveform
.
4.
Touch inside the
Select Segment
field and enter a segment number, using the pop-up
keypad.
RIS SAMPLING MODE -- FOR HIGHER SAMPLE RATES
RIS (Random Interleaved Sampling) is an acquisition technique that allows effective sampling
rates higher than the maximum single-shot sampling rate. It is used on repetitive waveforms with
a stable trigger. The maximum effective sampling rate of 50 GS/s can be achieved with RIS by
making 100 single-shot acquisitions at 500 MS/s. The bins thus acquired are positioned
approximately 20 ps apart. The process of acquiring these bins and satisfying the time constraint
is a random one. The relative time between ADC sampling instants and the event trigger provides
the necessary variation, measured by the timebase to 5 ps resolution.
The instrument requires multiple triggers to complete an acquisition. The number depends on the
sample rate: the higher the sample rate, the more triggers are required. It then interleaves these
segments (see figure) to provide a waveform covering a time interval that is a multiple of the
maximum single-shot sampling rate. However, the real-time interval over which the instrument
collects the waveform data is much longer, and depends on the trigger rate and the amount of
interleaving required. The oscilloscope is capable of acquiring approximately 40,000 RIS
segments per second.
Note:
RIS mode is not available when the scope is operating in Fixed Sample Rate mode.
Summary of Contents for 6000 SERIES
Page 65: ...WR6K OM E Rev A ISSUED October 2003 63 Proper Orientation of Drive ...
Page 131: ...WR6K OM E Rev A ISSUED October 2003 129 Example ...
Page 141: ...WR6K OM E Rev A ISSUED October 2003 139 ...
Page 236: ...Operator s Manual 234 ISSUED October 2003 WR6K OM E Rev A Example 6 ...
Page 261: ...WR6K OM E Rev A ISSUED October 2003 259 ...
Page 286: ...Operator s Manual 284 ISSUED October 2003 WR6K OM E Rev A ...
Page 304: ...Operator s Manual 302 ISSUED October 2003 WR6K OM E Rev A ...
Page 307: ...WR6K OM E Rev A ISSUED October 2003 305 Convolve two signals ...
Page 348: ...Operator s Manual 346 ISSUED October 2003 WR6K OM E Rev A ...
Page 402: ...Operator s Manual 400 ISSUED October 2003 WR6K OM E Rev A ...