@@ -32,12 +32,13 @@ Figure 1 shows a non-repetitive signal captured with an oscilloscope running in
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@@ -32,12 +32,13 @@ Figure 1 shows a non-repetitive signal captured with an oscilloscope running in
A similar effect can be observed using the OpenLab FPGA-based oscilloscope.
A similar effect can be observed using the OpenLab FPGA-based oscilloscope.
For example, if the oscilloscope captures in ETS mode and the user disables the triggering, the display will get distorted. The result can be seen in figure 2.
For example, if the oscilloscope captures in ETS mode and the user disables the triggering, the display will get distorted. The result can be seen in figure 2.
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image::https://es.technikum-wien.at/openlab/openlab_wiki/wikis/img/ETS_theory/ETS_glitch.png[caption="Figure 1: ",title="Non-repititive signal captured using ETS (3)",height=300]
image::https://es.technikum-wien.at/openlab/openlab_wiki/wikis/img/ETS_theory/ETS_glitch.png[caption="Figure 1: ",title="Non-repititive signal captured using ETS (1)",height=300]
image::https://es.technikum-wien.at/openlab/openlab_wiki/wikis/img/ETS_theory/ETS_glitch_OpenLab.png[caption="Figure 2: ",title="Non-repetitive signal captured with the OpenLab oscilloscope using the ETS mode",height=300]
image::https://es.technikum-wien.at/openlab/openlab_wiki/wikis/img/ETS_theory/ETS_glitch_OpenLab.png[caption="Figure 2: ",title="Non-repetitive signal captured with the OpenLab oscilloscope using the ETS mode",height=300]
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The reason for this is similar to the effect described by the Tektronix article [1].
ETS depends very much on repetitive trigger events. The acquisition will not work probably if the limitations of ETS are ignored.
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ETS acquires signals by taking samples across multiple trigger events. This “scans” the signal step by step and enables an accurate representation of the captured waveform.
