@@ -18,7 +18,6 @@ This mode can be used to measure repetitive as well as non-repetitive signals.
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The ETS method requires more than one trigger event in order to fully restore a captured waveform [1].
The ETS method requires more than one trigger event in order to fully restore a captured waveform [1].
This chapter will describe the ETS mode in detail and discusses the limitations as well as the different implementation methods.
ETS enables a digital oscilloscope to capture signals with a much higher effective sample rate than the actual sample rate of the built-in ADCs.
ETS enables a digital oscilloscope to capture signals with a much higher effective sample rate than the actual sample rate of the built-in ADCs.
Subsequently, the oscilloscope will then be able to measure and display signals with a higher frequency.
Subsequently, the oscilloscope will then be able to measure and display signals with a higher frequency.
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Another restriction is that during ETS, it is not possible to take single shots of non-repetitive events like glitches or spikes.
Another restriction is that during ETS, it is not possible to take single shots of non-repetitive events like glitches or spikes.
Figure 1 shows a non-repetitive signal captured with an oscilloscope running in ETS mode.
Figure 1 shows a non-repetitive signal captured with an oscilloscope running in ETS mode.
A similar effect can be observed using the OpenLab FPGA-based oscilloscope.
A similar effect can be observed using the OpenLab 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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A detailed description of how the ETS mode works is given by the upcoming sub-chapters. ETS can be implemented in several ways each with their own advantages and disadvantages.
A detailed description of how the ETS mode works is given by the upcoming sub-chapters. ETS can be implemented in several ways each with their own advantages and disadvantages.
This wiki will describe the two most common ETS methods:
This wiki will introduce the two most common ETS methods: