Gshotts: /* Enabling Averaging */

2024-01-16T20:13:33Z

Enabling Averaging

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	<td>[[File:AveragingLocation.~~PNG~~\|thumb\|Location of the Averaging controls in [[Basic Mode]]]]</td><td>[[File:AveragingLocationAdvanced.png\|thumb\|Location of the Averaging controls in [[Advanced Mode]]]]</td>		<td>[[File:AveragingLocation.png\|thumb\|Location of the Averaging controls in [[Basic Mode]]]]</td><td>[[File:AveragingLocationAdvanced.png\|thumb\|Location of the Averaging controls in [[Advanced Mode]]]]</td>
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Gshotts: /* Enabling Averaging */

2024-01-16T20:13:24Z

Enabling Averaging

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	<td>[[File:AveragingLocation.PNG\|thumb\|Location of the Averaging controls in [[Basic Mode]]]]</td><td>[[File:AveragingLocationAdvanced.~~PNG~~\|thumb\|Location of the Averaging controls in [[Advanced Mode]]]]</td>		<td>[[File:AveragingLocation.PNG\|thumb\|Location of the Averaging controls in [[Basic Mode]]]]</td><td>[[File:AveragingLocationAdvanced.png\|thumb\|Location of the Averaging controls in [[Advanced Mode]]]]</td>
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Gshotts: Created page with "
Waveform averaging is a process whereby multiple waveforms are summed together and a mathematical average calculated at each point. This has the result of smoothing out transient signals (e.g. noise), leaving only the data to be tested by the user.

Noise on a waveform The same waveform after 10 averages

By using..."

2024-01-16T20:12:03Z

Created page with "<p>Waveform averaging is a process whereby multiple waveforms are summed together and a mathematical average calculated at each point. This has the result of smoothing out transient signals (e.g. noise), leaving only the data to be tested by the user.</p> <table align="center"> <tr valign="top"> <td>center|thumb|Noise on a waveform</td> <td>center|thumb|The same waveform after 10 averages </td> </tr> </table> <p>By using..."

New page

<p>Waveform averaging is a process whereby multiple waveforms are summed together and a mathematical average calculated at each point. This has the result of smoothing out transient signals (e.g. noise), leaving only the data to be tested by the user.</p>
<table align="center">
<tr valign="top">
<td>[[File:AveragePre.png|center|thumb|Noise on a waveform]]</td>
<td>[[File:AveragePost.png|center|thumb|The same waveform after 10 averages]]
</td>
</tr>
</table>
<p>By using averaging on a set of waveforms, noise can be reduced and more precise measurements can be taken.</p>

==Enabling Averaging==
<table>
<tr valign="top">
<td>
<p>There are two ways to enable averaging: both methods use slightly different configurations.

<ol>
<li>Averaging can be enabled via the [[Scan Manager]] form (in [[Advanced Mode]]), or the Scan setup form ( in [[Basic Mode]]).</li>
<li>Averaging can be enabled via the [[Digital Oscilloscope#Board Settings|Board Settings]] tab of the [[Digital Oscilloscope]]. To show the Averaging settings, click on the "Show Advanced" button.</li>
</ol>
</td>
<td>[[File:AveragingLocation.PNG|thumb|Location of the Averaging controls in [[Basic Mode]]]]</td><td>[[File:AveragingLocationAdvanced.PNG|thumb|Location of the Averaging controls in [[Advanced Mode]]]]</td>
</tr>
</table>

===Averaging via Scan Setup===
<p>If using the simple averaging option, the system will divide the currently specified increment by the number of averages n and collect the results, averaging every n results.</p>

===Averaging via the Board Settings of the Digital Oscilloscope===
<p>If using averaging via the board settings, the system will keep the current increment, but use multitriggering (see below) to generate a burst of n results. The results are then averaged.</p>

====Averaging and MultiTrigger====
<p>The "MultiTrigger" option tells the A/D board to generate multiple acquisitions whenever a trigger is received. Using this feature, the averaged waveforms can be "clustered" in a smaller region than would occur if simply using the normal trigger.</p>

<p>When active, instead of generating one acquisition per trigger, the A/D will generate a number of acquisitions equal to the number of waveforms to average. A delay between acquisitions can be set using the "Holdoff" field.</p>

<div style="border:1px solid red;text-align:center">
'''''Note:''' The holdoff must be sufficient to collect and process each individual acquisition: thus, if end of the acquisition is at 30 us from the [[Glossary of Terms#M|main bang]], the holdoff must be at '''least''' 30 us + extra for A/D processing time. The system will attempt to compensate for an insufficient holdoff. However if set too low, acquisition errors will occur.''
</div>

==Collecting while Averaging==
<p>By using the Scan Manager or the [[Basic Mode]] setup window, collecting while averaging is simply a matter of following normal scan procedures. Scan speed may be reduced due to increased processing load if scanning at high resolution.</p>

<p>If scanning using The Board tab from the [[Digital Oscilloscope]], extra care must be taken to ensure that multitrigger and holdoff are set correctly.</p>

Waveform Averaging - Revision history

Gshotts: /* Enabling Averaging */

Gshotts: /* Enabling Averaging */