Rename folder
@ -3,7 +3,7 @@
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
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<head>
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<!-- 2019-05-02 jeu. 10:11 -->
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<!-- 2019-05-02 jeu. 14:08 -->
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<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1" />
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<title>Effect of the rotation of the Slip-Ring</title>
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@ -254,16 +254,16 @@ for the JavaScript code in this tag.
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<h2>Table of Contents</h2>
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<div id="text-table-of-contents">
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<ul>
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<li><a href="#org080be51">1. Measurement Description</a></li>
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<li><a href="#orgd6d4c44">2. Load data</a></li>
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<li><a href="#org13f8e49">3. Analysis</a></li>
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<li><a href="#org650786b">4. Conclusion</a></li>
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<li><a href="#org6cf5814">1. Measurement Description</a></li>
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<li><a href="#orgd40e7ef">2. Load data</a></li>
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<li><a href="#org4ee458b">3. Analysis</a></li>
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<li><a href="#org7c09cda">4. Conclusion</a></li>
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</ul>
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</div>
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</div>
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<div id="outline-container-org080be51" class="outline-2">
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<h2 id="org080be51"><span class="section-number-2">1</span> Measurement Description</h2>
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<div id="outline-container-org6cf5814" class="outline-2">
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<h2 id="org6cf5814"><span class="section-number-2">1</span> Measurement Description</h2>
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<div class="outline-text-2" id="text-1">
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<p>
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Random Signal is generated by one DAC of the SpeedGoat.
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@ -352,8 +352,8 @@ Here, the rotation speed of the Slip-Ring is set to 1rpm.
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</div>
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</div>
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<div id="outline-container-orgd6d4c44" class="outline-2">
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<h2 id="orgd6d4c44"><span class="section-number-2">2</span> Load data</h2>
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<div id="outline-container-orgd40e7ef" class="outline-2">
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<h2 id="orgd40e7ef"><span class="section-number-2">2</span> Load data</h2>
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<div class="outline-text-2" id="text-2">
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<p>
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We load the data of the z axis of two geophones.
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@ -366,11 +366,11 @@ sr_on = load<span class="org-rainbow-delimiters-depth-1">(</span><span class="o
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</div>
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</div>
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<div id="outline-container-org13f8e49" class="outline-2">
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<h2 id="org13f8e49"><span class="section-number-2">3</span> Analysis</h2>
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<div id="outline-container-org4ee458b" class="outline-2">
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<h2 id="org4ee458b"><span class="section-number-2">3</span> Analysis</h2>
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<div class="outline-text-2" id="text-3">
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<p>
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Let's first look at the signal produced by the DAC (figure <a href="#org1fa25e6">1</a>).
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Let's first look at the signal produced by the DAC (figure <a href="#org7a29853">1</a>).
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</p>
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<div class="org-src-container">
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@ -384,14 +384,14 @@ xlim<span class="org-rainbow-delimiters-depth-1">(</span><span class="org-rainbo
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</div>
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<div id="org1fa25e6" class="figure">
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<div id="org7a29853" class="figure">
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<p><img src="figs/random_signal.png" alt="random_signal.png" />
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</p>
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<p><span class="figure-number">Figure 1: </span>Random signal produced by the DAC</p>
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</div>
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<p>
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We now look at the difference between the signal directly measured by the ADC and the signal that goes through the slip-ring (figure <a href="#org5daa921">2</a>).
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We now look at the difference between the signal directly measured by the ADC and the signal that goes through the slip-ring (figure <a href="#org88cd8db">2</a>).
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</p>
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<div class="org-src-container">
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@ -407,7 +407,7 @@ legend<span class="org-rainbow-delimiters-depth-1">(</span><span class="org-stri
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</div>
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<div id="org5daa921" class="figure">
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<div id="org88cd8db" class="figure">
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<p><img src="figs/slipring_comp_signals.png" alt="slipring_comp_signals.png" />
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</p>
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<p><span class="figure-number">Figure 2: </span>Alteration of the signal when the slip-ring is turning</p>
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@ -415,9 +415,10 @@ legend<span class="org-rainbow-delimiters-depth-1">(</span><span class="org-stri
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</div>
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</div>
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<div id="outline-container-org650786b" class="outline-2">
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<h2 id="org650786b"><span class="section-number-2">4</span> Conclusion</h2>
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<div id="outline-container-org7c09cda" class="outline-2">
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<h2 id="org7c09cda"><span class="section-number-2">4</span> Conclusion</h2>
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<div class="outline-text-2" id="text-4">
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<div class="note">
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<p>
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<b>Remaining questions</b>:
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</p>
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@ -425,12 +426,14 @@ legend<span class="org-rainbow-delimiters-depth-1">(</span><span class="org-stri
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<li>Should the measurement be redone using voltage amplifiers?</li>
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<li>Use higher rotation speed and measure for longer periods (to have multiple revolutions) ?</li>
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</ul>
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</div>
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</div>
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</div>
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</div>
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<div id="postamble" class="status">
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<p class="author">Author: Thomas Dehaeze</p>
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<p class="date">Created: 2019-05-02 jeu. 10:11</p>
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<p class="date">Created: 2019-05-02 jeu. 14:08</p>
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<p class="validation"><a href="http://validator.w3.org/check?uri=referer">Validate</a></p>
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</div>
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</body>
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@ -102,7 +102,8 @@ We now look at the difference between the signal directly measured by the ADC an
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[[file:figs/slipring_comp_signals.png]]
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* Conclusion
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#+begin_note
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*Remaining questions*:
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- Should the measurement be redone using voltage amplifiers?
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- Use higher rotation speed and measure for longer periods (to have multiple revolutions) ?
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#+end_note
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