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2020-02-25 18:21:17 +01:00
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2019-12-11 17:33:45 +01:00
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<a accesskey="h" href="./index.html"> UP </a>
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2019-12-11 17:33:45 +01:00
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<a accesskey="H" href="./index.html"> HOME </a>
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2019-12-11 17:33:45 +01:00
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</div><div id="content">
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<h1 class="title">Matlab Functions used for the NASS Project</h1>
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<div id="table-of-contents">
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<h2>Table of Contents</h2>
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<ul>
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<li><a href="#orgea7e3d7">1. computePsdDispl</a></li>
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<li><a href="#org5e769e7">2. computeSetpoint</a></li>
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<li><a href="#org0239a56">3. converErrorBasis</a></li>
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<li><a href="#orgdc168b9">4. computeReferencePose</a></li>
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<li><a href="#org493ab7f">5. Compute the Sample Position Error w.r.t. the NASS</a></li>
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</ul>
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2020-02-25 18:10:20 +01:00
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<div id="outline-container-orgea7e3d7" class="outline-2">
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<h2 id="orgea7e3d7"><span class="section-number-2">1</span> computePsdDispl</h2>
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<div class="outline-text-2" id="text-1">
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|
|
<p>
|
2020-02-25 18:10:20 +01:00
|
|
|
<a id="org2cc2589"></a>
|
2019-12-11 17:33:45 +01:00
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|
</p>
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|
<p>
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|
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|
This Matlab function is accessible <a href="../src/computePsdDispl.m">here</a>.
|
|
|
|
|
</p>
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|
<div class="org-src-container">
|
2020-01-29 20:25:59 +01:00
|
|
|
<pre class="src src-matlab"><span class="org-keyword">function</span> <span class="org-variable-name">[psd_object]</span> = <span class="org-function-name">computePsdDispl</span>(<span class="org-variable-name">sys_data</span>, <span class="org-variable-name">t_init</span>, <span class="org-variable-name">n_av</span>)
|
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|
i_init = find(sys_data.time <span class="org-type">></span> t_init, 1);
|
2019-12-11 17:33:45 +01:00
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|
2020-01-29 20:25:59 +01:00
|
|
|
han_win = hanning(ceil(length(sys_data.Dx(i_init<span class="org-type">:</span>end, <span class="org-type">:</span>))<span class="org-type">/</span>n_av));
|
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|
Fs = 1<span class="org-type">/</span>sys_data.time(2);
|
2019-12-11 17:33:45 +01:00
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|
2020-01-29 20:25:59 +01:00
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|
[pdx, f] = pwelch(sys_data.Dx(i_init<span class="org-type">:</span>end, <span class="org-type">:</span>), han_win, [], [], Fs);
|
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|
|
[pdy, <span class="org-type">~</span>] = pwelch(sys_data.Dy(i_init<span class="org-type">:</span>end, <span class="org-type">:</span>), han_win, [], [], Fs);
|
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|
[pdz, <span class="org-type">~</span>] = pwelch(sys_data.Dz(i_init<span class="org-type">:</span>end, <span class="org-type">:</span>), han_win, [], [], Fs);
|
2019-12-11 17:33:45 +01:00
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|
2020-01-29 20:25:59 +01:00
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|
[prx, <span class="org-type">~</span>] = pwelch(sys_data.Rx(i_init<span class="org-type">:</span>end, <span class="org-type">:</span>), han_win, [], [], Fs);
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|
|
|
|
[pry, <span class="org-type">~</span>] = pwelch(sys_data.Ry(i_init<span class="org-type">:</span>end, <span class="org-type">:</span>), han_win, [], [], Fs);
|
|
|
|
|
[prz, <span class="org-type">~</span>] = pwelch(sys_data.Rz(i_init<span class="org-type">:</span>end, <span class="org-type">:</span>), han_win, [], [], Fs);
|
2019-12-11 17:33:45 +01:00
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|
2020-01-29 20:25:59 +01:00
|
|
|
psd_object = struct(...
|
2019-12-11 17:33:45 +01:00
|
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|
<span class="org-string">'f'</span>, f, ...
|
|
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|
<span class="org-string">'dx'</span>, pdx, ...
|
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|
<span class="org-string">'dy'</span>, pdy, ...
|
|
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|
<span class="org-string">'dz'</span>, pdz, ...
|
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|
<span class="org-string">'rx'</span>, prx, ...
|
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|
<span class="org-string">'ry'</span>, pry, ...
|
2020-01-29 20:25:59 +01:00
|
|
|
<span class="org-string">'rz'</span>, prz);
|
2019-12-11 17:33:45 +01:00
|
|
|
<span class="org-keyword">end</span>
|
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|
</pre>
|
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|
</div>
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|
|
|
</div>
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|
</div>
|
|
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|
2020-02-25 18:10:20 +01:00
|
|
|
<div id="outline-container-org5e769e7" class="outline-2">
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|
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|
|
<h2 id="org5e769e7"><span class="section-number-2">2</span> computeSetpoint</h2>
|
2020-01-29 20:25:59 +01:00
|
|
|
<div class="outline-text-2" id="text-2">
|
2019-12-11 17:33:45 +01:00
|
|
|
<p>
|
2020-02-25 18:10:20 +01:00
|
|
|
<a id="orge6ebb0b"></a>
|
2019-12-11 17:33:45 +01:00
|
|
|
</p>
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|
<p>
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|
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|
|
This Matlab function is accessible <a href="../src/computeSetpoint.m">here</a>.
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|
</p>
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|
<div class="org-src-container">
|
2020-01-29 20:25:59 +01:00
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<pre class="src src-matlab"><span class="org-keyword">function</span> <span class="org-variable-name">setpoint</span> = <span class="org-function-name">computeSetpoint</span>(<span class="org-variable-name">ty</span>, <span class="org-variable-name">ry</span>, <span class="org-variable-name">rz</span>)
|
2019-12-11 17:33:45 +01:00
|
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|
<span class="org-matlab-cellbreak"><span class="org-comment">%%</span></span>
|
2020-01-29 20:25:59 +01:00
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|
|
setpoint = zeros(<span class="org-variable-name">6</span>, 1);
|
2019-12-11 17:33:45 +01:00
|
|
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|
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|
<span class="org-matlab-cellbreak"><span class="org-comment">%% Ty</span></span>
|
2020-01-29 20:25:59 +01:00
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|
Ty = [1 0 0 0 ;
|
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0 1 0 ty ;
|
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0 0 1 0 ;
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0 0 0 1 ];
|
2019-12-11 17:33:45 +01:00
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|
2020-01-29 20:25:59 +01:00
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|
<span class="org-comment">% Tyinv = [1 0 0 0 ;</span>
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<span class="org-comment">% 0 1 0 -ty ;</span>
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<span class="org-comment">% 0 0 1 0 ;</span>
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<span class="org-comment">% 0 0 0 1 ];</span>
|
2019-12-11 17:33:45 +01:00
|
|
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|
|
<span class="org-matlab-cellbreak"><span class="org-comment">%% Ry</span></span>
|
2020-01-29 20:25:59 +01:00
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|
Ry = [ cos(ry) 0 sin(ry) 0 ;
|
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|
0 1 0 0 ;
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|
<span class="org-type">-</span>sin(ry) 0 cos(ry) 0 ;
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|
0 0 0 1 ];
|
2019-12-11 17:33:45 +01:00
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|
<span class="org-comment">% TMry = Ty*Ry*Tyinv;</span>
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|
<span class="org-matlab-cellbreak"><span class="org-comment">%% Rz</span></span>
|
2020-01-29 20:25:59 +01:00
|
|
|
Rz = [cos(rz) <span class="org-type">-</span>sin(rz) 0 0 ;
|
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|
|
sin(rz) cos(rz) 0 0 ;
|
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|
0 0 1 0 ;
|
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|
|
0 0 0 1 ];
|
2019-12-11 17:33:45 +01:00
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|
<span class="org-comment">% TMrz = Ty*TMry*Rz*TMry'*Tyinv;</span>
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<span class="org-matlab-cellbreak"><span class="org-comment">%% All stages</span></span>
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|
<span class="org-comment">% </span><span class="org-comment"><span class="org-constant">TM </span></span><span class="org-comment">= TMrz*TMry*Ty;</span>
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|
TM = Ty<span class="org-type">*</span>Ry<span class="org-type">*</span>Rz;
|
|
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|
|
|
2020-01-29 20:25:59 +01:00
|
|
|
[thetax, thetay, thetaz] = RM2angle(TM(1<span class="org-type">:</span>3, 1<span class="org-type">:</span>3));
|
2019-12-11 17:33:45 +01:00
|
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|
2020-01-29 20:25:59 +01:00
|
|
|
setpoint<span class="org-type">(1:3) </span>= TM(1<span class="org-type">:</span>3, 4);
|
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|
setpoint<span class="org-type">(4:6) </span>= [thetax, thetay, thetaz];
|
2019-12-11 17:33:45 +01:00
|
|
|
|
|
|
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|
<span class="org-matlab-cellbreak"><span class="org-comment">%% Custom Functions</span></span>
|
2020-01-29 20:25:59 +01:00
|
|
|
<span class="org-keyword">function</span> <span class="org-variable-name">[thetax, thetay, thetaz]</span> = <span class="org-function-name">RM2angle</span>(<span class="org-variable-name">R</span>)
|
|
|
|
|
<span class="org-keyword">if</span> abs(abs(R(3, 1)) <span class="org-type">-</span> 1) <span class="org-type">></span> 1e<span class="org-type">-</span>6 <span class="org-comment">% R31 != 1 and R31 != -1</span>
|
|
|
|
|
thetay = <span class="org-type">-</span>asin(R(3, 1));
|
|
|
|
|
thetax = atan2(R(3, 2)<span class="org-type">/</span>cos(thetay), R(3, 3)<span class="org-type">/</span>cos(thetay));
|
|
|
|
|
thetaz = atan2(R(2, 1)<span class="org-type">/</span>cos(thetay), R(1, 1)<span class="org-type">/</span>cos(thetay));
|
2019-12-11 17:33:45 +01:00
|
|
|
<span class="org-keyword">else</span>
|
2020-01-29 20:25:59 +01:00
|
|
|
thetaz = 0;
|
|
|
|
|
<span class="org-keyword">if</span> abs(R(3, 1)<span class="org-type">+</span>1) <span class="org-type"><</span> 1e<span class="org-type">-</span>6 <span class="org-comment">% R31 = -1</span>
|
|
|
|
|
thetay = <span class="org-constant">pi</span><span class="org-type">/</span>2;
|
|
|
|
|
thetax = thetaz <span class="org-type">+</span> atan2(R(1, 2), R(1, 3));
|
2019-12-11 17:33:45 +01:00
|
|
|
<span class="org-keyword">else</span>
|
2020-01-29 20:25:59 +01:00
|
|
|
thetay = <span class="org-type">-</span><span class="org-constant">pi</span><span class="org-type">/</span>2;
|
|
|
|
|
thetax = <span class="org-type">-</span>thetaz <span class="org-type">+</span> atan2(<span class="org-type">-</span>R(1, 2), <span class="org-type">-</span>R(1, 3));
|
2019-12-11 17:33:45 +01:00
|
|
|
<span class="org-keyword">end</span>
|
|
|
|
|
<span class="org-keyword">end</span>
|
|
|
|
|
<span class="org-keyword">end</span>
|
|
|
|
|
<span class="org-keyword">end</span>
|
|
|
|
|
</pre>
|
|
|
|
|
</div>
|
|
|
|
|
</div>
|
|
|
|
|
</div>
|
|
|
|
|
|
2020-02-25 18:10:20 +01:00
|
|
|
<div id="outline-container-org0239a56" class="outline-2">
|
|
|
|
|
<h2 id="org0239a56"><span class="section-number-2">3</span> converErrorBasis</h2>
|
2020-01-29 20:25:59 +01:00
|
|
|
<div class="outline-text-2" id="text-3">
|
2019-12-11 17:33:45 +01:00
|
|
|
<p>
|
2020-02-25 18:10:20 +01:00
|
|
|
<a id="org8c2ffe5"></a>
|
2019-12-11 17:33:45 +01:00
|
|
|
</p>
|
|
|
|
|
|
|
|
|
|
<p>
|
|
|
|
|
This Matlab function is accessible <a href="../src/converErrorBasis.m">here</a>.
|
|
|
|
|
</p>
|
|
|
|
|
|
|
|
|
|
<div class="org-src-container">
|
2020-01-29 20:25:59 +01:00
|
|
|
<pre class="src src-matlab"><span class="org-keyword">function</span> <span class="org-variable-name">error_nass</span> = <span class="org-function-name">convertErrorBasis</span>(<span class="org-variable-name">pos</span>, <span class="org-variable-name">setpoint</span>, <span class="org-variable-name">ty</span>, <span class="org-variable-name">ry</span>, <span class="org-variable-name">rz</span>)
|
2019-12-11 17:33:45 +01:00
|
|
|
<span class="org-comment">% convertErrorBasis -</span>
|
|
|
|
|
<span class="org-comment">%</span>
|
|
|
|
|
<span class="org-comment">% Syntax: convertErrorBasis(p_error, ty, ry, rz)</span>
|
|
|
|
|
<span class="org-comment">%</span>
|
|
|
|
|
<span class="org-comment">% Inputs:</span>
|
|
|
|
|
<span class="org-comment">% - p_error - Position error of the sample w.r.t. the granite [m, rad]</span>
|
|
|
|
|
<span class="org-comment">% - ty - Measured translation of the Ty stage [m]</span>
|
|
|
|
|
<span class="org-comment">% - ry - Measured rotation of the Ry stage [rad]</span>
|
|
|
|
|
<span class="org-comment">% - rz - Measured rotation of the Rz stage [rad]</span>
|
|
|
|
|
<span class="org-comment">%</span>
|
|
|
|
|
<span class="org-comment">% Outputs:</span>
|
|
|
|
|
<span class="org-comment">% - P_nass - Position error of the sample w.r.t. the NASS base [m]</span>
|
|
|
|
|
<span class="org-comment">% - R_nass - Rotation error of the sample w.r.t. the NASS base [rad]</span>
|
|
|
|
|
<span class="org-comment">%</span>
|
|
|
|
|
<span class="org-comment">% Example:</span>
|
|
|
|
|
<span class="org-comment">%</span>
|
|
|
|
|
|
|
|
|
|
<span class="org-matlab-cellbreak"><span class="org-comment">%% If line vector => column vector</span></span>
|
2020-01-29 20:25:59 +01:00
|
|
|
<span class="org-keyword">if</span> size(pos, 2) <span class="org-type">==</span> 6
|
2019-12-11 17:33:45 +01:00
|
|
|
pos = pos<span class="org-type">'</span>;
|
|
|
|
|
<span class="org-keyword">end</span>
|
|
|
|
|
|
2020-01-29 20:25:59 +01:00
|
|
|
<span class="org-keyword">if</span> size(setpoint, 2) <span class="org-type">==</span> 6
|
2019-12-11 17:33:45 +01:00
|
|
|
setpoint = setpoint<span class="org-type">'</span>;
|
|
|
|
|
<span class="org-keyword">end</span>
|
|
|
|
|
|
|
|
|
|
<span class="org-matlab-cellbreak"><span class="org-comment">%% Position of the sample in the frame fixed to the Granite</span></span>
|
2020-01-29 20:25:59 +01:00
|
|
|
P_granite = [pos(1<span class="org-type">:</span>3); 1]; <span class="org-comment">% Position [m]</span>
|
|
|
|
|
R_granite = [setpoint(1<span class="org-type">:</span>3); 1]; <span class="org-comment">% Reference [m]</span>
|
2019-12-11 17:33:45 +01:00
|
|
|
|
|
|
|
|
<span class="org-matlab-cellbreak"><span class="org-comment">%% Transformation matrices of the stages</span></span>
|
|
|
|
|
<span class="org-comment">% T-y</span>
|
2020-01-29 20:25:59 +01:00
|
|
|
TMty = [1 0 0 0 ;
|
|
|
|
|
0 1 0 ty ;
|
|
|
|
|
0 0 1 0 ;
|
|
|
|
|
0 0 0 1 ];
|
2019-12-11 17:33:45 +01:00
|
|
|
|
|
|
|
|
<span class="org-comment">% R-y</span>
|
2020-01-29 20:25:59 +01:00
|
|
|
TMry = [ cos(ry) 0 sin(ry) 0 ;
|
|
|
|
|
0 1 0 0 ;
|
|
|
|
|
<span class="org-type">-</span>sin(ry) 0 cos(ry) 0 ;
|
|
|
|
|
0 0 0 1 ];
|
2019-12-11 17:33:45 +01:00
|
|
|
|
|
|
|
|
<span class="org-comment">% R-z</span>
|
2020-01-29 20:25:59 +01:00
|
|
|
TMrz = [cos(rz) <span class="org-type">-</span>sin(rz) 0 0 ;
|
|
|
|
|
sin(rz) cos(rz) 0 0 ;
|
|
|
|
|
0 0 1 0 ;
|
|
|
|
|
0 0 0 1 ];
|
2019-12-11 17:33:45 +01:00
|
|
|
|
|
|
|
|
<span class="org-matlab-cellbreak"><span class="org-comment">%% Compute Point coordinates in the new reference fixed to the NASS base</span></span>
|
|
|
|
|
<span class="org-comment">% P_nass = TMrz*TMry*TMty*P_granite;</span>
|
|
|
|
|
P_nass = TMrz<span class="org-type">\</span>TMry<span class="org-type">\</span>TMty<span class="org-type">\</span>P_granite;
|
|
|
|
|
R_nass = TMrz<span class="org-type">\</span>TMry<span class="org-type">\</span>TMty<span class="org-type">\</span>R_granite;
|
|
|
|
|
|
2020-01-29 20:25:59 +01:00
|
|
|
dx = R_nass(1)<span class="org-type">-</span>P_nass(1);
|
|
|
|
|
dy = R_nass(2)<span class="org-type">-</span>P_nass(2);
|
|
|
|
|
dz = R_nass(3)<span class="org-type">-</span>P_nass(3);
|
2019-12-11 17:33:45 +01:00
|
|
|
|
|
|
|
|
<span class="org-matlab-cellbreak"><span class="org-comment">%% Compute new basis vectors linked to the NASS base</span></span>
|
2020-01-29 20:25:59 +01:00
|
|
|
<span class="org-comment">% ux_nass = TMrz*TMry*TMty*[1; 0; 0; 0];</span>
|
|
|
|
|
<span class="org-comment">% ux_nass = ux_nass(1:3);</span>
|
|
|
|
|
<span class="org-comment">% uy_nass = TMrz*TMry*TMty*[0; 1; 0; 0];</span>
|
|
|
|
|
<span class="org-comment">% uy_nass = uy_nass(1:3);</span>
|
|
|
|
|
<span class="org-comment">% uz_nass = TMrz*TMry*TMty*[0; 0; 1; 0];</span>
|
|
|
|
|
<span class="org-comment">% uz_nass = uz_nass(1:3);</span>
|
|
|
|
|
|
|
|
|
|
ux_nass = TMrz<span class="org-type">\</span>TMry<span class="org-type">\</span>TMty<span class="org-type">\</span>[1; 0; 0; 0];
|
|
|
|
|
ux_nass = ux_nass(1<span class="org-type">:</span>3);
|
|
|
|
|
uy_nass = TMrz<span class="org-type">\</span>TMry<span class="org-type">\</span>TMty<span class="org-type">\</span>[0; 1; 0; 0];
|
|
|
|
|
uy_nass = uy_nass(1<span class="org-type">:</span>3);
|
|
|
|
|
uz_nass = TMrz<span class="org-type">\</span>TMry<span class="org-type">\</span>TMty<span class="org-type">\</span>[0; 0; 1; 0];
|
|
|
|
|
uz_nass = uz_nass(1<span class="org-type">:</span>3);
|
2019-12-11 17:33:45 +01:00
|
|
|
|
|
|
|
|
<span class="org-matlab-cellbreak"><span class="org-comment">%% Rotations error w.r.t. granite Frame</span></span>
|
|
|
|
|
<span class="org-comment">% Rotations error w.r.t. granite Frame</span>
|
2020-01-29 20:25:59 +01:00
|
|
|
rx_nass = pos(4);
|
|
|
|
|
ry_nass = pos(5);
|
|
|
|
|
rz_nass = pos(6);
|
2019-12-11 17:33:45 +01:00
|
|
|
|
|
|
|
|
<span class="org-comment">% Rotation matrices of the Sample w.r.t. the Granite</span>
|
2020-01-29 20:25:59 +01:00
|
|
|
Mrx_error = [1 0 0 ;
|
|
|
|
|
0 cos(<span class="org-type">-</span>rx_nass) <span class="org-type">-</span>sin(<span class="org-type">-</span>rx_nass) ;
|
|
|
|
|
0 sin(<span class="org-type">-</span>rx_nass) cos(<span class="org-type">-</span>rx_nass)];
|
2019-12-11 17:33:45 +01:00
|
|
|
|
2020-01-29 20:25:59 +01:00
|
|
|
Mry_error = [ cos(<span class="org-type">-</span>ry_nass) 0 sin(<span class="org-type">-</span>ry_nass) ;
|
|
|
|
|
0 1 0 ;
|
|
|
|
|
<span class="org-type">-</span>sin(<span class="org-type">-</span>ry_nass) 0 cos(<span class="org-type">-</span>ry_nass)];
|
2019-12-11 17:33:45 +01:00
|
|
|
|
2020-01-29 20:25:59 +01:00
|
|
|
Mrz_error = [cos(<span class="org-type">-</span>rz_nass) <span class="org-type">-</span>sin(<span class="org-type">-</span>rz_nass) 0 ;
|
|
|
|
|
sin(<span class="org-type">-</span>rz_nass) cos(<span class="org-type">-</span>rz_nass) 0 ;
|
|
|
|
|
0 0 1];
|
2019-12-11 17:33:45 +01:00
|
|
|
|
|
|
|
|
<span class="org-comment">% Rotation matrix of the Sample w.r.t. the Granite</span>
|
|
|
|
|
Mr_error = Mrz_error<span class="org-type">*</span>Mry_error<span class="org-type">*</span>Mrx_error;
|
|
|
|
|
|
|
|
|
|
<span class="org-matlab-cellbreak"><span class="org-comment">%% Use matrix to solve</span></span>
|
2020-01-29 20:25:59 +01:00
|
|
|
R = Mr_error<span class="org-type">/</span>[ux_nass, uy_nass, uz_nass]; <span class="org-comment">% Rotation matrix from NASS base to Sample</span>
|
2019-12-11 17:33:45 +01:00
|
|
|
|
2020-01-29 20:25:59 +01:00
|
|
|
[thetax, thetay, thetaz] = RM2angle(R);
|
2019-12-11 17:33:45 +01:00
|
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|
|
2020-01-29 20:25:59 +01:00
|
|
|
error_nass = [dx; dy; dz; thetax; thetay; thetaz];
|
2019-12-11 17:33:45 +01:00
|
|
|
|
|
|
|
|
<span class="org-matlab-cellbreak"><span class="org-comment">%% Custom Functions</span></span>
|
2020-01-29 20:25:59 +01:00
|
|
|
<span class="org-keyword">function</span> <span class="org-variable-name">[thetax, thetay, thetaz]</span> = <span class="org-function-name">RM2angle</span>(<span class="org-variable-name">R</span>)
|
|
|
|
|
<span class="org-keyword">if</span> abs(abs(R(3, 1)) <span class="org-type">-</span> 1) <span class="org-type">></span> 1e<span class="org-type">-</span>6 <span class="org-comment">% R31 != 1 and R31 != -1</span>
|
|
|
|
|
thetay = <span class="org-type">-</span>asin(R(3, 1));
|
2019-12-11 17:33:45 +01:00
|
|
|
<span class="org-comment">% thetaybis = pi-thetay;</span>
|
2020-01-29 20:25:59 +01:00
|
|
|
thetax = atan2(R(3, 2)<span class="org-type">/</span>cos(thetay), R(3, 3)<span class="org-type">/</span>cos(thetay));
|
|
|
|
|
<span class="org-comment">% thetaxbis = atan2(R(3, 2)/cos(thetaybis), R(3, 3)/cos(thetaybis));</span>
|
|
|
|
|
thetaz = atan2(R(2, 1)<span class="org-type">/</span>cos(thetay), R(1, 1)<span class="org-type">/</span>cos(thetay));
|
|
|
|
|
<span class="org-comment">% thetazbis = atan2(R(2, 1)/cos(thetaybis), R(1, 1)/cos(thetaybis));</span>
|
2019-12-11 17:33:45 +01:00
|
|
|
<span class="org-keyword">else</span>
|
2020-01-29 20:25:59 +01:00
|
|
|
thetaz = 0;
|
|
|
|
|
<span class="org-keyword">if</span> abs(R(3, 1)<span class="org-type">+</span>1) <span class="org-type"><</span> 1e<span class="org-type">-</span>6 <span class="org-comment">% R31 = -1</span>
|
|
|
|
|
thetay = <span class="org-constant">pi</span><span class="org-type">/</span>2;
|
|
|
|
|
thetax = thetaz <span class="org-type">+</span> atan2(R(1, 2), R(1, 3));
|
2019-12-11 17:33:45 +01:00
|
|
|
<span class="org-keyword">else</span>
|
2020-01-29 20:25:59 +01:00
|
|
|
thetay = <span class="org-type">-</span><span class="org-constant">pi</span><span class="org-type">/</span>2;
|
|
|
|
|
thetax = <span class="org-type">-</span>thetaz <span class="org-type">+</span> atan2(<span class="org-type">-</span>R(1, 2), <span class="org-type">-</span>R(1, 3));
|
2019-12-11 17:33:45 +01:00
|
|
|
<span class="org-keyword">end</span>
|
|
|
|
|
<span class="org-keyword">end</span>
|
|
|
|
|
<span class="org-keyword">end</span>
|
|
|
|
|
|
|
|
|
|
<span class="org-keyword">end</span>
|
|
|
|
|
</pre>
|
|
|
|
|
</div>
|
|
|
|
|
</div>
|
|
|
|
|
</div>
|
|
|
|
|
|
2020-02-25 18:10:20 +01:00
|
|
|
<div id="outline-container-orgdc168b9" class="outline-2">
|
|
|
|
|
<h2 id="orgdc168b9"><span class="section-number-2">4</span> computeReferencePose</h2>
|
2020-01-29 20:25:59 +01:00
|
|
|
<div class="outline-text-2" id="text-4">
|
2019-12-11 17:33:45 +01:00
|
|
|
<p>
|
2020-02-25 18:10:20 +01:00
|
|
|
<a id="org98cbe6e"></a>
|
2019-12-11 17:33:45 +01:00
|
|
|
</p>
|
|
|
|
|
|
|
|
|
|
<p>
|
|
|
|
|
This Matlab function is accessible <a href="src/computeReferencePose.m">here</a>.
|
|
|
|
|
</p>
|
|
|
|
|
|
|
|
|
|
<div class="org-src-container">
|
2020-01-29 20:25:59 +01:00
|
|
|
<pre class="src src-matlab"><span class="org-keyword">function</span> <span class="org-variable-name">[WTr]</span> = <span class="org-function-name">computeReferencePose</span>(<span class="org-variable-name">Dy</span>, <span class="org-variable-name">Ry</span>, <span class="org-variable-name">Rz</span>, <span class="org-variable-name">Dh</span>, <span class="org-variable-name">Dn</span>)
|
2019-12-11 17:33:45 +01:00
|
|
|
<span class="org-comment">% computeReferencePose - Compute the homogeneous transformation matrix corresponding to the wanted pose of the sample</span>
|
|
|
|
|
<span class="org-comment">%</span>
|
|
|
|
|
<span class="org-comment">% Syntax: [WTr] = computeReferencePose(Dy, Ry, Rz, Dh, Dn)</span>
|
|
|
|
|
<span class="org-comment">%</span>
|
|
|
|
|
<span class="org-comment">% Inputs:</span>
|
|
|
|
|
<span class="org-comment">% - Dy - Reference of the Translation Stage [m]</span>
|
|
|
|
|
<span class="org-comment">% - Ry - Reference of the Tilt Stage [rad]</span>
|
|
|
|
|
<span class="org-comment">% - Rz - Reference of the Spindle [rad]</span>
|
|
|
|
|
<span class="org-comment">% - Dh - Reference of the Micro Hexapod (Pitch, Roll, Yaw angles) [m, m, m, rad, rad, rad]</span>
|
|
|
|
|
<span class="org-comment">% - Dn - Reference of the Nano Hexapod [m, m, m, rad, rad, rad]</span>
|
|
|
|
|
<span class="org-comment">%</span>
|
|
|
|
|
<span class="org-comment">% Outputs:</span>
|
|
|
|
|
<span class="org-comment">% - WTr -</span>
|
|
|
|
|
|
|
|
|
|
<span class="org-matlab-cellbreak"><span class="org-comment">%% Translation Stage</span></span>
|
2020-01-29 20:25:59 +01:00
|
|
|
Rty = [1 0 0 0;
|
|
|
|
|
0 1 0 Dy;
|
|
|
|
|
0 0 1 0;
|
|
|
|
|
0 0 0 1];
|
2019-12-11 17:33:45 +01:00
|
|
|
|
|
|
|
|
<span class="org-matlab-cellbreak"><span class="org-comment">%% Tilt Stage - Pure rotating aligned with Ob</span></span>
|
2020-01-29 20:25:59 +01:00
|
|
|
Rry = [ cos(Ry) 0 sin(Ry) 0;
|
|
|
|
|
0 1 0 0;
|
|
|
|
|
<span class="org-type">-</span>sin(Ry) 0 cos(Ry) 0;
|
|
|
|
|
0 0 0 1];
|
2019-12-11 17:33:45 +01:00
|
|
|
|
|
|
|
|
<span class="org-matlab-cellbreak"><span class="org-comment">%% Spindle - Rotation along the Z axis</span></span>
|
2020-01-29 20:25:59 +01:00
|
|
|
Rrz = [cos(Rz) <span class="org-type">-</span>sin(Rz) 0 0 ;
|
|
|
|
|
sin(Rz) cos(Rz) 0 0 ;
|
|
|
|
|
0 0 1 0 ;
|
|
|
|
|
0 0 0 1 ];
|
2019-12-11 17:33:45 +01:00
|
|
|
|
|
|
|
|
|
|
|
|
|
<span class="org-matlab-cellbreak"><span class="org-comment">%% Micro-Hexapod</span></span>
|
2020-01-29 20:25:59 +01:00
|
|
|
Rhx = [1 0 0;
|
|
|
|
|
0 cos(Dh(4)) <span class="org-type">-</span>sin(Dh(4));
|
|
|
|
|
0 sin(Dh(4)) cos(Dh(4))];
|
2019-12-11 17:33:45 +01:00
|
|
|
|
2020-01-29 20:25:59 +01:00
|
|
|
Rhy = [ cos(Dh(5)) 0 sin(Dh(5));
|
|
|
|
|
0 1 0;
|
|
|
|
|
<span class="org-type">-</span>sin(Dh(5)) 0 cos(Dh(5))];
|
2019-12-11 17:33:45 +01:00
|
|
|
|
2020-01-29 20:25:59 +01:00
|
|
|
Rhz = [cos(Dh(6)) <span class="org-type">-</span>sin(Dh(6)) 0;
|
|
|
|
|
sin(Dh(6)) cos(Dh(6)) 0;
|
|
|
|
|
0 0 1];
|
2019-12-11 17:33:45 +01:00
|
|
|
|
2020-01-29 20:25:59 +01:00
|
|
|
Rh = [1 0 0 Dh(1) ;
|
|
|
|
|
0 1 0 Dh(2) ;
|
|
|
|
|
0 0 1 Dh(3) ;
|
|
|
|
|
0 0 0 1 ];
|
2019-12-11 17:33:45 +01:00
|
|
|
|
2020-01-29 20:25:59 +01:00
|
|
|
Rh(1<span class="org-type">:</span>3, 1<span class="org-type">:</span>3) = Rhz<span class="org-type">*</span>Rhy<span class="org-type">*</span>Rhx;
|
2019-12-11 17:33:45 +01:00
|
|
|
|
|
|
|
|
<span class="org-matlab-cellbreak"><span class="org-comment">%% Nano-Hexapod</span></span>
|
2020-01-29 20:25:59 +01:00
|
|
|
Rnx = [1 0 0;
|
|
|
|
|
0 cos(Dn(4)) <span class="org-type">-</span>sin(Dn(4));
|
|
|
|
|
0 sin(Dn(4)) cos(Dn(4))];
|
2019-12-11 17:33:45 +01:00
|
|
|
|
2020-01-29 20:25:59 +01:00
|
|
|
Rny = [ cos(Dn(5)) 0 sin(Dn(5));
|
|
|
|
|
0 1 0;
|
|
|
|
|
<span class="org-type">-</span>sin(Dn(5)) 0 cos(Dn(5))];
|
2019-12-11 17:33:45 +01:00
|
|
|
|
2020-01-29 20:25:59 +01:00
|
|
|
Rnz = [cos(Dn(6)) <span class="org-type">-</span>sin(Dn(6)) 0;
|
|
|
|
|
sin(Dn(6)) cos(Dn(6)) 0;
|
|
|
|
|
0 0 1];
|
2019-12-11 17:33:45 +01:00
|
|
|
|
2020-01-29 20:25:59 +01:00
|
|
|
Rn = [1 0 0 Dn(1) ;
|
|
|
|
|
0 1 0 Dn(2) ;
|
|
|
|
|
0 0 1 Dn(3) ;
|
|
|
|
|
0 0 0 1 ];
|
2019-12-11 17:33:45 +01:00
|
|
|
|
2020-02-25 18:10:20 +01:00
|
|
|
Rn(1<span class="org-type">:</span>3, 1<span class="org-type">:</span>3) = Rnz<span class="org-type">*</span>Rny<span class="org-type">*</span>Rnx;
|
2019-12-11 17:33:45 +01:00
|
|
|
|
|
|
|
|
<span class="org-matlab-cellbreak"><span class="org-comment">%% Total Homogeneous transformation</span></span>
|
|
|
|
|
WTr = Rty<span class="org-type">*</span>Rry<span class="org-type">*</span>Rrz<span class="org-type">*</span>Rh<span class="org-type">*</span>Rn;
|
|
|
|
|
<span class="org-keyword">end</span>
|
|
|
|
|
</pre>
|
|
|
|
|
</div>
|
|
|
|
|
</div>
|
|
|
|
|
</div>
|
2020-02-25 18:10:20 +01:00
|
|
|
<div id="outline-container-org493ab7f" class="outline-2">
|
|
|
|
|
<h2 id="org493ab7f"><span class="section-number-2">5</span> Compute the Sample Position Error w.r.t. the NASS</h2>
|
|
|
|
|
<div class="outline-text-2" id="text-5">
|
2020-01-29 20:25:59 +01:00
|
|
|
<p>
|
2020-02-25 18:10:20 +01:00
|
|
|
<a id="org6dcd4fb"></a>
|
2020-01-29 20:25:59 +01:00
|
|
|
</p>
|
|
|
|
|
|
|
|
|
|
<p>
|
|
|
|
|
This Matlab function is accessible <a href="src/computeSampleError.m">here</a>.
|
|
|
|
|
</p>
|
|
|
|
|
|
|
|
|
|
<div class="org-src-container">
|
|
|
|
|
<pre class="src src-matlab"><span class="org-keyword">function</span> <span class="org-variable-name">[MTr]</span> = <span class="org-function-name">computeSampleError</span>(<span class="org-variable-name">WTm</span>, <span class="org-variable-name">WTr</span>)
|
|
|
|
|
<span class="org-comment">% computeSampleError -</span>
|
|
|
|
|
<span class="org-comment">%</span>
|
|
|
|
|
<span class="org-comment">% Syntax: [MTr] = computeSampleError(WTm, WTr)</span>
|
|
|
|
|
<span class="org-comment">%</span>
|
|
|
|
|
<span class="org-comment">% Inputs:</span>
|
|
|
|
|
<span class="org-comment">% - WTm - Homoegeneous transformation that represent the</span>
|
|
|
|
|
<span class="org-comment">% wanted pose of the sample with respect to the granite</span>
|
|
|
|
|
<span class="org-comment">% - WTr - Homoegeneous transformation that represent the</span>
|
|
|
|
|
<span class="org-comment">% measured pose of the sample with respect to the granite</span>
|
|
|
|
|
<span class="org-comment">%</span>
|
|
|
|
|
<span class="org-comment">% Outputs:</span>
|
|
|
|
|
<span class="org-comment">% - MTr - Homoegeneous transformation that represent the</span>
|
|
|
|
|
<span class="org-comment">% wanted pose of the sample expressed in a frame</span>
|
|
|
|
|
<span class="org-comment">% attached to the top platform of the nano-hexapod</span>
|
|
|
|
|
|
|
|
|
|
MTr = zeros(4,4);
|
|
|
|
|
|
|
|
|
|
MTr = [WTm(1<span class="org-type">:</span>3,1<span class="org-type">:</span>3)<span class="org-type">'</span>, <span class="org-type">-</span>WTm(1<span class="org-type">:</span>3,1<span class="org-type">:</span>3)<span class="org-type">'*</span>WTm(1<span class="org-type">:</span>3,4) ; 0 0 0 1]<span class="org-type">*</span>WTr;
|
|
|
|
|
<span class="org-keyword">end</span>
|
|
|
|
|
</pre>
|
|
|
|
|
</div>
|
|
|
|
|
</div>
|
2019-12-11 17:33:45 +01:00
|
|
|
</div>
|
|
|
|
|
</div>
|
|
|
|
|
<div id="postamble" class="status">
|
|
|
|
|
<p class="author">Author: Dehaeze Thomas</p>
|
2020-02-25 18:21:17 +01:00
|
|
|
<p class="date">Created: 2020-02-25 mar. 18:20</p>
|
2019-12-11 17:33:45 +01:00
|
|
|
</div>
|
|
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|
</body>
|
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</html>
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