diff --git a/demo/plate1n/data/sample-x150-y352-signal-Txx.csv b/demo/plate1n/data/sample-x150-y352-signal-Txx.csv
new file mode 100644
index 0000000..b424769
--- /dev/null
+++ b/demo/plate1n/data/sample-x150-y352-signal-Txx.csv
@@ -0,0 +1,99 @@
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+-1.021995668624638462e-37
+-4.275182955154424835e-34
+-9.646384059514485350e-31
+-1.313570696326597839e-27
+-1.102462598722696633e-24
+-5.801806143329918557e-22
+-1.940684495015486712e-19
+-4.168085351677126469e-17
+-5.786218011482159931e-15
+-5.207476702455415829e-13
+-3.035125276107386583e-11
+-1.139056737819998943e-09
+-2.721168002040030842e-08
+-4.061757863382808864e-07
+-3.685277533804764971e-06
+-1.959245673788245767e-05
+-5.889687963644973934e-05
+-1.023468648781999946e-04
+-1.247332402272149920e-04
+-1.136487408075481653e-04
+-2.533816223149187863e-05
+1.362754555884748697e-04
+3.646610130090266466e-04
+6.153252325020730495e-04
+7.851777481846511364e-04
+7.488837582059204578e-04
+4.474220040719956160e-04
+-1.410201657563447952e-04
+-8.673441479913890362e-04
+-1.542170182801783085e-03
+-1.928605604916810989e-03
+-1.865989761427044868e-03
+-1.313417102210223675e-03
+-4.145968996454030275e-04
+5.679067689925432205e-04
+1.331826904788613319e-03
+1.691089710220694542e-03
+1.603930140845477581e-03
+1.206524320878088474e-03
+7.225966546684503555e-04
+3.606568789109587669e-04
+2.304423978785052896e-04
+2.877631923183798790e-04
+3.822233120445162058e-04
+3.467070928309112787e-04
+8.741520287003368139e-05
+-3.696193452924489975e-04
+-8.897143998183310032e-04
+-1.287090824916958809e-03
+-1.409183023497462273e-03
+-1.212974195368587971e-03
+-7.618122617714107037e-04
+-1.947634154930710793e-04
+3.190640418324619532e-04
+6.563962087966501713e-04
+7.600732496939599514e-04
+6.459474680013954639e-04
+3.751262556761503220e-04
+6.087237852625548840e-05
+-1.862220669863745570e-04
+-2.997539413627237082e-04
+-2.343958476558327675e-04
+-2.087645952997263521e-05
+2.665461797732859850e-04
+5.433699116110801697e-04
+6.953684496693313122e-04
+6.560936453752219677e-04
+4.526562988758087158e-04