diff --git a/demo/plate1n/data/sample-x146-y284-signal-Txx.csv b/demo/plate1n/data/sample-x146-y284-signal-Txx.csv
new file mode 100644
index 0000000..0a22566
--- /dev/null
+++ b/demo/plate1n/data/sample-x146-y284-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
+-1.139056848842301406e-09
+-2.721167824404346902e-08
+-4.061759000251186080e-07
+-3.685280944409896620e-06
+-1.959258042916189879e-05
+-5.889892418053932488e-05
+-1.023606964736245573e-04
+-1.247256732312962413e-04
+-1.132336983573623002e-04
+-2.408849832136183977e-05
+1.379265886498615146e-04
+3.670199366752058268e-04
+6.164020742289721966e-04
+7.836915901862084866e-04
+7.428965182043612003e-04
+4.369143571238964796e-04
+-1.539765071356669068e-04
+-8.792259031906723976e-04
+-1.547895721159875393e-03
+-1.921473769471049309e-03
+-1.844590879045426846e-03
+-1.280705560930073261e-03
+-3.820678102783858776e-04
+5.882676923647522926e-04
+1.330774044618010521e-03
+1.668698270805180073e-03
+1.573461806401610374e-03
+1.190874841995537281e-03
+7.437521708197891712e-04
+4.243276780471205711e-04
+3.123702481389045715e-04
+3.438725252635776997e-04
+3.541719925124198198e-04
+1.932551676873117685e-04
+-1.860752818174660206e-04
+-7.011917186900973320e-04
+-1.167532056570053101e-03
+-1.386953750625252724e-03
+-1.247885520569980145e-03
+-7.857408490963280201e-04
+-1.688912161625921726e-04
+3.840499848593026400e-04
+6.918996805325150490e-04
+6.949456874281167984e-04
+4.627681337296962738e-04
+1.379818713758140802e-04
+-1.378438173560425639e-04
+-2.546885807532817125e-04
+-1.985403505386784673e-04
+-4.006833842140622437e-05
+1.402576453983783722e-04
+2.598929859232157469e-04
+2.892232150770723820e-04
+2.568120835348963737e-04
+1.842436613515019417e-04
+9.450204379390925169e-05
+2.380685145908500999e-05