LHCb Velo - Module-05 R_si-plane.txt
Original Data at R_si-plane.txt
Workpiece 240 / Measurement 2 / Element 3 / POINTS
| No. |
X |
Y |
Z |
ø |
W factor
|
| 1 |
-85.531 |
73.875 |
276.004 |
0.000 |
1.000 |
| 2 |
-98.336 |
73.927 |
244.004 |
0.000 |
1.000 |
| 3 |
-130.035 |
73.950 |
230.502 |
0.000 |
1.000 |
| 4 |
-161.734 |
73.923 |
244.005 |
0.000 |
1.000 |
| 5 |
-174.534 |
73.922 |
276.005 |
0.000 |
1.000 |
| 6 |
-152.012 |
73.923 |
276.005 |
0.000 |
1.000 |
| 7 |
-103.011 |
73.854 |
276.005 |
0.000 |
1.000 |
| 8 |
-130.027 |
73.918 |
266.990 |
0.000 |
1.000 |
| 9 |
-130.027 |
73.918 |
257.027 |
0.000 |
1.000 |
| 10 |
-130.028 |
73.939 |
247.025 |
0.000 |
1.000 |
Measurements are x,y,z points on the surface of the silicon.
The first 5 points are the fiducial positions.
Mean values of x and z are calculated for the 5 fiducial points:
xmean 130.034 ; zmean 254.104 ; ymean 73.919 ; yRMS 0.024
An x, z translation then maps the mean position to the nominal mean
and allows measured and nominal fiducial points to be compared.
Rmeas is distance from mean to the fiducial point and can be compared with nominal Rnom.
| Num | x' | y' | Delta x | Delta y | Rmeas | Rnom | Delta R | Rtheta | Theta
mrad |
|---|
Translation parameters: xtrans -130.034 ; ztrans -275.004
| 1 | -44.503 | 1.000 |
-0.003 | 0.000 |
49.600 | 49.597 | 0.003 |
0.003 | 0.060 |
| 2 | -31.698 | -31.000 |
0.002 | 0.000 |
33.268 | 33.270 | -0.002 |
0.002 | 0.060 |
| 3 | 0.001 | -44.502 |
0.001 | -0.002 |
23.602 | 23.600 | 0.002 |
0.002 | 0.095 |
| 4 | 31.700 | -30.999 |
-0.000 | 0.001 |
33.270 | 33.270 | -0.000 |
0.001 | 0.030 |
| 5 | 44.500 | 1.001 |
-0.000 | 0.001 |
49.597 | 49.597 | 0.000 |
0.001 | 0.020 |
| Mean | | |
0.001 | 0.000 |
| |
0.001 |
0.002 | 0.053 |