[Clas12_rich] Information on RICH mirror CMM analysis

[Marco Mirazita]

Hi Tyler,
here my answers.

Il 2016-07-05 16:31 Tyler Lemon ha scritto:
> Dear Sandro,
> 
> We have been reviewing the presentation shared about the RICH mirror
> CMM measurement analysis and have questions regarding slides 6 and 7.
> I have attached just those slides for reference.
> 
> On slide 6:
> 1. What does "From Mirror passports" mean?
It's the set of characterization measurements the CMA did before 
shipping the mirrors

> 2. Are the red numbers denoted as "from 3D model" from the CMM or are
> they from previous models?
"From 3D model" means the 3D CAD drawings made by Sandro/Dario

> 3. Are the black numbers denoted as "measured by CMA" the theoretical
> specifications given to the mirror manufacturer?
"measured by CMA" means, as I said before, the measurements made by CMA 
and reported in the passports

> 
> On slide 7:
> 4. What measurements are noted by the squares and CMA passport? Are
> they the red numbers on slide 6?
CMA passports in the legend means the CMA measured side length minus the 
side length from the CAD model.

> 5. Are the red dots the data from the CMM measurement points?
Similar, it is the CMM measured side length minus the side length in the 
CAD model.

> 6. What data points correspond to what side and diagonal? They are not
> labeled in the plot and we are having trouble telling which side
> corresponds to which data point set.
The first 4 points in the plots are the sides (top,right,bottom,left), 
the last two are the diagonals (top-left -> bottom-right, bottom-left -> 
top-right).

Marco