Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Depth calibrations of a 2D-CMOS-based partially coherent light
  interferometer   This work concerns the development of a 3D measuring system able to realize
noncontact surface topography with millimetric depth-range and micrometric
resolutions both in the spatial and depth axes. The optical concept is based on
the well known low coherence interferometry (LCI) technique. The most
widespread set-up of such technique is that of measuring only a point at a time
with a 2D scanning system that permits the measure on an area. The novel
concept of our instrument is based on the use of a 2D sensor (CMOS), where
every single pixel measures a point on the object and this permits a fast
analysis on square centimeters areas without the need for any precise (and
expensive) scanning system. We present here accurate depth calibration which
shows the potentiality of this instrument.

22
The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
15
The categories of this paper are: nucl-ex
4
The categories of this paper are: cond-mat
19
The categories of this paper are: eess
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
5
The categories of this paper are: gr-qc