Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Final assembly, metrology, and testing of the WEAVE fibre positioner   WEAVE is the new wide-field spectroscopy facility for the prime focus of the
William Herschel Telescope at La Palma, Spain. Its fibre positioner is
essential for the accurate placement of the spectrograph's 960 fibre multiplex.
We provide an overview of the final assembly and metrology of the fibre
positioner, and results of lab commissioning of its robot gantries. A
completely new z-gantry for each positioner robot was acquired, with
measurements showing a marked improvement in positioning repeatability. We also
present the first results of the configuration software testing, and discuss
the metrology procedures that must be repeated after the positioner's arrival
at the observatory.

16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
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The categories of this paper are: dg-ga
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The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th