Annex I - VERTIC

▼M2
6A005 f. (continued)
1. Dynamic wavefront (phase) measuring equipment capable of
mapping at least 50 positions on a beam wavefront and any
of the following:
a. Frame rates equal to or more than 100 Hz and phase
discrimination of at least 5 % of the beam’s wavelength;
or
b. Frame rates equal to or more than 1 000 Hz and phase
discrimination of at least 20 % of the beam’s wavelength;
2. ‘Laser’ diagnostic equipment capable of measuring ‘SHPL’
system angular beam steering errors of equal to or less than
10 μrad;
3. Optical equipment and components, specially designed for a
phased-array ‘SHPL’ system for coherent beam combination
to an accuracy of λ/10 at the designed wavelength, or
0,1 μm, whichever is the smaller;
4. Projection telescopes specially designed for use with
‘SHPL’ systems.
g. ‘Laser acoustic detection equipment’ having all of the
following:
1. CW laser output power equal to or exceeding 20 mW;
2. Laser frequency stability equal to or better (less) than
10 MHz;
3. Laser wavelengths equal to or exceeding 1 000 nm but not
exceeding 2 000 nm;
4. Optical system resolution better (less) than 1 nm; and
5. Optical Signal to Noise ratio equal to or exceeding 10 3 .
Technical Note:
‘Laser acoustic detection equipment’ is sometimes referred to
as a Laser Microphone or Particle Flow Detection Microphone.
6A006 ‘Magnetometers’, ‘magnetic gradiometers’, ‘intrinsic magnetic
gradiometers’, underwater electric field sensors, ‘compensation
systems’, and specially designed components therefor, as follows:
Note: 6A006 does not control instruments specially designed for
fishery applications or biomagnetic measurements for
medical diagnostics.
a. ‘Magnetometers’ and subsystems as follows:
1. ‘Magnetometers’ using ‘superconductive’ (SQUID) ‘technology’
and having any of the following:
a. SQUID systems designed for stationary operation,
without specially designed subsystems designed to
reduce in-motion noise, and having a ‘sensitivity’ equal
to or lower (better) than 50 fT (rms) per square root Hz
at a frequency of 1 Hz; or
2009R0428 — EN — 15.06.2012 — 002.001 — 237