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Philosophy
of Performance
The Division´s laboratories concentrate and give priority
to its role in the performance of their functions as a
metrological laboratory of Inmetro, whose mission is the custody
of the national standards; to take part in laboratorial comparison
programs accredited to the specific area in which the service is
demanded. In line with the purposes of a national laboratory of
metrology, the Division seeks to reach the highest levels of accuracy
and the lowest experimental
uncertainties associated with the measuring process.
Services
Offered
The Division also offers calibration services of specific
instruments and optics standards demanded by laboratories accredited
by Inmetro in the Brazilian Calibration Network and the Brazilian
Test Network, as well as by laboratories linked to the Brazilian
Network of Legal Metrology and Quality. Among the various measuring
ranges, types of instruments and associated uncertainties, standard
blocks (0-100 mm) are calibrated, laser wave length of He-Ne, laser
frequency, spectral lamps frequency, coefficient of linear expansion
of a square, optics plan and parallel optics.
Other
Activities
Development of metrological programs of standard
comparisons, projects and qualification of measuring instruments;
development of techniques and procedures of tests and calibration;
elaboration of technical regulations ; installation of Quality Systems
etc.
Developed
Projects
Developed Projects In the area of
development, the Division, in partnership with metrological institutions
from Brazil and abroad, coordinates the following basic projects
in the field of metrology: The metrology of frequencies: development
and stabilization of laser; Candela Project: realization of the
SI unit of luminous intensity; development of laboratory qualification
in photometer;
cryogenic radiometer project (for telecommunications, by fiber optics).
Standards
of Reference
In the domain of Optics metrology, the Division is responsible
for protecting Brazil´s metrological standards, which are
systematically traced and compared to the international standards
though Key Comparisons under the supervision of the Bureau International
des Poids et Mesures and to standards of metrological laboratories
of other countries,
such as: the National Institute of Standards and Technology (NIST/USA),
the Instituto Nacional de Tecnologia Industrial (INTI/Argentina),
the PhysikalischTechnische Bundesanstalt (PTB/Germany) and the Instituto
Elettrotécico Nazionali (IEN/Italy).
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The
Optics Metrology Division maintains a laboratory and support infrastructure
installed in an area covering 2,500 square meters, with adequate
capability, with an anti-vibration suspension isolated room, with
mechanical and electromagnetic interference protection, endowed
with climatization and physical installations that meet the demands
