M00001656
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ISO 17123-6 2nd Edition, June 1, 2012 Optics and optical instruments - Field procedures for testing geodetic and surveying instruments - Part 6: Rotating lasers
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Availability date: 07/13/2021
Description / Abstract:
This part of ISO 17123 specifies field procedures to be adopted
when determining and evaluating the precision (repeatability) of
rotating lasers and their ancillary equipment when used in building
and surveying measurements for levelling tasks. Primarily, these
tests are intended to be field verifications of the suitability of
a particular instrument for the immediate task at hand and to
satisfy the requirements of other standards. They are not proposed
as tests for acceptance or performance evaluations that are more
comprehensive in nature.
This part of ISO 17123 can be thought of as one of the first
steps in the process of evaluating the uncertainty of a measurement
(more specifically a measurand). The uncertainty of a result of a
measurement is dependent on a number of parameters. Therefore this
part of ISO 17123 differentiates between different measures of
accuracy and objectives in testing, like repeatability and
reproducibility (between-day repeatability), and of course gives a
thorough assessment of all possible error sources, as prescribed by
ISO/IEC Guide 98-3 and ISO 17123-1.
These field procedures have been developed specifically for
in situ applications without the need for special
ancillary equipment and are purposefully designed to minimize
atmospheric influences.