Letectví a kosmonautika - Postup metrologického posuzování pro kinematická pole měřená korelací digitálního obrazu (Norma k přímému použití jako ČSN).
NORMA vydána dne 1.6.2021
Označení normy: ČSN EN 4861
Třídící znak: 319401
Katalogové číslo: 512079
Datum vydání normy: 1.6.2021
Počet stran: 40
Přibližná hmotnost: 120 g (0.26 liber)
Země: Česká technická norma
Kategorie: Technické normy ČSN
This document specifies the monitoring of mechanical tests and inspections performed both at the material (coupon) and at the structural scale by the implementation of kinematic field measurements by digital image correlation. This document describes an in situ method for evaluating the metrological performance of an extensometer system using image correlation for the delivery of displacement fields, and by extrapolation, of deformation fields. It can be implemented prior to the actual start of the test (or inspection). It will inform of the metrological performance in testing conditions.
This document allows the metrological performance of the measuring technology to be quantified. The methodology described herein is not to be considered as a calibration step. This reference document does not exhaustively specify the constitutive elements of a generic system of Digital Image Correlation measurement. This reference does not address the measurement of 3D shapes via stereocorrelation systems