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Sources of measurement errors with digital image correlation

By Team Eikosim | 17 May 2021

By Clara Minguet, Research engineer at EikoSim In digital image correlation as in any measurement process, errors affect measured data. The characteristic of this method lies in the direct dependency between the test and the measurement error [1,2,3]. Indeed, errors need to be estimated for every new test. These errors can be classified in two…

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Camera calibration: principles and procedures

By Team Eikosim | 22 March 2021

By Myriam Berny, R&D engineer at EikoSim The use of a multi-camera system for metrology and accurate measurements requires the calibration of these cameras. They can be represented mathematically by a projection model, in the form of a matrix, allowing the passage of the position of 3D points to their projection in 2D image space.…

small strains

EikoTwin DIC and the measurement of small strains

By Team Eikosim | 22 March 2021

By Lucas Angénieux, Research engineer at EikoSim Innovation in the automotive industry Innovation is at the heart of the automotive industry: autonomous vehicles, shared mobility, advanced equipment, etc. In order to reinvent themselves and remain competitive, it is necessary for automotive industries to innovate and develop new technologies. It is therefore essential for these companies…

Plugin Batch

The Batch mode: a new EikoTwin DIC plugin

By Team Eikosim | 22 March 2021

By Clara Minguet, Research engineer at EikoSim In order to continuously improve the features offered by EikoTwin DIC software, EikoSim has developed a new optional plugin: the Batch mode. It enables to launch, through a configuration file prepared beforehand, the pre-calibration, calibration and displacement measurement for several EikoTwin DIC projects in EKT format. This partial…

IRT Saint Exupery

IRT Saint-Exupéry trusts us with our software : EikoTwin

By Team Eikosim | 18 March 2021

By Elisa Perozzi, Strategic & Digital Marketing Manager at EikoSim Ludovic Barrière is Project Manager at IRT Saint-Exupéry, he tells us about his experience with our software: EikoTwin DIC and EikoTwin Digital Twin. The software EikoTwin DIC in a few words EikoTwin DIC is an image processing software dedicated to the link between measurements and…

Thermal plug-in

Safran Ceramics trusts EikoSim with the “Thermal” plug-in

By Team Eikosim | 17 February 2021

By Elisa Perozzi, Strategic & Digital Marketing Manager at EikoSim Benjamin Lacombe is a Mechanical Design Engineer at Safran Ceramics. He tells us about his experience with EikoTwin DIC and the development of the “Thermal” plug-in. « I work at Safran Ceramics, Safran group’s center of excellence for high-temperature composites. We are in charge of developing…

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Technical functionality: selection of the measurement mesh

By Team Eikosim | 10 February 2021

By Clara Minguet and Lucas Angénieux, Research engineers at EikoSim On EikoTwin DIC, the measurements are directly expressed on the simulation mesh. In order to choose which areas of interest for the test are visible to the camera(s), the so-called measurement mesh must first be selected. Indeed, this mesh will be the one where the…

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Preparation of your Digital Image Correlation test with Blender

By Team Eikosim | 2 February 2021

By Clara Minguet, Research engineer at EikoSim This article invites you to care about an unexpected topic: the preparation of a digital image correlation test with Blender. While research articles do not always mention this aspect of digital image correlation measurements, test preparation is a crucial step in the procedure. The aim is to ensure…

Simulation Validate With DIC

Simulation validation with EikoTwin DIC

By Team Eikosim | 14 January 2021

By Florent Mathieu, Ceo of EikoSim Simulation validation with EikoTwin DIC rely heavily on image processing. Image analysis methods provide full-field test data, that can be used to validate and improve your simulation. Using the unique method of “Model-Based testing”, EikoTwin DIC allows to measure displacements and strains of the observed parts directly on the simulation…

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Measurement errors and digital image correlation

By Team Eikosim | 7 January 2021

By Pierre Baudoin, R&D engineer at EikoSim When conducting a test campaign instrumented by digital image correlation, it must be possible to determine the characteristic measurement error for the quantities of interest studied (measured displacement or strain). This analysis is essential to know whether the measurement made is indeed the desired “signal” and not the…