Company: Limess Messtechnik & Software GmbH
Optical deformation and displacement analysis
RTSS Realtime Strain Sensor, DIC Digital image Correlation, 3D point tracking, etc. are modern, non-contact, optical measurement techniques to quantify displacements and distortions.
From video extensometers to 2D and 3D image correlation and stroboscopic image analysis, we offer a wide range of products that can be designed and combined for specific tasks.
Products
RTSS Videoextensometer - non-contact strain sensor for materials testing
The RTSS video extensometer is used for non-contact measurement of longitudinal and transverse strain during material testing. It is used for (tensile), compression and fatigue tests as well as flat and round specimens with image fields from 5mm to 1m. For rope testing, the system is used for image fields up to 5m. Strains from 0.0005% to 1000% can be measured.
Advantages of the RTSS video extensometer:
- Non-contact strain measurement up to specimen breakage
- Quick set-up and easy sample labelling
- Flexible measuring field from a few mm to several m
- Suitable for all tensile testing machines
- Independent of material
LIMtrack-6D - 3D marker tracking and 3D motion analysis with a single camera
3D marker tracking and 3D motion measurement with a single camera and coded markers:
The coded markers provide 6 degrees of freedom (6 DOF), consisting of 3D coordinates (x, y, z) and 3D angles (roll, pitch, yaw).
The markers have binary coding with 32 different IDs for unique identification.
A holographic pattern provides precise 3D angle measurements.
Applications:
- Safety tests for motor vehicles
- Crash tests
- Biomechanics
- Robotics
- Aeronautics, space and defence
- Deformation measurement
- Mechanical testing, structural testing
Q400 - DIC systems for areal measurement of deformation and strain
With the Q400 measuring system, spatially resolved 2D or 3D deformation analysis is carried out precisely, quickly and in a user-friendly manner.
The areal and non-contact measuring system provides vivid results with a high added value compared to strain gauges (DMS) and tactile sensors.
The modular system is characterised by high flexibility of the optical design and can thus be optimally adapted to the respective task.
The intuitive Istra4D measurement software provides the corresponding measurement accuracy for each measurement value (displacement, deformation, strain, 3D coordinates, etc.).
Through optimised algorithms, Istra4D can resolve local effects, e.g. in crack growth, better than other DIC systems.
Über einen besonderen Cluster-Ansatz lassen sich bis zu 16 Kameras in einem Q400 System verwenden wodurch eine bessere Oberflächenabdeckung bei komplexen Bauteilgeometrien und eine höhere Meßgenauigkeit erreicht wird.Through optimised algorithms, Istra4D can resolve local effects, e.g. in crack growth, better than other DIC systems.