The following table compares our measurement systems in terms of the measured variables.
Q400 and LIMtrack can calculate via integrated analysis module (scripting) many other measures (Young's-modulus, temperature coefficient of expansion, velocities, etc.).

Product

Base measurement variable

Integral*

Spatially resolved

Typical Applications
RTSS -
Videoextensometer		 1D-displacement, distance, distance change
1D-strain (longitudinal, transversal)
  Standardised material testing (e.g.tensile testing)
Determination of material parameters, vibration measurement
Q400 -
Bildkorrelation		 2D & 3D displacement
Surface strains
Specimen thickness, Volume strain
3D coordinates (object geometry)
3D velocity and acceleration







Material testing
Component testing
Fatigue tests, crack propagation
3D Vibration test
Modal analysis
StrobeCAM -
Vibrationsanalyse		 Video recording   Vibration tests with Shaker
LIMtrack

2D displacement / motion
2D velocity and acceleration

Motion analysis
2D vibration analysis
Surphaser -
3D Scanner		 3D coordinate / 3D geometry   Quality control
Reverse Engineering

 
*Integral:
The RTSS video extensometer measures the strain from the distance change of two markers. The measured strain value is therefore the average (integral) component elongation between the markers and similar to a mechanical extensometers
With the Q400-DIC system, the integral (locally averaged ) measurement values (extensometer, polygon surfaces, circular surfaces, etc.) are optionally calculated after the spatially resolved analysis.