Universal test facility 12x12x5 m / 12 500 kg crane handling
Clean room testing at Frentech aerospace
Non-contact optical measurement techniques are important tool in applications where it is necessary to measure very hot or inaccessible surfaces or thin components, in which connecting of measuring sensor would lead to components influence etc. Optical measurements can be performed both on planar surfaces as well as on complex 3D components, where the reconstruction of the three-dimensional information is based on composition of image from multiple cameras.
Deformation and strain measuring by using optical correlation methods provides accurate information even in areas, where other methods fail. Data are collected throughout the scanned field. In addition to the common values at various points within the area we thus gain full field information about the character of the monitored parameter, such as gradients, concentration etc.
Besides optical measurement we provide strain gauge measurements and measurement of residual stress.
Using optical correlation methods we can easily and accurately monitor the ongoing dynamic events. In addition to information in specific points (as is usual in car crash tests) we can easily obtain information on the distribution of all measured variables in the whole area of interest. In addition to quantitative analysis we gain a qualitative perspective, revealing gradients, concentration of variables etc.
We use high-speed cameras in combination with computer image processing, which provide a unique opportunity to penetrate the details of transient events and reveal the possible causes of unsatisfactory performance of the product.
We provide optical measurement as well as strain gauge measurement and other forms of contact measuring.
For defectoscopy we use conventional measuring methods as well as optical methods. We focus on the electrical potential method for identification of weld joint crevices during factory operation, even at high temperatures. Furthermore, we monitor material thickness changes caused by corrosion or material creep due to high temperatures. This method is can be successfully applied to hardly accessible spots for long-term online monitoring or for regular checks.
For defects measuring we also use a non-destructive optical method called Shearography. Using this method we are able to detect defects beneath the object surface in real time, with a resolution up to 30 nm.
We provide rotordynamics parameters measuring in operation and laboratory conditions. For these kind of measurements deviation sensors and accelerometers are used.
Vibro-graphic technique allows us very fast and periodically examine the ongoing processes, determine their frequency, display component shapes and isolate problematic sets of components in given operating frequency. This technique gives us the possibility of verification of fatigue analysis and the ability to monitor crack propagation in real components. Using additional applications and magneto-dynamic or piezoelectric shakers we are not only able to determine the response of the component to the specified frequency, but also to determine the shapes at different phases.