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Dimensional measurements based on coordinate metrology are widely used for product verification, process control and dimensional faults root causes diagnostics of various manufacturing processes. In this study, the results of the measuring surface scanning of coordinate measuring machine with the prototype of optoelectronic device have been presented. The presented device is able to determine actual (real) inaccuracy of the CMM in two axes (X, Y). The prototype scanning device is installed in the measuring probe place. The method makes possible scanning with the established accuracy (max. 0.1 µm). A short description of the new method and the device is added, and some initial results are discussed. The results concern the inaccuracy of the CMMs example measuring area.

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The detection of internal defects is a major production and safety issue for the newest generations of aircraft. New materials and manufacturing processes in the aircraft industry demand efficient quality assurance in manufacturing and inspection in maintenance. Advanced metallic material processes (titanium) are used or developed for the production of heavily loaded flying components (in fan blade construction). The inspection of these parts mainly made out of titanium (or CFRP) requires the determination of the percentage of bonded grain sizes around 10-30 µm. This is primarily due to the advantages of a high signal-to-noise ratio and good detection sensitivity. In this article, a diagnosing method of the blade interior by means of the laser ultrasonic is presented. Identification of small fatigue cracks presents a challenging problem during nondestructive testing of fatigue-damaged structures. Laser ultrasonic is a technique that uses two laser beams; one with a short pulse for the generation of ultrasound and another with a long pulse or continuous coupled to an optical interferometer for detection. The results of research of the internal blade structure are presented.