{'fraction_non_alphanumeric': 0.013595166163141994, 'fraction_numerical': 0.0, 'mean_word_length': 5.978947368421053, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Application of image pattern correlation for non-intrusive deformation measurements of fast rotating objects on aircrafts

The Image Pattern Correlation Technique (IPCT) in combination with high-speed stroboscopic imaging enables nonintrusive measurements of surface deformation of fast vibrating or rotating objects. This paper describes a dedicated instrumentation for the measurement of the deformation of aircraft propellers as well as the results of its application. The further ideas of imaging technologies based on the collected experiences, in particular the high-power pulsed object illumination based on semiconductor light sources are also presented.